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:
Feb. 11, 2020
Filed:
Aug. 07, 2013
Applicant:
Celgard Llc, Charlotte, NC (US);
Inventors:
Zhengming Zhang, Rock Hill, SC (US);
Xuefa Li, Matthews, NC (US);
Lie Shi, Matthews, NC (US);
Premanand Ramadass, Charlotte, NC (US);
Paul M. Halmo, Denver, NC (US);
Xiaomin Zhang, Charlotte, NC (US);
Assignee:
Celgard, LLC, Charlotte, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/14 (2006.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 2/1686 (2013.01); H01M 2/145 (2013.01); H01M 2/1646 (2013.01); H01M 2/1653 (2013.01); H01M 10/052 (2013.01);
Abstract
A battery separator for a secondary lithium battery includes a microporous/porous membrane with a ceramic coating of one or more layers, a layer may include one or more particles having an average particle size ranging from 0.01 μm to 5 μm and/or binders that include poly (sodium acrylate-acrylamide-acrylonitrile) copolymer.