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:
Mar. 20, 2012

Filed:

Oct. 25, 2007
Applicants:

Chang-rung Yang, Hsinchu, TW;

Jing-pin Pan, Hsinchu, TW;

Chien-an Chen, Hsinchu, TW;

Jung-mu Hsu, Hsinchu, TW;

Inventors:

Chang-Rung Yang, Hsinchu, TW;

Jing-Pin Pan, Hsinchu, TW;

Chien-An Chen, Hsinchu, TW;

Jung-Mu Hsu, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/13 (2006.01);
U.S. Cl.
CPC ...
Abstract

A battery electrode paste composition containing modified maleimide(s) is provided, which has an electrode active material, a conductive additive, a binder and modified maleimide(s) as dispersant. The modified maleimide as the dispersant in the battery electrode paste composition has dendrimer-like hyperbranched structures, which can form a stable complex with the electrode active material. Therefore, owing to the excellent compatibility of the modified maleimide with the solvent in the electrode paste, the storage stability of the paste is increased. Furthermore, through formation of stable bonding between the modified maleimide and the current-collecting metal substrate, the adhesive force between the electrode film and the current-collecting metal substrate is enhanced and the cycling life of the battery product is extended.


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