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:
Jan. 30, 2001
Filed:
Sep. 15, 1998
Applicant:
Inventors:
Assignee:
NGK Insulators, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 6/00 ;
U.S. Cl.
CPC ...
H01M 6/00 ;
Abstract
A layered sintered body for an electrochemical cell which is a planar-type layered sintered body composed of an electrode and a separator stacked thereon, wherein a plurality of gas flow passages are formed by coupling grooves formed on the electrode and the separator. Even when this electrochemical cell is subjected to repetition of a cooling-heating cycle, an increase of internal resistance on and around the boundary between the separator and electrode can be restrained and layer separation and development of cracks at the joint boundary can be prevented.