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:
Sep. 27, 2011

Filed:

Apr. 20, 2006
Applicants:

Qiang Rong, Guangdong, CN;

Zhanfeng Jiang, Guangdong, CN;

Huiquan Liu, Guangdong, CN;

Gang HU, Guangdong, CN;

Meihong Sun, Guangdong, CN;

Inventors:

Qiang Rong, Guangdong, CN;

Zhanfeng Jiang, Guangdong, CN;

Huiquan Liu, Guangdong, CN;

Gang Hu, Guangdong, CN;

Meihong Sun, Guangdong, CN;

Assignee:

BYD Company Limited, Gangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/50 (2010.01);
U.S. Cl.
CPC ...
Abstract

A battery cathode including a current collector and a cathode material coated on and/or filled in the current collector, said cathode material including a cathode active substance, a conductive additive and an adhesive, wherein said cathode material is coated with a layer of lithium cobaltate on the surface thereof and the content of lithium cobaltate is 0.1-15 wt % (weight percent) based on the weight of the cathode active substance. The lithium ion battery using the cathode provided by the present invention has a higher specific capacity and improved cycling performance.


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