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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.:

US 10944087 B1

PDFFull Text
Date of Patent:
Mar. 09, 2021

Filed:

Jan. 27, 2017

Separators, batteries, systems, vehicles, and related methods

Applicant:

Celgard, Llc, Charlotte, NC (US);

Inventors:

Xiaomin Zhang, Charlotte, NC (US);

Gerald P. Rumierz, Fort Mill, SC (US);

Karl F. Humiston, Tucson, AZ (US);

Charles E. Haire, Lancaster, SC (US);

Tyrone S. Fields, Charlotte, NC (US);

Michael A. Braswell, Charlotte, NC (US);

Ronald A. Proctor, York, SC (US);

Ronnie E. Smith, Huntersville, NC (US);

Assignee:

Celgard, LLC, Charlotte, NC (US);

Attorney:

Hammer & Associates, P.C.

Primary Examiner:

Brittany L Raymond

Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/18 (2006.01); B29C 47/00 (2006.01); B29C 47/06 (2006.01); B29C 65/00 (2006.01); B29C 47/92 (2006.01); B29C 48/00 (2019.01); B29C 48/21 (2019.01); B29C 48/92 (2019.01); B29C 48/08 (2019.01); B29C 48/10 (2019.01); B29C 48/18 (2019.01); B29C 55/00 (2006.01); B29C 48/32 (2019.01); B29C 48/88 (2019.01); B29C 55/14 (2006.01); B29C 55/16 (2006.01); B29D 99/00 (2010.01); B29K 23/00 (2006.01); B29L 31/34 (2006.01); B29L 31/00 (2006.01); H01M 2/14 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 2/1653 (2013.01); B29C 48/0018 (2019.02); B29C 48/08 (2019.02); B29C 48/10 (2019.02); B29C 48/18 (2019.02); B29C 48/21 (2019.02); B29C 48/92 (2019.02); B29C 55/005 (2013.01); B29C 65/00 (2013.01); H01M 2/1686 (2013.01); H01M 2/18 (2013.01); B29C 48/32 (2019.02); B29C 48/917 (2019.02); B29C 55/14 (2013.01); B29C 55/16 (2013.01); B29C 2948/92704 (2019.02); B29D 99/005 (2013.01); B29K 2023/12 (2013.01); B29L 2031/3468 (2013.01); B29L 2031/755 (2013.01); H01M 2/145 (2013.01); H01M 10/0525 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01); Y02E 60/10 (2013.01);
Abstract

Improved battery separators, base films or membranes and/or a method of making or using such separators, base films or membranes are provided. The preferred inventive separators, base films or membranes are made by a dry-stretch process and have improved strength, high porosity, high charge capacity and high porosity to provide excellent charge rate and/or charge capacity performance in a rechargeable battery.

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