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.

Date of Patent:
May. 04, 2004

Filed:

Nov. 03, 2000
Applicant:
Inventors:

Isao Suzuki, Kyoto, JP;

Shuji Hitomi, Kyoto, JP;

Syozo Hashizume, Osaka, JP;

Eriko Yagasaki, Osaka, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/02 ; H01M 4/36 ; H01M 4/48 ; H01M 4/58 ; H01M 4/62 ;
U.S. Cl.
CPC ...
H01M 4/02 ; H01M 4/36 ; H01M 4/48 ; H01M 4/58 ; H01M 4/62 ;
Abstract

The high rate discharge performance and cyclability are improved. A battery having a hich capacity density and excellent cyclability and safety performance can be produced. A composite active material provided with a polymer on the surface of a carbon-based active material in an amount of from 0.01% to 5% by weight is used. Further, a composite active material provided with a polymer on the surface of a carbon-based active material in an amount of from 0.04 to 4% by weight is used. In particular, the former composite active material is used as a positive active material while the latter composite active material is used as a negative active material to obtain a non-aqueous electrolyte battery.


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