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:
Feb. 03, 2004
Filed:
Aug. 27, 1999
Applicant:
Inventors:
Masaki Fujiwara, Tokyo, JP;
Gaku Harada, Tokyo, JP;
Shinako Okada, Tokyo, JP;
Toshihiko Nishiyama, Tokyo, JP;
Assignee:
NEC Tokin Corporation, Miyagi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/60 ; H01M 4/62 ;
U.S. Cl.
CPC ...
H01M 4/60 ; H01M 4/62 ;
Abstract
A battery electrode is obtained by coating an electrically conductive film serving as a collector with an aqueous solution of formic acid containing polypyridine, which is an active material, in dissolved form as well as carbon powder serving as a conduction aid, and drying the solution on the film. A secondary battery is manufactured using such electrodes.