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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 12355103 B1

PDFFull Text
Date of Patent:
Jul. 08, 2025

Filed:

Feb. 26, 2021

Separator for lithium secondary battery and method for manufacturing the same

Applicant:

Lg Energy Solution, Ltd., Seoul, KR;

Inventors:

Kyung-Ryun Ka, Daejeon, KR;

Jin-Young Shin, Daejeon, KR;

Sang-Joon Lee, Daejeon, KR;

Je-An Lee, Daejeon, KR;

Assignee:

LG ENERGY SOLUTION, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Sarah A Slifka

Int. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 10/0525 (2010.01); H01M 50/403 (2021.01); H01M 50/414 (2021.01); H01M 50/42 (2021.01); H01M 50/426 (2021.01); H01M 50/434 (2021.01); H01M 50/446 (2021.01); H01M 50/491 (2021.01);
U.S. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 10/0525 (2013.01); H01M 50/403 (2021.01); H01M 50/414 (2021.01); H01M 50/42 (2021.01); H01M 50/426 (2021.01); H01M 50/434 (2021.01); H01M 50/446 (2021.01); H01M 50/491 (2021.01);
Abstract

A separator for a lithium secondary battery. The separator for a lithium secondary battery is provided with a porous coating layer including small-particle diameter inorganic particles, large-particle diameter inorganic particles and adhesive polymer particles. The porous coating layer has a predetermined level of porosity. The separator has reinforced heat resistance, reduced resistance and improved peel strength to a porous polymer substrate.

Find Patent Forward Citations

Ka, Kyung-Ryun. (2025). Separator for lithium secondary battery and method for manufacturing the same (U.S. Patent No. 12355103). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12355103

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

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