Solid Electrolyte Materials for Intermediate-Temperature Use are Developed Anew

SOFC generally operates at high temperatures of around 1000 degrees of C.
The high temperature operation of the SOFC limits its application range.
If the operation temperature of the SOFC could be lowered to 700 degrees of C or lower, its application range will broaden. It is said that to use the SOFC (micro SOFC) for the power sources of small electronic devices, its operation temperature must be 450°C or lower
NIMS is developing solid electrolyte materials that are applicable to the intermediate-temperature SOFC operating at intermediate temperatures within a range of 350 to 600°C.
As already described, NIMS has developed the electrolyte thin film effective at the intermediate temperatures. The electrolyte thin film is a yttrium-doped barium zirconate （BZY）thin film. The pulsed laser deposition process was used for fabricating the BZY thin film.
Recently, NIMS has additionally developed two types of solid electrolyte materials in use for the intermediate-temperature SOFC.
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