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:
Apr. 12, 1994
Filed:
Apr. 07, 1992
Applicant:
Inventors:
Tsukasa Ito, Sumoto, JP;
Nobuyoshi Nishizawa, Neyagawa, JP;
Akira Hamada, Kadoma, JP;
Akihiro Furuse, Sumoto, JP;
Assignee:
Sanyo Electric Co. Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 24 ; 429 26 ;
Abstract
Disclosed is an operating method of a compact phosphoric acid fuel cell system whose operation is started and stopped repeatedly, comprising a lamination of a plurality of cell units each of which has an electrolyte matrix impregnated with a phosphoric acid electrolyte between a positive electrode and a negative electrode, characterized by being operated so that each of the cell units can have a phosphoric acid electrolyte whose density is partially less than 91.6 wt % during the operation.