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:
Aug. 02, 1988
Filed:
Apr. 14, 1987
Applicant:
Inventors:
Masahiro Ide, Hirakata, JP;
Nobuyoshi Nishizawa, Neyagawa, JP;
Nobuya Inoue, Habikino, JP;
Akio Inoue, Neyagawa, JP;
Osamu Takehara, Hirakata, JP;
Assignee:
Sanyo Electric Co., Ltd., Moriguchi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429 49 ; 429 12 ; 429 48 ; 296231 ;
Abstract
One or more defective fuel cells in fuel cell stacks are shortcircuited by a process comprising the steps of making plural holes in bipolar plates adjacent to the defective cell from at least one end of their process gas channels, inserting corrosion-resisting conductive wire rods into resultant holes to shortcircuit between the bipolar plates, and then closing the process gas channels of the bipolar plates at both ends with a heat-resisting sealing material to stop the supply the process gases to the defective cells.