The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2020
Filed:
Jun. 07, 2016
Applicant:
Ngk Spark Plug Co., Ltd., Nagoya-shi, JP;
Inventors:
Nobuyuki Hotta, Konan, JP;
Hideki Ishikawa, Ichinomiya, JP;
Shunta Ohashi, Komaki, JP;
Yasuki Izutsu, Kyoto, JP;
Assignee:
NGK SPARK PLUG CO., LTD., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/0271 (2016.01); H01M 8/247 (2016.01); H01M 8/0286 (2016.01); H01M 8/2404 (2016.01); H01M 8/12 (2016.01); H01M 8/0282 (2016.01); H01M 8/124 (2016.01);
U.S. Cl.
CPC ...
H01M 8/0271 (2013.01); H01M 8/0286 (2013.01); H01M 8/2404 (2016.02); H01M 8/247 (2013.01); H01M 8/0282 (2013.01); H01M 8/12 (2013.01); H01M 2008/1293 (2013.01); Y02P 70/56 (2015.11);
Abstract
A fuel cell stack including a plurality of electricity generation units fastened by means of a plurality of fastening members. Each electricity generation unit includes a single cell, and a sealing member sandwiched between two other members thereby sealing one of the anode chamber and the cathode chamber. The surface of the sealing member included in at least one electricity generation units, the surface facing either of the two other members, has a surface roughness Ra of 3.0 μm or less.