Notice: I will post articles to “FuelCell japan-2” from now on, with some cause.
Fuelcell japan-2: http://fuelcelljapan-2.blogspot.jp/
2012年11月22日木曜日
2012年11月15日木曜日
Study of Polarization Effect and Thermal Stability in Aged Lithium-Ion Battery
Battery Safety 2012 December 6-7, 2012, Las Vegas, NV, USA
Advancements in System Design, Integration & Testing for Safety & Reliability
"Study of Polarization Effect and Thermal Stability in Aged Lithium-Ion Battery"- By Mahmood Tabaddor, PhD, Underwriters Laboratories
Research into the safety performance of lithium-ion cells has increased tremendously in recent years.
Field failures, though rare, may suggest that some failure mechanisms are dependent upon the state of the cell over a period of time, as such rechargeable sources of energy experience many charging and discharging cycles.
UL has hence proposed a project to investigate the safety performance in aged lithium-ion cells.
After a series of study, the polarization effect and the shift in the thermal properties in aged cells are found to be the major causes to safety concerns. >> More
Advancements in System Design, Integration & Testing for Safety & Reliability
"Study of Polarization Effect and Thermal Stability in Aged Lithium-Ion Battery"- By Mahmood Tabaddor, PhD, Underwriters Laboratories
Research into the safety performance of lithium-ion cells has increased tremendously in recent years.
Field failures, though rare, may suggest that some failure mechanisms are dependent upon the state of the cell over a period of time, as such rechargeable sources of energy experience many charging and discharging cycles.
UL has hence proposed a project to investigate the safety performance in aged lithium-ion cells.
After a series of study, the polarization effect and the shift in the thermal properties in aged cells are found to be the major causes to safety concerns. >> More
Large Capacity L-ion Battery Technologies and Market Prospects
A book, entitled “Large Capacity L-ion Battery Technologies and Market Prospects”, has been recently published.
The major points discussed in the book are the following two.
1) The material technology and the battery technology are both described.
2) Market prospects of L-ion batteries for medium- and large-scale applications, including electric cars.
The lithium resource is plentiful in amount. Lithium is dangerous due to its nature of corrosive and explosive, however. It is an urgent desire to improve the technology to extract lithium from seawater containing an infinite amount of lithium particularly in Japan. The all-solid-state L-ion battery, which copes with the explosive, has been developed to a significant level. Further, the current social circumstance demanding use of clean energy requires acceleration of the research and development of the L-ion battery which stores and discharges electrical energy.
The L-ion battery is expanding its market to the market of medium- to large-scale L-ion batteries for automotive and industrial applications.
Vigorous efforts are focused on development of elemental technologies of L-ion battery such as electrodes and electrolyte, and materials used for them. >> More
The major points discussed in the book are the following two.
1) The material technology and the battery technology are both described.
2) Market prospects of L-ion batteries for medium- and large-scale applications, including electric cars.
The lithium resource is plentiful in amount. Lithium is dangerous due to its nature of corrosive and explosive, however. It is an urgent desire to improve the technology to extract lithium from seawater containing an infinite amount of lithium particularly in Japan. The all-solid-state L-ion battery, which copes with the explosive, has been developed to a significant level. Further, the current social circumstance demanding use of clean energy requires acceleration of the research and development of the L-ion battery which stores and discharges electrical energy.
The L-ion battery is expanding its market to the market of medium- to large-scale L-ion batteries for automotive and industrial applications.
Vigorous efforts are focused on development of elemental technologies of L-ion battery such as electrodes and electrolyte, and materials used for them. >> More
2012年11月9日金曜日
"Characterizing Crash Safety of Cylindrical and Pouch Li-ion Batteries using Computational Modeling"
Battery Safety 2012 – December 6 – 7, LasVegas, NV
- Advancements in System Design, Integration & Testing for Safety & Reliability
"Characterizing Crash Safety of Cylindrical and Pouch Li-ion Batteries using Computational Modeling"- By Elham Sahraei, PhD and Tomasz Wierzbicki, PhD, Massachusetts Institute of Technology
Mechanical integrity of Lithium-ion batteries is one of the most important issues on safety of electric cars, but the least studied topic.
As these batteries are not limited to stationary applications anymore, and are being used in vehicle battery packs, this aspect of their safety is more urgent to be characterized and quantified.
The automotive industry has realized that no battery pack could be rigid enough to ensure zero deformation to battery pack in severe enough crash conditions.
In this research, two common form factors of cylindrical and pouch batteries are characterized for several scenarios of deformation applied to these cells.
A comprehensive testing program was used to characterize the material properties of the cells under combined tension and predominantly compression and shear loading.
Then, computational models of the cells were developed.
The models successfully predict load-deformation trajectory and kinematics of the cell under various types of tests.
Additionally, the models are capable of predicting failure in the jelly-roll of the cell, indicating an internal short-circuit under mechanical deformation.
To compare the pouch and cylindrical cells tested in this research, the cylindrical cell tolerated a load of 5,500N and a deformation of about 7 mm before reaching short circuit,
while the pouch cell tolerated a load of 7,500N and a deformation of 3 mm before failure.
Predicting onset of electric short circuit is a necessary condition for possible thermal runaway.
>> More
- Advancements in System Design, Integration & Testing for Safety & Reliability
"Characterizing Crash Safety of Cylindrical and Pouch Li-ion Batteries using Computational Modeling"- By Elham Sahraei, PhD and Tomasz Wierzbicki, PhD, Massachusetts Institute of Technology
Mechanical integrity of Lithium-ion batteries is one of the most important issues on safety of electric cars, but the least studied topic.
As these batteries are not limited to stationary applications anymore, and are being used in vehicle battery packs, this aspect of their safety is more urgent to be characterized and quantified.
The automotive industry has realized that no battery pack could be rigid enough to ensure zero deformation to battery pack in severe enough crash conditions.
In this research, two common form factors of cylindrical and pouch batteries are characterized for several scenarios of deformation applied to these cells.
A comprehensive testing program was used to characterize the material properties of the cells under combined tension and predominantly compression and shear loading.
Then, computational models of the cells were developed.
The models successfully predict load-deformation trajectory and kinematics of the cell under various types of tests.
Additionally, the models are capable of predicting failure in the jelly-roll of the cell, indicating an internal short-circuit under mechanical deformation.
To compare the pouch and cylindrical cells tested in this research, the cylindrical cell tolerated a load of 5,500N and a deformation of about 7 mm before reaching short circuit,
while the pouch cell tolerated a load of 7,500N and a deformation of 3 mm before failure.
Predicting onset of electric short circuit is a necessary condition for possible thermal runaway.
>> More
L-ion battery monitor chip set for automotive-use L-ion batteries
A chip set has been used for monitoring L-ion battery conditions with the intention of securing battery safe and preventing battery performance deterioration. Toshiba is scheduled to commercialize a new chip set for monitoring L-ion battery conditions.
The new chip set is capable of detecting the residual amounts of battery capacities and troubles, and to equalize the capacity residual amounts of L-ion batteries being used.
The chip set = Monitor IC (TB9141FG) + TMPM358FDTFG (micro-controller) >> More
The new chip set is capable of detecting the residual amounts of battery capacities and troubles, and to equalize the capacity residual amounts of L-ion batteries being used.
The chip set = Monitor IC (TB9141FG) + TMPM358FDTFG (micro-controller) >> More
2012年11月8日木曜日
"High Energy Density Lithium Ion Batteries with Hetero-Hybrid Si/Ge-Carbon Nanotube Anodes"
Lithium Battery Power 2012(11) – December 4 – 5, LasVegas, NV
"High Energy Density Lithium Ion Batteries with Hetero-Hybrid Si/Ge-Carbon Nanotube Anodes"
– By Brian J. Landi, PhD, Rochester Institute of Technology
Combined benefits of LPCVD (low pressure chemical vapor deposition ) or PECVD (plasma enhanced chemical vapor deposition) Si with Ge nanoparticles and carbon nanotube has led to an ultra high capacity anode (>1000 mAh/g electrode), along with enhanced coulombic efficiency.
Full batteries incorporating properly matched hetero-hybrid anodes with conventional cathodes shows cell improvements in gravimetric energy density over state-of-the-art by more than 50%
Recent significant innovations within lithium-ion batteries have propelled the technology into a position in the marketplace far exceeding recent market survey results. Breakthroughs in new battery chemistries, novel electrode and electrolyte materials, system integration for a vast array of mobile and portable applications, from micro medical devices to high-energy/high-power automotive, have paved the roadmap for an emerging market with unlimited potential.
* New chemistries & materials to increase energy & decrease cost
* Meeting the EV challenge: cycle life, power & energy, cost and safety
* Advanced materials for improved electrode & electrolyte performance
* Application driven lithium ion battery development
* Advanced technology for greater safety, reliability and performance
* From novel materials and components to systems design and integration
* Role of nanotechnology in improving power and energy density
>> More
"High Energy Density Lithium Ion Batteries with Hetero-Hybrid Si/Ge-Carbon Nanotube Anodes"
– By Brian J. Landi, PhD, Rochester Institute of Technology
Combined benefits of LPCVD (low pressure chemical vapor deposition ) or PECVD (plasma enhanced chemical vapor deposition) Si with Ge nanoparticles and carbon nanotube has led to an ultra high capacity anode (>1000 mAh/g electrode), along with enhanced coulombic efficiency.
Full batteries incorporating properly matched hetero-hybrid anodes with conventional cathodes shows cell improvements in gravimetric energy density over state-of-the-art by more than 50%
Recent significant innovations within lithium-ion batteries have propelled the technology into a position in the marketplace far exceeding recent market survey results. Breakthroughs in new battery chemistries, novel electrode and electrolyte materials, system integration for a vast array of mobile and portable applications, from micro medical devices to high-energy/high-power automotive, have paved the roadmap for an emerging market with unlimited potential.
* New chemistries & materials to increase energy & decrease cost
* Meeting the EV challenge: cycle life, power & energy, cost and safety
* Advanced materials for improved electrode & electrolyte performance
* Application driven lithium ion battery development
* Advanced technology for greater safety, reliability and performance
* From novel materials and components to systems design and integration
* Role of nanotechnology in improving power and energy density
>> More
Current and Prospective Markets of L-ion Battery Negative-Electrode Materials - 2012 market research report
The 2012 market research of the negative-electrode materials of the L-ion battery (LiB) has been reported by Yano research Institute Ltd.
The world LiB market scale in 2011 is just over 1-Cho Yen, and in 2015 it will be two times or larger than that in 2011. The L-ion batteries are expanding their application from small consumer applications to industrial and automotive applications. The 2011 market scale of the L-ion batteries for automotive applications is a little under 1,000 Oku-Yen. The 2015 market scale will reach around 10 times than in 2011. The 2015 market scale of the L-ion batteries for industrial fields will expand to be around 100 times than in 2011. In the LiB negative-electrode material market, focus will be made on the L-ion batteries for the automotive applications. >> More
The world LiB market scale in 2011 is just over 1-Cho Yen, and in 2015 it will be two times or larger than that in 2011. The L-ion batteries are expanding their application from small consumer applications to industrial and automotive applications. The 2011 market scale of the L-ion batteries for automotive applications is a little under 1,000 Oku-Yen. The 2015 market scale will reach around 10 times than in 2011. The 2015 market scale of the L-ion batteries for industrial fields will expand to be around 100 times than in 2011. In the LiB negative-electrode material market, focus will be made on the L-ion batteries for the automotive applications. >> More
2012年11月3日土曜日
Battery Safety 2012, December 6-7, 2012
- Advancements in System Design, Integration & Testing for Safety & Reliability>> More
Widely publicized safety incidents and recalls of lithium-ion batteries have raised legitimate concerns regarding lithium-ion battery safety. Battery Safety 2012 is conveniently timed with Lithium Battery Power 2012, and will address these concerns by exploring the following topics:
* Application specific battery safety issues affecting battery performance
* Major battery degradation and reliability factors
* Battery management systems
* Commercial cells evaluation and failure analysis
* Advances in testing techniques and protocols
* High throughput testing, automation and modeling for better safety
* Standardization and regulatory issues
Participating Organizations to date (related to Japan):
Honda R&D Americas
Kobelco Research Inst., Inc.
Tohoku University
Tosoh USA
Toyo Systems
Toyohashi University of Technology
Distinguished Faculty: Saburo Tanaka, PhD, Toyohashi University of Technology, National University Corporation
Widely publicized safety incidents and recalls of lithium-ion batteries have raised legitimate concerns regarding lithium-ion battery safety. Battery Safety 2012 is conveniently timed with Lithium Battery Power 2012, and will address these concerns by exploring the following topics:
* Application specific battery safety issues affecting battery performance
* Major battery degradation and reliability factors
* Battery management systems
* Commercial cells evaluation and failure analysis
* Advances in testing techniques and protocols
* High throughput testing, automation and modeling for better safety
* Standardization and regulatory issues
Participating Organizations to date (related to Japan):
Honda R&D Americas
Kobelco Research Inst., Inc.
Tohoku University
Tosoh USA
Toyo Systems
Toyohashi University of Technology
Distinguished Faculty: Saburo Tanaka, PhD, Toyohashi University of Technology, National University Corporation
2012年11月2日金曜日
Results for second quarter of 2012 for Clean Energy Patent Growth Index
Clean Energy部門の特許推移 (米国) – 2nd Quarter 2012
* GRANTED patents reach new high
* Toyota remains champ due to fuel cell and hev patents
* Fuel cell, solar and wind patents Jump
* US Leads-JAPAN Tops Others
* California leads states followed by New York
The Clean Energy Patent Growth Index was again at record levels in the second quarter, topping the previous high mark set in the previous quarter.
Wind, Solar, Hybrid/Electric Vehicle, Biomass/Biofuel patents all reached new highs and
Toyota held onto the quarterly Clean Energy patent Crown for the second straight quarter, after an absence since 2009.
The US led all others on the strength of California, New York and Michigan.
Japan led all other countries, followed by Germany.”
Fuel Cells again led the other components of the CEPGI in the second quarter, but Solar technology patents continued to follow on its heels.
Fuel Cells patents were up 32 patents from the first quarter at 264 and were up 59 over a year prior.
Solar patents (188) continued to dominate the remaining components of the CEPGI at 211, up 23 over the previous quarter and up 89 over the second quarter of 2011.
>> More
* GRANTED patents reach new high
* Toyota remains champ due to fuel cell and hev patents
* Fuel cell, solar and wind patents Jump
* US Leads-JAPAN Tops Others
* California leads states followed by New York
The Clean Energy Patent Growth Index was again at record levels in the second quarter, topping the previous high mark set in the previous quarter.
Wind, Solar, Hybrid/Electric Vehicle, Biomass/Biofuel patents all reached new highs and
Toyota held onto the quarterly Clean Energy patent Crown for the second straight quarter, after an absence since 2009.
The US led all others on the strength of California, New York and Michigan.
Japan led all other countries, followed by Germany.”
Fuel Cells again led the other components of the CEPGI in the second quarter, but Solar technology patents continued to follow on its heels.
Fuel Cells patents were up 32 patents from the first quarter at 264 and were up 59 over a year prior.
Solar patents (188) continued to dominate the remaining components of the CEPGI at 211, up 23 over the previous quarter and up 89 over the second quarter of 2011.
>> More
New facility for producing LiB anode material
Bio Hard Carbon Co., Ltd. will build a facility for producing bio hard carbon to be used as the anode material of the lithium ion battery (LiBs). The bio hard carbon is derived from the plant, for example, coconut shell. The company intends to find HV and EV markets. The facility will start its operation in October 2013. The annual production of the bio hard carbon: 1,000 tons. The amount of capital investment: About 30 billion Yen. More >> Please contact us at infonenryo@fcpat-japan.com
2012年11月1日木曜日
Unique Lithium-air battery – Safely and stably operates at high energy density
A unique lithium-air battery has been developed. Its safe and stable operation was confirmed. Large capacity (10000 mAh/g), reversible charge/discharge operations were performed in atmosphere. Such operations had been impossible.
The lithium-air (Li-air) battery developed this is uniquely featured by:
1) Electrolytic solution = ionic liquid, and air electrode = carbon nanotube gel.
2) Gel air electrode has a three-dimensional structure including electron conduction, ion conduction and air-diffusion paths.
The Li-air battery, if realized, would be capable of driving the automobile in long-distance. It has a potential to substitute itself for the hydrogen fuel cell. >> More
The lithium-air (Li-air) battery developed this is uniquely featured by:
1) Electrolytic solution = ionic liquid, and air electrode = carbon nanotube gel.
2) Gel air electrode has a three-dimensional structure including electron conduction, ion conduction and air-diffusion paths.
The Li-air battery, if realized, would be capable of driving the automobile in long-distance. It has a potential to substitute itself for the hydrogen fuel cell. >> More
2012年10月31日水曜日
Lithium Battery Power 2012(10) – December 4 – 5, LasVegas, NV
- Advances in Lithium Ion Battery Technologies for Commercial & Military Applications - >> More
"Energy Storage 2030: A Technology Roadmap" by Kai-Christian Möller, PhD, Fraunhofer Institute for Chemical Technology
For lithium-ion batteries, that are now considered as the key technology for the dissemination of electro mobility, a detailed roadmap will be given that has been developed under guidance of Fraunhofer by experts from industry and academic research within the innovation Alliance Lithium-Ion-Battery LIB2015", supported by the German Federal Ministry of Education and Research.
The roadmap will classify the expected technological developments such as cell components, resulting cell types and their expected properties for the horizon 2012 ・2030. A chronological ranking of the availability and the properties of materials momentarily under development will be the basis for a road map for the development of effective batteries for the application in electric vehicles in future.Last but not least the chances for competitive technologies such as fuel cells and emerging technologies such as lithium metal batteries and redox-flow batteries will be discussed.
"Energy Storage 2030: A Technology Roadmap" by Kai-Christian Möller, PhD, Fraunhofer Institute for Chemical Technology
For lithium-ion batteries, that are now considered as the key technology for the dissemination of electro mobility, a detailed roadmap will be given that has been developed under guidance of Fraunhofer by experts from industry and academic research within the innovation Alliance Lithium-Ion-Battery LIB2015", supported by the German Federal Ministry of Education and Research.
The roadmap will classify the expected technological developments such as cell components, resulting cell types and their expected properties for the horizon 2012 ・2030. A chronological ranking of the availability and the properties of materials momentarily under development will be the basis for a road map for the development of effective batteries for the application in electric vehicles in future.Last but not least the chances for competitive technologies such as fuel cells and emerging technologies such as lithium metal batteries and redox-flow batteries will be discussed.
2012年10月29日月曜日
8th Li Battery Power & 3rd Battery Safety 2012
「8th Lithium Battery Power」 & 「3rd Battery Safety 2012」がDecember 4 – 6に LasVegas, NVで開催される。45 presentations があり、over 80 organizations が参加する（現時点で）。
>> More details and exactly
Participating Organizations to date:
AIST
Honda R&D Americas
Kobelco Research Inst., Inc.
Tohoku University
Tosoh USA
Toyo Systems
Toyohashi University of Technology
Distinguished Faculty: Saburo Tanaka, PhD, Toyohashi University of Technology, National University Corporation
2012年10月24日水曜日
Lithium Battery Power 2012(9) – December 4 – 5, LasVegas, NV
- Advances in Lithium Ion Battery Technologies for Commercial & Military Applications -
>> More
"Global Lithium-Ion Batteries Market" by Vishal Sapru, Frost & Sullivan, Inc.The presentation will focus on the global market size of the lithium-ion batteries covering consumer, industrial and automotive applications.
The presentation will highlight potential opportunities for lithium-ion batteries in renewable applications, utilities among others.
The focus will also be on some of the emerging chemistries that can be a competitor for lithium-ion in the future.
Talk about mega trends and emerging market.
**************************
Battery Safety 2012, December 6-7, 2012
- Advancements in System Design, Integration & Testing for Safety & Reliability -
"Cells' and Battery Safety in High-End Applications" by Frank Puglia, Yardney Technical Products
Yardney batteries are used in multitude of air, land, sea, and space applications and must meet very stringent performance requirements.
Pushing the boundaries of performance of batteries requires concerted efforts dedicated to understanding and implementing battery safety.
The safety-related work at Yardney starts at the fundamental understanding level and extends to cell design improvements as well as the cell pack and battery level developments.
This presentation summarizes the current safety-related advancements at Yardney.
>> More
The presentation will highlight potential opportunities for lithium-ion batteries in renewable applications, utilities among others.
The focus will also be on some of the emerging chemistries that can be a competitor for lithium-ion in the future.
Talk about mega trends and emerging market.
**************************
Battery Safety 2012, December 6-7, 2012
- Advancements in System Design, Integration & Testing for Safety & Reliability -
"Cells' and Battery Safety in High-End Applications" by Frank Puglia, Yardney Technical Products
Yardney batteries are used in multitude of air, land, sea, and space applications and must meet very stringent performance requirements.
Pushing the boundaries of performance of batteries requires concerted efforts dedicated to understanding and implementing battery safety.
The safety-related work at Yardney starts at the fundamental understanding level and extends to cell design improvements as well as the cell pack and battery level developments.
This presentation summarizes the current safety-related advancements at Yardney.
2012年10月23日火曜日
Small fuel cells, some examples in Japan
The DMFC (direct methanol fuel cell) is a typical example of the small fuel cell. Some types of the DMFC have been commercially available worldwide. The volume and energy density of the fuel cell are both much higher than of other battery cells.
The small fuel cells will be used as the power sources in places where no power infrastructure is installed and the power infrastructure installed does not reach, and emergency power sources in disaster cases. Particularly in Japan, much interest has been placed on how to secure electric power sources in emergency situations after the 3.11 earthquake/tsunami disaster and the Fukushima nuclear meltdown. There is a strong demand for the small fuel cells in the market. >> More
The small fuel cells will be used as the power sources in places where no power infrastructure is installed and the power infrastructure installed does not reach, and emergency power sources in disaster cases. Particularly in Japan, much interest has been placed on how to secure electric power sources in emergency situations after the 3.11 earthquake/tsunami disaster and the Fukushima nuclear meltdown. There is a strong demand for the small fuel cells in the market. >> More
2012年10月21日日曜日
Hitachi’s DMFC, advancing toward the next step
Hitachi has revealed two DMFC technologies recently.
One of them concerns improvements of the high polymer electrolytic membrane. The result is that the methanol penetration of the electrolytic membrane is reduced half and the DMFC power generation efficiency is improved 5%.
The other concerns catalyst technologies to be applied to the fuel and air electrodes of the DMFC. Those catalyst technologies are free from platinum. The result is that the DMFC incorporating the technologies is reduced by 45% when compared with those using platinum.
Hitachi and CPI (The Centre for Process Innovation Ltd.) have signed an agreement to industrialize the DMFC in England. In the agreement, Hitachi will develop the DMFC and CPI will carry out the demonstration test of the developed DMFC. Hitachi has a long history to develop the DMFC, since 2001. > More
One of them concerns improvements of the high polymer electrolytic membrane. The result is that the methanol penetration of the electrolytic membrane is reduced half and the DMFC power generation efficiency is improved 5%.
The other concerns catalyst technologies to be applied to the fuel and air electrodes of the DMFC. Those catalyst technologies are free from platinum. The result is that the DMFC incorporating the technologies is reduced by 45% when compared with those using platinum.
Hitachi and CPI (The Centre for Process Innovation Ltd.) have signed an agreement to industrialize the DMFC in England. In the agreement, Hitachi will develop the DMFC and CPI will carry out the demonstration test of the developed DMFC. Hitachi has a long history to develop the DMFC, since 2001. > More
Lithium Battery Power 2012(8) – December 4 – 5, LasVegas, NV
"Nanoporous Substrate materials for Rechargeable Li-Air Batteries" by Hua Cheng, PhD, Newcastle University
The rechargeable Li-air battery has a key role to play for the storage of renewable energy and in future electric vehicles.
But it suffers from cycling fading and low rate capability; cathode materials (including substrate) were identifies as one of main responsible sources.
Here we compare several potential cathode substrates with widely used carbon materials based on results from cycling studies and FTIR measurement. Ag and TiC show promising properties.
Battery Safety 2012, December 6-7, 2012- Advancements in System Design, Integration & Testing for Safety & Reliability
"Mechanisms of catastrophic Battery Failure" by Nicholas Willard, University of Maryland
Battery failure can be generalized into two broad categories, slow progressive degradation and immediate catastrophic failure.
To date, most theoretical work has been performed on the former with little work focusing on how to model, predict, or mitigate the onset of catastrophic failure.
This presentation will explain the root cause mechanisms that lead to catastrophic failure and will offer solutions on how to better predict and handle this problem
Heslin Rothenberg Farley & Mesiti P.C. Announces Shine-On Solar Edition Of Clean Energy Patent Growth Index
* Solar pv at new high in 2011
* General electric leads pv for 2011
* Solar thermal owners remain scattered
ALBANY, NY—Heslin Rothenberg Farley & Mesiti P.C. is pleased to announce the Shine-On Solar edition of the Clean Energy Patent Growth Index (CEPGI) by the firm’s Cleantech Group.
The Shine On Solar edition of the CEPGI provides an indication of the trends in innovative activity in the Solar energy sector.
Victor Cardona, Co-chair of the firm’s Cleantech Group stated, “Solar patents in 2011 reached levels 60% higher than 2010 and about three times those of 2009.
Solar vastly outperformed the other non-Fuel Cell sectors after hitting a record low in the third quarter of 2008.
Solar PV patents spiked in 2011 to record levels with Second Generation Solar PV patents topping the other generations of PV technology.
General Electric led the other Solar PV patent owners while Solar Thermal patents in 2010 were granted to 28 separate entities all with one patent each.”
The Shine On Solar edition analyzes the Solar sector and illustrates where patents are being granted within the Solar arena. This edition of our Shine On Solar edition analyzes solar energy trends in general with an emphasis on solar patenting trends in 2011.
As depicted below, Solar technology patents in continued to shine- reaching levels nearly three times that of 2009 and vastly outperforming the other non-Fuel Cell sectors after hitting a record low in the third quarter of 2008. >> More
* General electric leads pv for 2011
* Solar thermal owners remain scattered
ALBANY, NY—Heslin Rothenberg Farley & Mesiti P.C. is pleased to announce the Shine-On Solar edition of the Clean Energy Patent Growth Index (CEPGI) by the firm’s Cleantech Group.
The Shine On Solar edition of the CEPGI provides an indication of the trends in innovative activity in the Solar energy sector.
Victor Cardona, Co-chair of the firm’s Cleantech Group stated, “Solar patents in 2011 reached levels 60% higher than 2010 and about three times those of 2009.
Solar vastly outperformed the other non-Fuel Cell sectors after hitting a record low in the third quarter of 2008.
Solar PV patents spiked in 2011 to record levels with Second Generation Solar PV patents topping the other generations of PV technology.
General Electric led the other Solar PV patent owners while Solar Thermal patents in 2010 were granted to 28 separate entities all with one patent each.”
The Shine On Solar edition analyzes the Solar sector and illustrates where patents are being granted within the Solar arena. This edition of our Shine On Solar edition analyzes solar energy trends in general with an emphasis on solar patenting trends in 2011.
As depicted below, Solar technology patents in continued to shine- reaching levels nearly three times that of 2009 and vastly outperforming the other non-Fuel Cell sectors after hitting a record low in the third quarter of 2008. >> More
2012年10月10日水曜日
New platinum-ruthenium alloy catalyst, Effectively removes carbon monoxide in hydrogen gas
A new alloy catalyst has been developed. An alloyness of the platinum-ruthenium (Pt-Ru) alloy catalyst (a degree of homogeneous mixture of platinum and ruthenium) is increased to a maximum level. The resultant catalyst is stable and has high catalytic activity. Where a trace of carbon monoxide is contained in the hydrogen gas as the fuel to the ENEFARM (residential PEFC CHP system in Japan), the CHP system is efficiently operable.
Additionally, a process in which the catalyzing function appears and the reason why the catalyst highly efficiently functions have been clearly explained with the aide of the tools, including the XAFC station and others in Photon Factory of High Energy Accelerator Research Organization. >> More
Additionally, a process in which the catalyzing function appears and the reason why the catalyst highly efficiently functions have been clearly explained with the aide of the tools, including the XAFC station and others in Photon Factory of High Energy Accelerator Research Organization. >> More
2012年10月6日土曜日
Small hydrogen fuel cell – Unique hydrogen generation sheet
Developed by: ROHM, Aquafairy Corporation, and Kyoto University.
A unique small hydrogen fuel cell (FC) battery has been developed.
The battery is removably coupled with a sheet-like plate as the hydrogen source (see Fig. 1). The uniqueness resides in the use of the sheet-like plate. Calcium hydride is solidified into the sheet-like plate. To generate hydrogen, a simple action to drip water on the sheet is only required. The calcium-hydride solid-state sheet stably generates hydrogen when water drips on the sheet. The construction to ensure the stable hydrogen generation is based on the proprietary technology. The FC battery coupled with the hydrogen generation sheet is light in weight and high in output power. The hydrogen generation sheet has a volume of 3cc (38 x 38 x 2 mm3). >> More
A unique small hydrogen fuel cell (FC) battery has been developed.
The battery is removably coupled with a sheet-like plate as the hydrogen source (see Fig. 1). The uniqueness resides in the use of the sheet-like plate. Calcium hydride is solidified into the sheet-like plate. To generate hydrogen, a simple action to drip water on the sheet is only required. The calcium-hydride solid-state sheet stably generates hydrogen when water drips on the sheet. The construction to ensure the stable hydrogen generation is based on the proprietary technology. The FC battery coupled with the hydrogen generation sheet is light in weight and high in output power. The hydrogen generation sheet has a volume of 3cc (38 x 38 x 2 mm3). >> More
2012年9月27日木曜日
Toyota, new electrolyte for all-solid-state Li-ion battery
Toyota has developed a new electrolyte for all-solid-state lithium
ion battery.
The output density of the battery using the new electrolyte is
increased to be 5 times that of the previous one. The electrolyte contains
expensive germanium. Its practical use requires further development of some other
material than germanium. Refer to here.
All-solid-state lithium ion battery is free from danger of fire and
explosion.
AIST and Toyota cooperatively and already manufactured
the prototype of the all-solid state Li-ion battery in 2010. > More
2012年9月24日月曜日
Solar energy technology-5 (artificial photosynthesis)
Artificial photosynthesis based water-splitting hydrogen generation at high efficiency
More> here.
Water-splitting hydrogen generation technology using solar energy.
A high performance oxide-semiconductor photoelectrode, newly
developed, has a multilayered structure.
A carbonate electrolytic solution of high concentration.
A multiple of the photoelectrodes are stacked in the electrolytic
solution.
The solar energy conversion efficiency achieved is
1.35%, two times of the conventional. March 2012 More> here.
2012年9月21日金曜日
Solar energy technology-4 (artificial photosynthesis)
Oxygen generation mechanism is elucidated first in the
world.
Prof. Nobuo Kamiya, Osaka City University, successfully elucidated exact chemical
compositions and atom arrangements of the metal-oxygen cluster in
the photosynthesis process of a plant (April 2012) .
The elucidation of this oxygen generation mechanism is the first in the
world.
The successful study result will accelerate development of the
artificial photosynthesis and greatly contribute to the solutions to energy,
environment and food issues. *Osaka City University: http://www.osaka-cu.ac.jp/ja
In the plant’s photosynthesis process, two photosystems operate: a
photosystem I (PSI) to reduce carbon dioxide gas and a photosystem II (PSII) to
generate oxygen. It has been said that
the oxygen generation reaction is performed in the metal-oxygen clusters
of the PSII.
The overall structure of the PSII is illustrated in Fig. 1. As illustrated, the PSII is a compound
consisting of two monomers. The PSII
receives sunlight and splits water to generate oxygen molecules and at the same
time to release electrons.
The electrons are used to transform carbon dioxide into
glucose.
In the compound structure, the oxygen generation centers are located
at two encircled positions.
Fig. 1 Overall structure of PSII compound
It has been said
that PSII oxygen generation reaction progresses in the metal-oxygen
cluster in which four manganese atoms (Mn) and one calcium atom (C) are coupled
together by a plurality of oxygen atoms (O).
No one has known exact chemical compositions and atom arrangements
of the metal-oxygen cluster, however.
Fig. 2 Chemical structure of oxygen generation
center
Purple: Manganese atoms
Yellow: Calcium atom
Red: Oxygen atoms coupling metal atoms together
Orange: Water Oxygen atoms
Co-Sponsors:
* Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University
* Strategic International Research Cooperative Program (Finland-Japan), JST
* Academy of Finland
2012年9月11日火曜日
Energy Saving Technology-4 (SiC)
Another All-SiC
Inverter was developed by Mitsubishi Electric.
Mitsubishi
Electric Corporation developed a prototype forced-air-cooled three-phase 400V
output inverter with all-silicon carbide (SiC) power modules that has a power
density of 50kVA per liter. The
inverter is expected to contribute to smaller and lighter power-electronics
equipment in automotive and industrial applications, among others.
To increase
power density, … . To achieve high
current density, … .
More> http://p.tl/CXgW
Energy Saving Technology-3 (SiC)
All SiC Inverter of 0.5 liters volume successfully drives a 15 kW
3-phase motor.
All SiC Inverter:
* Volume: 500 cm3 (0.5 liters) = 1/10 to 1/20 of Si-IGBT
inverter commercially available
* Output power density: 30 kW/liter (30
W/cc) (= power conversion value of the inverter for each volume)
* Cooling type: full air-forced cooling
* Power conversion efficiency of the inverter is about 99%.
* Inverter continuously drives a motor of 15 kW output.
One of the key features of SiC is that SiC is operable at high temperature
of 200 degrees of C. The feature
results in significant size reduction of the SiC incorporated inverter. September
2011, NEDO, FUPET
More> rvtpe01@hotmail.co.jp
2012年9月9日日曜日
Solar energy technology-3 (artificial photosynthesis)
An artificial photosynthesis system, developed anew, is capable of storing chemical energy of which the amount is in excess of an amount of the energy generated through the photosynthesis of a plant. The artificial photosynthesis system enables itself to synthesize organic materials by using solar energy.
1) Molecules of the material, which are capable of storing high energy of light at low temperature (originally developed), are fixed in and at nano-holes of a unique material.
2) Molecules of the material, which is originally developed in 1) above, together with the molecules, which are easy to react with oxygen, are fixed in and at the nano-holes of the unique material referred to 1) above. It is confirmed that chemical reaction is performed at high efficiency by using solar energy. Osaka University, Prof. Fukusumi, April 2012. More > rvtpe01@hotmail.co.jp
1) Molecules of the material, which are capable of storing high energy of light at low temperature (originally developed), are fixed in and at nano-holes of a unique material.
2) Molecules of the material, which is originally developed in 1) above, together with the molecules, which are easy to react with oxygen, are fixed in and at the nano-holes of the unique material referred to 1) above. It is confirmed that chemical reaction is performed at high efficiency by using solar energy. Osaka University, Prof. Fukusumi, April 2012. More > rvtpe01@hotmail.co.jp
Energy Saving Technology-2 (SiC)
A unique structure of a defect of the SiC crystal, called a screw
dislocation, has been shown through the evaluation of the structure of the
screw dislocation, which is made by using LACBED (large-angle convergent-beam
electron diffraction).
As known, the SiC-based power device is one of the next generation
power devices.
The screw dislocation is known as one of the defects that the SiC
crystal has.
An inverter including the SiC power device having such a defect
inevitably suffers from degradation of its performance.
It has been recognized that the direction in which the screw
dislocation extends is the same as of the displacement of the crystal.
The screw dislocation extends within and through the crystal.
It has been indicated that the screw dislocation is a unique
dislocation in that it contains a displacement having the direction (axis “a”)
vertical to the axis “c” along which the defect extends, in addition to the
axis “c”.
Such a defect has been inexplicitly been explained, however. September, 2012, JFCC, TOYOTA, and TOYOTA Central R&D Labs
To learn more,
feel free to contact us at rvtpe01@hotmail.co.jp
2012年9月7日金曜日
Solar energy technology-2 (artificial photosynthesis)
Another aritificial photosynthesis system for generating a formic acid by using water and CO2 under sunlight, developed by Panasonic. The system is entirely constructed with inorganic materials. Its construction is simple.
The solar energy conversion efficiency is 0.2%, comparable with that of the photosynthesis of a plant. The inorganic material to be synthesized is selectable. Photoelectrode = nitride semiconductor, and electrode for generating the organic material = metal catalysis. Panasonic, July 2012
To learn more, feel free to contact us at rvtpe01@hotmail.co.jp
Co-Sponsors:
* Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University
* Strategic International Research Cooperative Program (Finland-Japan), JST
* Academy of Finland
* Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University
* Strategic International Research Cooperative Program (Finland-Japan), JST
* Academy of Finland
Energy Saving technology-1 (SiC)
Significant energy-saving effect of SiC power devices. Energy consumption saved is equivalent to the power of 7 to 8 nuclear power plants.
As known, the power devices are currently used in a variety of fields, including air conditioners, automobiles and power plants. If the current power devices, which are used in Japan, are all replaced with SiC power devices, the energy consumption saved is equivalent to the power of 7 to 8 nuclear power plants (This is shown by the calculation). The SiC power devices were incorporated into the inverters of the railway vehicle being under test, by Mitsubishi Electric last autumn, and are called next generation power devices. The SiC power device can withstand much higher voltage and much larger current when compared with conventional silicon type power device, and suffers from significantly much less power loss than of the conventional power device.
To learn more, feel free to contact us at rvtpe01@hotmail.co.jp
2012年9月6日木曜日
Solar energy technology-1 (artificial photosynthesis)
The artificial photosynthesis converts solar energy into an intended organic material and stores it. The technology will provide excellent, effective solutions to environmental, energy and food issues.
Toyota succeeded in continuously synthesizing a formic acid by using water and CO2 under sunlight. CO2 reduction photocatalysis and photocatalysis are combined with a proton exchange membrane interlocated between them. The solar energy conversion efficiency is 0.04%, about 1/5 of that of the photosynthesis of a plant. TOYOTA, Semtember 2011. More > rvtpe01@hotmail.co.jp
Toyota’s power supply systems FCV bus
Toyota developed a power supply system for supplying electric power from an FCV (fuel cell vehicle) bus to an external load, for example, home appliances. The system contains two AC outlets (AC100 V, 1.5 kW) and is capable of supplying a maximum of 3 kW power for 100 hours or longer. Toyota is developing another power supply system (V2H system), which supplies power from the FCV bus through electric wires installed in the building. The V2H system has a maximum of 9.8 kW output power and is capable of supplying power continuously for 50 hours, which is equivalent to the lighting power of around 5 days in a gym. To learn more, feel free to contact us at rvtpe01@hotmail.co.jp
2012年8月9日木曜日
Solar energy technologies for next-generation energy
In my view as the result of reading recent technical news in Japan,
one of the next -generation major energy sources is the solar energy.
Some artificial photosynthesis technologies have been newsed
recently. The technologies reported in those
items of news are still around the stage of empirically showing the possibility
to practical use of the technologies.
Those technologies emerged from AIST, Osaka University, Toyota Central R
& D Labs., and Panasonic.
In the view of utilizing the solar energy, the
magnesium fuel cell is the most advanced in technology. The Mg fuel cell has been substantially in
the practical use stage. See http://p.tl/Xjy7 and http://p.tl/GmMA
2012年8月4日土曜日
Hydrogen refueling station collocating with gas station to be demonstration-tested
JX Nippon Oil & Energy Corporation will conduct a hydrogen refueling demonstration test during a period from Feb. 2013 to March 2016. In the test, a hydrogen refueling station collocates with a normal gas station. The test will grasp and understand problems through actual hydrogen refueling service towards the 2015 FCV commercialization. Two ways to refuel the FCVs with hydrogen gas will be employed; one way is based the self-refueling and the other way is based on the serviceman refueling. This type of demonstration test is the first in Japan. Japan is behind schedule in hydrogen refueling infrastructure installation. The installation retardation is due to some legal controls. The government has announced to remove those legal controls and also to build a number of hydrogen refueling stations. >> More
2012年7月30日月曜日
ENEFARM
As known, ENEFARM generally stands for every type of residential FC (fuel cell) CHP system manufactured in Japan. It consists of two types: one uses the PEFC (polymer electrolyte fuel cell) for the fuel cell unit and the other, the SOFC (solid oxide fuel cell). The SOFC is called the next generation fuel cell, and has many advantages over the PEFC. The advantages are high efficiency, simple structure, high endurance, a variety of fuels available, etc. The SOFC ENEFARM cogenerators were launched in 2011.
The ENEFARM FC cogenerators are still in the early stage market, which started in 2010. Its price is still high, 2,500,000 yen (x 1/about 80 = usd)s/system. Users may use the subsidy up to 700,000 yen. The price is scheduled to be halved or lower, for example, around 1,000,000 yen in 2015. The technical development aggressively progresses for the price reduction. >> More
The ENEFARM FC cogenerators are still in the early stage market, which started in 2010. Its price is still high, 2,500,000 yen (x 1/about 80 = usd)s/system. Users may use the subsidy up to 700,000 yen. The price is scheduled to be halved or lower, for example, around 1,000,000 yen in 2015. The technical development aggressively progresses for the price reduction. >> More
2012年7月25日水曜日
Hydrogen fueling station facilities, their semi-full-fledged installation starts soon
Development of hydrogen-based fuel cell vehicles (FCVs) is continuing worldwide toward 2015 FCV commercialization.
Semi-full-fledged installation of hydrogen fueling (H-fueling) station facilities will start soon in Japan.
The Japanese government has decided to take a measure to install H-fueling station facilities that are for supplying hydrogen gas to FCVs. METI will amend the ordinance of the High Pressure Gas Safety Law so as to raise the upper limit of hydrogen gas pressure to 70 MPa, from 35 Mpa. The amendment will be made by this autumn. If the 70 MPa circumstance has been set up, the investors will actively invest in this field. Further, METI has a plan to use a government subsidy to promote the building of H-fueling station facilities. It will request the subsidy budget targeting 1,000 hydrogen stations for the coming fiscal budget. >> More
Semi-full-fledged installation of hydrogen fueling (H-fueling) station facilities will start soon in Japan.
The Japanese government has decided to take a measure to install H-fueling station facilities that are for supplying hydrogen gas to FCVs. METI will amend the ordinance of the High Pressure Gas Safety Law so as to raise the upper limit of hydrogen gas pressure to 70 MPa, from 35 Mpa. The amendment will be made by this autumn. If the 70 MPa circumstance has been set up, the investors will actively invest in this field. Further, METI has a plan to use a government subsidy to promote the building of H-fueling station facilities. It will request the subsidy budget targeting 1,000 hydrogen stations for the coming fiscal budget. >> More
2012年7月5日木曜日
Electric field observation at atomic scale by electron microscope
A new and revolutionary technology is presented that is capable of observing “electric fields” at atomic scale by use of the electron microscope. This is the world’s first observing technology using the electron microscope.
The new observing technology will strongly assist the development of new materials particularly for energy devices, such as catalyst materials to be used by batteries and fuel cells. The observing technology is featured by a quartered detector of the scanning transmission electron microscope (STEM) and a new and creative analyzing method for analyzing the data output from the detector.
>> More
The new observing technology will strongly assist the development of new materials particularly for energy devices, such as catalyst materials to be used by batteries and fuel cells. The observing technology is featured by a quartered detector of the scanning transmission electron microscope (STEM) and a new and creative analyzing method for analyzing the data output from the detector.
>> More
2012年6月7日木曜日
New FC platinum-reduction technology-2
The oxygen reduction reaction activity of the electrodes of the fuel cell is low.
To increase the reaction activity, a large amount of platinum has been used for the electrode material of the fuel cell. How to reduce the amount of the platinum used is one of the problems to be urgently solved.
A platinum – cerium oxide (auxiliary catalyst) nano-composite material presented one of the solutions to the problem. It exhibits an excellent oxygen reduction reaction activity. The reaction activity is higher than of the platinum.
A mechanism to increase the reaction mechanism in the auxiliary catalyst was experimentally elucidated through the in-situ measurement using X-rays that are radiated by utilizing Spring-8 (= Super Photon ring-8, the world's largest synchrotron radiation facility).
The successful elucidation will pave the way of developing electrode materials having further enhanced properties. >> More
2012年6月5日火曜日
New FC platinum-reduction technology-1
Metal nano-particles coagulate with
one another. Electrode catalyst activity decreases. This necessitates use of a large amount of rare metal (e.g.,
platinum). Reduction of platinum used is
a crying need in this field.
One solution has successfully been
presented. It is a metal nano-particle
solubilizing technology.
The new technology succeeded in
increasing the catalytic activity at the catalyst carried electrodes of the fuel
cell by 15 times when compared with the conventional technology.
Reducing the use amount of platinum to 1/100 will be
within the capability of the technology.
>> More
2012年5月30日水曜日
H2FC major defects
In Japan, some types of the H2FC have entered the early market phase। At least 20,000 ENEFARM (residential CHP) systems are now operating at ordinary homes। Fuel cell vehicles (FCVs) will be launched in around 2015 in the world। Those types of the H2FC involve the following serious problems: 1) The price is too high। 2) Large-scale infrastructure such as hydrogen stations is essentially needed. 3) Hydrogen embrittlement problem is not yet solved.4) Serious problems are still alive in the generation, storage and transportation of hydrogen. >> More
MgFC major advantages
MgFC has the following advantages. It seems to me that MgFC may relegate H2FC to a supporting role.
1) There is no need of the infrastructure to supply fuel to the fuel cell.
2) Mg as fuel can be transported in safe and simple way.
3) The structure of MgFC is simple, and its price is negligibly low compared to that of the hydrogen fuel cell (H2FC).
4) MgFC device per se is light in weight and high in safety.
5) The service life of the MgFC is almost semi-permanent when considered in practical use। 6) The Mg resource is almost limitless। >> More
1) There is no need of the infrastructure to supply fuel to the fuel cell.
2) Mg as fuel can be transported in safe and simple way.
3) The structure of MgFC is simple, and its price is negligibly low compared to that of the hydrogen fuel cell (H2FC).
4) MgFC device per se is light in weight and high in safety.
5) The service life of the MgFC is almost semi-permanent when considered in practical use। 6) The Mg resource is almost limitless। >> More
2012年5月29日火曜日
Magnesium Fuel Cell (MgFC)
Flame-retardant magnesium (Mg-Al-Ca) alloy that is specially designed is used for making the body of the AeroTrain #6.During investigating the properties of the flame-retardant magnesium alloy, it was discovered that the seawater corrosion resistance of the magnesium alloy is larger than that of the conventional flame-retardant magnesium. It seems that the discovery moved him and he accelerated his development of the magnesium fuel cell (MgFC). The high seawater corrosion resistance leads to avoidance of the natural discharge problem, which is inherent to the fuel cell. The flame-retardancy of the magnesium alloy is at such a level as to allow the magnesium alloy to be welded in the air. The MgFC developed does not almost need catalyst. The price of it is negligible compared to that of the hydrogen fuel cell (H2FC). The MgFC as the emergency-use fuel cell has reached practical levels. >> More
2012年5月28日月曜日
Tunami and Magnesium Fuel Cell
Prof. Kohama has experienced "Japan 2011 earthquake/tsunami disaster". He saw real disaster scenes with his own eyes. Power outage occurred. In the situation, time is critical, but victims could not know tsunami/earthquake information. This partly led to expansion of the damages. The following crossed his mind: If electric power supply could be continued for several days, the damage expansion would be minimized. Victims could get moment-to-moment changing disaster conditions from broadcasts. Airconditioners, if operable, would help patients and sick persons keep their health conditions good. This would spur him on to accelerate his MgFC development having thus far been made, I suppose. For an example of MgFC use, see the picture in previous article. More
2012年5月22日火曜日
AeroTrain
The high-speed transport system has wings, and flies at the height of 10 cm above the ground and at the speed of 500 km/h, while moving within and along a train guideway, which is U-shaped in cross section. The transport system uses well combination of the principle of flotation and the ground effect#3. This causes the train to take a minimum running resistance, and results in reduction of the energy consumption by the train and allowing use of the small drive source of the train. In addition, flame-retardant magnesium alloy (Mg-Al-Ca, developed by AIST) is used for making the train body. Use of the alloy also contributes to the running resistance reduction. Those reasons enable the electric power generated by renewable-energy based power generators, such as solar battery and wind power to drive the train #4.
>> More
>> More
2012年5月21日月曜日
Mg Soleil project
Pro. Kohama conceives a "Mg Soleil project" and is promoting the project. He has a conclusion that the primary energy available on the earth is the solar energy. He investigated the entire energy available on the earth, including fossil fuels, nuclear, and renewable energy and others, and calculatively reached the conclusion that the solar energy is over 60% of the earth's available energy. To gather the solar energy the desert is the best place. The reason is that the solar energy density is much higher, three times, than in Japan#2A. Magnesium is an almost limitless resource.Solar furnaces are placed on the desert, gathered magnesium compound is refined to produce magnesium metal, and it is transported as metal masses to consumption areas. In the consumption area, the magnesium metal is used as structural materials and converted into electrical energy. To the end, he considers that it is essential to develop Mg refining technology and Mg fuel-cell technology. AeroTrain uses specially designed flame retardant magnesium for its body. This is an example of the application of Mg to the structural material.
>> More
>> More
Next generation high-speed transport system
Sendai having suffered from Japan 2011 earthquake/ tsunami disaster is steadily and powerfully moving towards its reconstruction. In this situation, large-scale technology development is now progressing. The technology concerns the next-generation high-speed transport system (AeroTrain)*1.
The developer is Prof. Kohama (Tohoku University, New Industry Creation Hatchery Center). The performances of AeroTrain are far superior to those of Shinkansen and Linear Motor Car. It should be noted that the transport system is designed based on the concept of environmental friendliness. The environment-friendliness is his mission as a scientist , and also his technical idea. The transport system will go into real service in 2020.
The research/development of the AeroTrain is being made in part of the NEDO project.
During and in connection with the development, a magnesium fuel cell was developed. This is a shocking fuel cell. There is no doubt that his tragic experience of the earthquake/tsunami disaster gave a great impulse to him for the MgFC development. The MgFC has great advantages when using in emergency situations. >> More
2012年4月27日金曜日
Nihon steel corp. raises a lawsuit against Posco on the reason of “grain-oriented magnetic steel sheet” patent infringement
2012年4月7日土曜日
Artificial-photosynthesis basis hydrogen generation system
- Light-to-hydrogen conversion efficiency is improved two times, 1.35% -
Writing of the "Technology Details" on this article has been completed. To read more, please feel free to contact us.
***********************
H2 fuel cells still involve many problems to be solved. A typical problem of them is “hydrogen brittlement”. The fuel cells have been much developed and some types of them have entered the early market phase even under the situation, however. In Japan the residential PEFC CHP (combined heat & power cogenerations) systems having been sold are well over 10,000 units in number and installed at ordinary houses and being used for electricity and hot water supply. The CHP systems of the SOFC type have been introduced into the market recently, in addition to the PEFC type CHP systems. FCVs (fuel cell vehicles) will enter the early market phase worldwide in around 2015. Hydrogen is the fuel to those fuel cells. The problem confronting us is how to generate hydrogen as the fuel cleanly, effectively and cheaply.
A hydrogen generation technology is now attracting an attention. The technology is based on the artificial photosynthesis. It originated from Japan. Now, it is being actively investigated widely and worldwide. The hydrogen generation technology generates hydrogen and oxygen by using solar light rays (visible light rays) and a photoelectrode (oxide semiconductor in the technology developed anew, which will be described later), and through the water splitting process.
In the electrolysis conventionally and usually used, paired electrodes are put in an electrolytic solution, and voltage is applied to those electrodes. The voltage difference between the electrodes causes current to flow and to split water. Electric power for the voltage application is fed to the electrolysis system from outside.
On the other hand, the artificial photosynthesis basis hydrogen generation technology excites the photoelectrode by solar light rays and splits water by using current flowing out from the electrode.
A small auxiliary power source is used for assisting the current flow at the present stage of the technology.
In other words, the electrolysis system contains a power source means in itself.
The voltage required to split water is extremely lower than of the conventional electrolysis technology. The auxiliary power source could be reduced to almost zero if the technology further advances.
It is noted that where no auxiliary power source is used, hydrogen is cleanly generated at considerably low voltage.
AIST has recently developed (improved) an innovative artificial photosynthesis basis hydrogen generation technology. The new technology remarkably improves the light-to-hydrogen conversion efficiency. The efficiency = 1.35%. The figure is two times of the conventional electrolysis technology.
A diagram showing a scheme of the artificial-photosynthesis basis hydrogen generation system developed this time is put on my site: http://www.fcpat-japan.com.
Writing of the "Technology Details" on this article has been completed. To read more, please feel free to contact us.
***********************
H2 fuel cells still involve many problems to be solved. A typical problem of them is “hydrogen brittlement”. The fuel cells have been much developed and some types of them have entered the early market phase even under the situation, however. In Japan the residential PEFC CHP (combined heat & power cogenerations) systems having been sold are well over 10,000 units in number and installed at ordinary houses and being used for electricity and hot water supply. The CHP systems of the SOFC type have been introduced into the market recently, in addition to the PEFC type CHP systems. FCVs (fuel cell vehicles) will enter the early market phase worldwide in around 2015. Hydrogen is the fuel to those fuel cells. The problem confronting us is how to generate hydrogen as the fuel cleanly, effectively and cheaply.
A hydrogen generation technology is now attracting an attention. The technology is based on the artificial photosynthesis. It originated from Japan. Now, it is being actively investigated widely and worldwide. The hydrogen generation technology generates hydrogen and oxygen by using solar light rays (visible light rays) and a photoelectrode (oxide semiconductor in the technology developed anew, which will be described later), and through the water splitting process.
In the electrolysis conventionally and usually used, paired electrodes are put in an electrolytic solution, and voltage is applied to those electrodes. The voltage difference between the electrodes causes current to flow and to split water. Electric power for the voltage application is fed to the electrolysis system from outside.
On the other hand, the artificial photosynthesis basis hydrogen generation technology excites the photoelectrode by solar light rays and splits water by using current flowing out from the electrode.
A small auxiliary power source is used for assisting the current flow at the present stage of the technology.
In other words, the electrolysis system contains a power source means in itself.
The voltage required to split water is extremely lower than of the conventional electrolysis technology. The auxiliary power source could be reduced to almost zero if the technology further advances.
It is noted that where no auxiliary power source is used, hydrogen is cleanly generated at considerably low voltage.
AIST has recently developed (improved) an innovative artificial photosynthesis basis hydrogen generation technology. The new technology remarkably improves the light-to-hydrogen conversion efficiency. The efficiency = 1.35%. The figure is two times of the conventional electrolysis technology.
A diagram showing a scheme of the artificial-photosynthesis basis hydrogen generation system developed this time is put on my site: http://www.fcpat-japan.com.
2012年2月7日火曜日
Another magnesium fuel cell, developed anew
A magnesium fuel cell (Mg FC) has been developed additionally.
The Mg FC specifications are: electric capacitor = 60 Ah, and size = 26cm×17cm×10cm. In structure, a negative electrode (active material) = incombustible magnesium, a positive electrode (active material) = oxygen gas, and electrolytic solution = saline solution. The prototype successfully charged 120 mobile phones at 360 W as its output. In use, the saline solution is set to the FC body.
The FC body is normally operable at its rated output power even after it is left for several tens years in a state that the solution not set to the FC body.
The Mg FC is resistant to disasters.
In the case of the hydrogen-based fuel cells currently used, for example, the residential CHP (ENEFARM) reforms city gas to produce hydrogen and uses the produced hydrogen for its fuel. In disaster situation, if the pipe- line feeding city gas is damaged, it is substantially impossible to operate the CHP even in case where the CHP itself is not damaged and could normally operate. On the other hand, the Mg FC is normally operable if the electrolytic solution is available, with its long durability of several tens years.
lytic solution is available and since the durability of the FC is very long, several tens years.
>> More
The Mg FC specifications are: electric capacitor = 60 Ah, and size = 26cm×17cm×10cm. In structure, a negative electrode (active material) = incombustible magnesium, a positive electrode (active material) = oxygen gas, and electrolytic solution = saline solution. The prototype successfully charged 120 mobile phones at 360 W as its output. In use, the saline solution is set to the FC body.
The FC body is normally operable at its rated output power even after it is left for several tens years in a state that the solution not set to the FC body.
The Mg FC is resistant to disasters.
In the case of the hydrogen-based fuel cells currently used, for example, the residential CHP (ENEFARM) reforms city gas to produce hydrogen and uses the produced hydrogen for its fuel. In disaster situation, if the pipe- line feeding city gas is damaged, it is substantially impossible to operate the CHP even in case where the CHP itself is not damaged and could normally operate. On the other hand, the Mg FC is normally operable if the electrolytic solution is available, with its long durability of several tens years.
lytic solution is available and since the durability of the FC is very long, several tens years.
>> More
2012年1月26日木曜日
Next generation solar cell turns the doorknob to real commercialization
“Organic thin-film solar cells” have been known. It is the next (third) generation solar cell. The cell efficiency of the solar cell reached about 10%. This figure indicates a rough standard for its real commercialization. The products based on the organic thin-film solar cells will be launched in this and next years, although those products /sales will be trially done. The writing of the detailed description on this title has been completed and if interested, visit here.
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