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:
Oct. 07, 2025
Filed:
Apr. 09, 2021
Samsung Sdi Co., Ltd., Yongin-si, KR;
Jungyoon Lee, Yongin-si, KR;
Hyeonsun Choi, Yongin-si, KR;
Yangseob Kim, Yongin-si, KR;
Jinyoung Kim, Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Abstract
This application relates to a separator and a lithium battery employing the same. In one aspect, the separator includes a porous substrate and a coating layer disposed on a surface of the porous substrate. The coating layer includes organic particles, a first binder, and inorganic particles. The organic particles have a first melting point of about 100° C. to about 130° C. The first binder has a second melting point higher than the first melting point by about 30° C. or more. The organic particles are coated by or embedded in the first binder. The separator can maintain a network structure even at a high temperature, making it possible to improve the high-temperature stability of a lithium battery by employing the separator, as well as delaying a rapid increase in temperature and heat generation when a shutdown occurs.