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. 25, 2003
Filed:
Dec. 03, 2001
Applicant:
Inventors:
Koichiro Maeda, Yokohama, JP;
Toshihiro Inoue, Kamakura, JP;
Haruhisa Yamamoto, Yokohama, JP;
Keiko Imai, Yokohama, JP;
Assignee:
Nippon Zeon Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; H01M 4/62 ;
U.S. Cl.
CPC ...
C08L / ; H01M 4/62 ;
Abstract
A polymer dispersion composition obtained by dispersing an electrode active material and a polymer having a gel content of 50% or more in an organic dispersion medium of which boiling point at 760 mmHg is 80° C. or above. The composition is successfully usable as, for instance, a binder composition for batteries, and the battery produced therefrom is high in initial capacity and small in the drop of capacity.