New electrolytic cell for hydrogen generation, developed by Toshiba

Toshiba has developed a new electrolytic cell for hydrogen generation.
It is used in a high temperature steam atmosphere.
Toshiba has already developed the electrolytic cell for hydrogen generation, which is operable at 900°C in the high temperature steam electrolysis process.
The electrolytic cell developed this time will operate at temperatures below 900°C.
It is a ceramic electrolytic element having a three-layer structure, which consists of a zirconia electrolyte and two electrodes layered on both major sides of the electrolyte. The structure of the electrolytic cell is substantially the same as that of the cell unit of the SOFC.
In operation, the ceramic electrolytic element is placed in a high temperature steam atmosphere, and voltage is applied to between the electrodes. Steam is electrolyzed at one electrode into H2 and oxygen ion (O2-). The O2- immigrates to the other electrode where it is released outside in the form of O2.
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Great step toward explosion-free lithium ion battery

A new ceramic electrolyte sheet has been developed. The sheet exhibits high ion conductivity at room temperature. Where it is applied to the all-solid state lithium ion battery, an explosion-free lithium ion battery, which is operable at room temperature, is realized. An overall conductivity of the ceramic electrolyte sheet is 1 x 10-3 S/cm at room temperature.
A unique sintering process was developed. It successfully reduced the particle resistance, leading to development of the ceramic electrolyte sheet.
Applications of the sheet are 1) the electrolyte of the all-solid lithium ion battery 2) the electrolyte of the lithium-water battery (since it has waterproof performance), and 3) others.
Where the technology is used, less energy is required to manufacture large-area thin electrolyte sheets.
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Source: AIST