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:
Oct. 28, 2014

Filed:

Oct. 23, 2008
Applicants:

Yongzhong Wang, Tucson, AZ (US);

Zhesheng Xu, Tucson, AZ (US);

John D. Affinito, Tucson, AZ (US);

Charles D. Skaggs, Tucson, AZ (US);

Inventors:

Yongzhong Wang, Tucson, AZ (US);

Zhesheng Xu, Tucson, AZ (US);

John D. Affinito, Tucson, AZ (US);

Charles D. Skaggs, Tucson, AZ (US);

Assignee:

Sion Power Corporation, Tucson, AZ (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/62 (2006.01); H01M 4/60 (2006.01); H01M 4/139 (2010.01); H01M 10/052 (2010.01); H01M 4/04 (2006.01); H01M 4/66 (2006.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); H01M 4/139 (2013.01); H01M 10/052 (2013.01); H01M 4/0404 (2013.01); H01M 4/621 (2013.01); Y02E 60/122 (2013.01); H01M 4/667 (2013.01); H01M 4/623 (2013.01);
Abstract

Primer arrangements that facilitate electrical conduction and adhesive connection between an electroactive material and a current collector are presented. In some embodiments, primer arrangements described herein include first and second primer layers. The first primer layer may be designed to provide good adhesion to a conductive support. In one particular embodiment, the first primer layer comprises a substantially uncrosslinked polymer having hydroxyl functional groups, e.g., polyvinyl alcohol. The materials used to form the second primer layer may be chosen such that the second primer layer adheres well to both the first primer layer and an electroactive layer. In certain embodiments including combinations of first and second primer layers, one or both of the first and second primer layers comprises less than 30% by weight of a crosslinked polymeric material. A primer including only a single layer of polymeric material is also provided.


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