ELECTROCHEMICAL REACTION CELL STACK

WIPO Patent Application WO/2020/208861

A1

The present invention prevents unevenness in current density occurring due to a difference in gas concentration between the upstream side and the downstream side of a fuel electrode. This electrochemical reaction cell stack is provided with multiple electrochemical reaction unit cells each including an air electrode, a fuel electrode, and an electrolyte layer. The fuel electrode contains zirconia. When an integral value indicating an intensity in a wavenumber range of 440 cm-1 to 690 cm-1 is defined as a first integral value and an integral value indicating an intensity in a wavenumber range of 185 cm-1 to 380 cm-1 is defined as a second integral value in a Raman analysis of a zirconia-containing layer, then at the fuel electrode provided in at least one of the multiple electrochemical reaction unit cells, a first ratio, that is, the ratio of the second integral value to the first integral value at the upstream side of a flow path of gas supplied to the fuel electrode, is greater than a second ratio, that is, the ratio of the second integral value to the first integral value at the downstream side of the gas flow path in the fuel electrode.

ISHIDA SATORU (JP)
TODO YUSUKE (JP)

PCT/JP2019/045985

October 15, 2020

November 25, 2019

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MORIMURA SOFC TECH CO LTD (JP)

C25B13/04; C25B9/00; H01M4/86; H01M8/12; H01M8/1253

JP2014216237A	2014-11-17
JP2017022107A	2017-01-26
JP2017022106A	2017-01-26
JP5770400B1	2015-08-26
JP2018026336A	2018-02-15
JP2019029114A	2019-02-21
JP2018032578A	2018-03-01

ALPHA INTERNATIONAL PATENT FIRM (JP)

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