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:
Feb. 27, 2018
Filed:
Dec. 17, 2014
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/18 (2006.01); H01M 10/0525 (2010.01); B32B 27/14 (2006.01); H01M 2/14 (2006.01); H01M 10/052 (2010.01); C09D 123/06 (2006.01);
U.S. Cl.
CPC ...
H01M 2/166 (2013.01); B32B 27/14 (2013.01); H01M 2/145 (2013.01); H01M 2/162 (2013.01); H01M 2/1653 (2013.01); H01M 2/1666 (2013.01); H01M 2/1686 (2013.01); H01M 2/18 (2013.01); H01M 10/0525 (2013.01); B32B 2457/00 (2013.01); C09D 123/06 (2013.01); H01M 10/052 (2013.01);
Abstract
Disclosed is a separator for an electrochemical device including a porous polymer film, and a porous coating layer including at least one type of particles of inorganic particles and organic particles and binder polymer, the porous coating layer formed on one surface or both surfaces of the porous polymer film, wherein the porous polymer film has a structure in which multiple fibrils arranged parallel to the surface of the film are stacked in layers, and the fibrils are bound to each other to form a lamellar structure with a size from 130 to 200 nm and tortuosity of the porous polymer film is from 1.60 to 1.90, and an electrochemical device comprising the same.