US 12,003,006 B2
Fuel cell system and method for controlling fuel cell system
Soichiro Shimotori, Kawasaki Kanagawa (JP)
Assigned to KABUSHIKI KAISHA TOSHIBA, Tokyo (JP); and TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION, Kawasaki (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP); and TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION, Kawasaki (JP)
Filed on Dec. 8, 2020, as Appl. No. 17/115,064.
Application 17/115,064 is a continuation of application No. PCT/JP2019/049349, filed on Dec. 17, 2019.
Claims priority of application No. 2019-001333 (JP), filed on Jan. 8, 2019.
Prior Publication US 2021/0111417 A1, Apr. 15, 2021
Int. Cl. H01M 8/04029 (2016.01); H01M 8/0258 (2016.01); H01M 8/0267 (2016.01); H01M 8/04007 (2016.01); H01M 8/04082 (2016.01); H01M 8/04701 (2016.01); H01M 8/10 (2016.01)
CPC H01M 8/04029 (2013.01) [H01M 8/0258 (2013.01); H01M 8/0267 (2013.01); H01M 8/04067 (2013.01); H01M 8/04201 (2013.01); H01M 8/04701 (2013.01); H01M 2008/1095 (2013.01)] 11 Claims
 
1. A fuel cell system comprising:
a fuel cell provided with a fuel-electrode passage configured to supply a fuel gas to be supplied from a fuel-gas supply passage to a fuel electrode, an oxidizing-electrode passage configured to supply an oxygen-containing gas to an oxidizing electrode, and a cooling-water passage isolated from at least either the fuel-electrode passage or the oxidizing-electrode passage by a conductive porous material;
a cooling-water tank having a cooling-water supply port to which a cooling-water supply pipe coupled at one end to a cooling-water inlet manifold provided in an upstream inlet of the cooling-water passage is coupled at the other end, a first oxygen-containing-gas discharge pipe coupled at one end to an air outlet manifold provided on a downstream side of the oxidizing-electrode passage being coupled to the cooling-water tank at the other end, the cooling-water tank being configured to supply cooling water from the cooling-water inlet manifold; and
a pressure-loss part to which a second oxygen-containing-gas discharge pipe coupled at one end to an air discharge port of the cooling-water tank is coupled at the other end, and to which a fuel-gas discharge pipe coupled at one end to a fuel outlet manifold provided in a downstream outlet of the fuel-electrode passage is coupled at the other end.