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:
Dec. 29, 2009
Filed:
Mar. 23, 2006
Applicants:
Kunihiro Nakato, Gunma, JP;
Atsuo Sonai, Kanagawa, JP;
Inventors:
Kunihiro Nakato, Gunma, JP;
Atsuo Sonai, Kanagawa, JP;
Assignees:
Sanyo Electric Co., Ltd., Osaka, JP;
Samsung Electronics Co., Ltd., Gyeonggi-Do, KR;
Samsung SDI Co., Ltd., Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Dimensional change occurring in a fuel cell electrolyte including a basic polymer after the electrolyte is doped with acid is regulated and the occurrence of wrinkles and the like is reduced. A fuel cell electrolyte comprises a basic polymer and an organic phosphonic acid expressed by the following general formula (1): where R represents an alkyl, aryl, acyl, amino, phosphonic group or a derivative of the functional group, and n is 1 or 2.