US 9,812,728 B2
Fuel-cell single cell
Kazuhiro Kageyama, Kanagawa (JP)
Assigned to NISSAN MOTOR CO., LTD., Kanagawa (JP)
Appl. No. 14/442,993
Filed by Nissan Motor Co., Ltd., Kanagawa (JP)
PCT Filed Nov. 6, 2013, PCT No. PCT/JP2013/079959
§ 371(c)(1), (2) Date May 14, 2015,
PCT Pub. No. WO2014/080761, PCT Pub. Date May 30, 2014.
Claims priority of application No. 2012-255138 (JP), filed on Nov. 21, 2012.
Prior Publication US 2015/0311560 A1, Oct. 29, 2015
Int. Cl. H01M 8/24 (2016.01); H01M 8/10 (2016.01); H01M 8/2465 (2016.01); H01M 8/1004 (2016.01); H01M 8/242 (2016.01); H01M 8/0254 (2016.01); H01M 8/0273 (2016.01); H01M 8/1018 (2016.01)
CPC H01M 8/2465 (2013.01) [H01M 8/0254 (2013.01); H01M 8/0273 (2013.01); H01M 8/1004 (2013.01); H01M 8/242 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0082 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A fuel-cell single cell, comprising:
a membrane electrode assembly sandwiched between a pair of separators; and
a sealing member that seals a gas channel formed between the membrane electrode assembly and the separators,
wherein an uneven portion is formed in a part of the membrane electrode assembly that directly contacts the sealing member,
wherein a sealing member sump to trap the sealing member is provided at a side exposed to reactant gas pressure and a holder part for the sealing member are provided within a part of the separators where the sealing member is disposed,
wherein the uneven portion is opposed to the holder part, and
wherein the uneven portion comprises a plurality of protrusions or a plurality of recesses at predetermined intervals on the membrane electrode assembly.