US 11,699,801 B2
Cell for water electrolysis/fuel cell power generation and cell stack body having a plurality of same cells stacked
Yoshitsugu Sone, Tokyo (JP); Hiroshige Matsumoto, Fukuoka (JP); Yuki Terayama, Fukuoka (JP); Takamasa Haji, Fukuoka (JP); Riichi Sasamori, Kirishima (JP); and Motohiko Sato, Ayase (JP)
Assigned to JAPAN AEROSPACE EXPLORATION AGENCY; KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION; and KYOCERA CORPORATION
Appl. No. 16/344,824
Filed by Japan Aerospace Exploration Agency, Tokyo (JP); KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, Fukuoka (JP); and KYOCERA CORPORATION, Kyoto (JP)
PCT Filed Nov. 1, 2017, PCT No. PCT/JP2017/039530
§ 371(c)(1), (2) Date Apr. 25, 2019,
PCT Pub. No. WO2018/084175, PCT Pub. Date May 11, 2018.
Claims priority of application No. 2016-214586 (JP), filed on Nov. 1, 2016; and application No. 2017-182777 (JP), filed on Sep. 22, 2017.
Prior Publication US 2019/0252708 A1, Aug. 15, 2019
Int. Cl. H01M 8/04 (2016.01); H01M 8/18 (2006.01); H01M 8/04082 (2016.01); H01M 8/0656 (2016.01); C25B 1/04 (2021.01); C25B 9/73 (2021.01)
CPC H01M 8/186 (2013.01) [C25B 1/04 (2013.01); C25B 9/73 (2021.01); H01M 8/04201 (2013.01); H01M 8/0656 (2013.01); Y02E 60/36 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A water electrolysis cell and/or a fuel power cell and/or a reversible cell, comprising:
a cell stack part in which an oxygen-side electrode layer, an electrolyte layer, a hydrogen-side electrode layer, a first gas separator configured for an oxygen-containing gas separated from a liquid water to pass through therein between the oxygen-side electrode layer and the electrolyte layer, and a second gas separator configured for a hydrogen-containing gas separated from the liquid water to pass through therein between the electrolyte layer and the hydrogen-side electrode layer are stacked, and a catalyst layer is provided between the oxygen-side electrode layer and the electrolyte layer and/or between the electrolyte layer and the hydrogen-side electrode layer;
a water flow path configured to supply or discharge water in a first direction substantially perpendicular to a stacking direction of the cell;
an oxygen-containing gas flow path configured to discharge the oxygen-containing gas separated from a liquid water or supply oxygen gas in a second direction substantially perpendicular to the stacking direction of the cell; and
a hydrogen-containing gas flow path configured to discharge or supply the hydrogen-containing gas in a third direction substantially perpendicular to the stacking direction of the cell,
wherein each of the oxygen-side electrode layer and the hydrogen-side electrode layer is an electrode layer having water repellency, and
the water flow path, the oxygen-containing gas flow path, and the hydrogen-containing gas flow path are completely independent and separated from each other.