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:
Apr. 21, 2025
Filed:
Jan. 03, 2022
Lg Electronics Inc., Seoul, KR;
Dongwook Lee, Seoul, KR;
Munhyuk Lim, Seoul, KR;
Hongjung Kim, Seoul, KR;
Kyungho Jung, Seoul, KR;
Juchul Lee, Seoul, KR;
Junhan Kwon, Seoul, KR;
Keeyong Kim, Seoul, KR;
Sumin Lee, Seoul, KR;
Yongkeon Ahn, Seoul, KR;
Youngmin Pi, Seoul, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
Disclosed are a separator for a lithium ion secondary battery, a method for producing the same, and a secondary battery using the same. A separator structure includes a support disposed inside a secondary battery. The support includes a porous polymer matrix, cellulose nano fibers dispersed in the matrix, and inorganic additives dispersed in the matrix, wherein at least some of the inorganic additives are attached to the cellulose nano fibers and are distributed in the matrix.