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:
Nov. 05, 2019
Filed:
Apr. 22, 2016
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Dae-Sung Jang, Daejeon, KR;
Dong-Wook Sung, Daejeon, KR;
Ji-Eun Kim, Daejeon, KR;
Joo-Sung Lee, Daejeon, KR;
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/14 (2006.01); H01M 2/16 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 2/166 (2013.01); H01M 2/145 (2013.01); H01M 2/1646 (2013.01); H01M 2/1653 (2013.01); H01M 2/1686 (2013.01); H01M 10/0525 (2013.01);
Abstract
Provided are a separator for a lithium secondary battery and a manufacturing method therefor. In order to improve processability and cell stability by increasing the bonding force between a separator and a coating layer, the separator comprises: a porous polymer substrate having a plurality of pores; a porous coating layer formed on at least one surface of the porous polymer substrate; and an emulsion binder layer formed between the porous polymer substrate and the porous coating layer.