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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 12370733 B1

PDFFull Text
Date of Patent:
Jul. 29, 2025

Filed:

Nov. 13, 2017

Microlayer membranes, improved battery separators, and related methods

Applicant:

Celgard, Llc, Charlotte, NC (US);

Inventors:

Kang Karen Xiao, Mississauga, CA;

Eric J. Penegar, Fort Mill, SC (US);

Takahiko Kondo, Charlotte, NC (US);

Robert Nark, Fort Mill, SC (US);

Eric R. White, Fort Mill, SC (US);

Xiaomin Zhang, Charlotte, NC (US);

Kristoffer K. Stokes, Lunenburg, MA (US);

Stefan Reinartz, Waxhaw, NC (US);

Masaaki Okada, Charlotte, NC (US);

Assignee:

Celgard, LLC, Charlotte, NC (US);

Attorneys:

J. Clinton Wimbish

Maynard Nexsen, PC

Primary Examiner:

Adam A Arciero

Int. Cl.
CPC ...
B29C 48/08 (2019.01); B29C 48/00 (2019.01); B29C 48/07 (2019.01); B29C 48/21 (2019.01); B29K 23/00 (2006.01); B29L 31/00 (2006.01); B29L 31/34 (2006.01); B32B 27/00 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01); H01M 50/406 (2021.01); H01M 50/417 (2021.01); H01M 50/457 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01); H01M 50/494 (2021.01); H01M 50/497 (2021.01);
U.S. Cl.
CPC ...
B29C 48/08 (2019.02); B29C 48/0018 (2019.02); B29C 48/0021 (2019.02); B29C 48/07 (2019.02); B29C 48/21 (2019.02); B32B 27/00 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); H01M 10/052 (2013.01); H01M 50/406 (2021.01); H01M 50/417 (2021.01); H01M 50/457 (2021.01); H01M 50/491 (2021.01); H01M 50/497 (2021.01); B29K 2023/06 (2013.01); B29K 2023/12 (2013.01); B29L 2031/3468 (2013.01); B29L 2031/755 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2250/04 (2013.01); B32B 2250/05 (2013.01); B32B 2250/242 (2013.01); B32B 2264/0257 (2013.01); B32B 2270/00 (2013.01); B32B 2305/026 (2013.01); B32B 2305/30 (2013.01); B32B 2307/204 (2013.01); B32B 2307/50 (2013.01); B32B 2307/54 (2013.01); B32B 2307/70 (2013.01); B32B 2307/704 (2013.01); B32B 2307/726 (2013.01); B32B 2307/746 (2013.01); B32B 2323/04 (2013.01); B32B 2323/10 (2013.01); B32B 2457/10 (2013.01); H01M 10/0525 (2013.01); H01M 50/489 (2021.01); H01M 50/494 (2021.01); Y02E 60/10 (2013.01);
Abstract

A multilayer microporous membrane which includes microlayers and one or more lamination barriers is disclosed. Also disclosed is a battery separator or battery comprising one or more of the multilayer microporous films or membranes. Also, described herein is a method for making multilayer microporous separators, membranes or films.

Find Patent Forward Citations

Xiao, Kang. (2025). Microlayer membranes, improved battery separators, and related methods (U.S. Patent No. 12370733). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12370733

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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