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:
Nov. 01, 1988
Filed:
Jun. 12, 1987
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 36 ; 429 16 ;
Abstract
The fuel cell of this invention has the following electrolyte plate and separator plate. An electrolyte plate made of ceramics which is interposed between an anode and a cathode which are arranged opposite to each other. A separator plate which is laminated on the back surface of each of the anode and cathode and which is made of such a material and in such a composition that the expansion coefficient thereof is nearly equal to that of the electrolyte plate. According to the above construction, tensile stress applied to the electrolyte plate due to a change in temperature can be reduced and cracking of the electrolyte plate which may occur with lapse of time can be prevented.