Title:
ELECTROCHEMICAL REACTION CELL STACK
Document Type and Number:
WIPO Patent Application WO/2021/005810
Kind Code:
A1
Abstract:
The purpose of the prevent invention is to prevent the unevenness in current densities due to the difference in temperatures in electrochemical reaction unit cells. An electrochemical reaction cell stack is provided with a plurality of electrochemical reaction unit cells each provided with an air electrode, a fuel electrode and an electrolyte layer. The fuel electrode contains zirconia. When a layer containing zirconia is subjected to a Raman analysis, an integrated value of intensities in a wavenumber range from 440 cm-1 to 690 cm-1 inclusive is defined as a first integrated value and an integrated value of intensities in a wavenumber range from 185 cm-1 to 380 cm-1 inclusive is defined as a second integrated value. A first ratio, which is a ratio of the second integrated value to the first integrated value in a first fuel electrode part that is included in a higher-temperature cell part in the electrochemical reaction unit cells, is larger than a second ratio, which is a ratio of the second integrated value to the first integrated value in a second fuel electrode part that is included in a lower-temperature cell part in the electrochemical reaction unit cells.
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Inventors:
ISHIDA SATORU (JP)
TODO YUSUKE (JP)
TODO YUSUKE (JP)
Application Number:
PCT/JP2019/045990
Publication Date:
January 14, 2021
Filing Date:
November 25, 2019
Export Citation:
Assignee:
MORIMURA SOFC TECH CO LTD (JP)
International Classes:
C25B13/04; C25B9/00; H01M4/86; H01M8/12; H01M8/1213; H01M8/1253; H01M8/2432
Foreign References:
| 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 |
Attorney, Agent or Firm:
ALPHA INTERNATIONAL PATENT FIRM (JP)
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