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:
Aug. 21, 2018
Filed:
Oct. 31, 2014
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Bi-Oh Ryu, Daejeon, KR;
Heon-Sik Song, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/14 (2006.01); H01M 2/16 (2006.01); H01M 10/052 (2010.01); B01D 67/00 (2006.01); B01D 71/26 (2006.01);
U.S. Cl.
CPC ...
H01M 2/145 (2013.01); B01D 67/003 (2013.01); B01D 67/0027 (2013.01); B01D 67/0079 (2013.01); B01D 67/0083 (2013.01); B01D 67/0088 (2013.01); B01D 71/26 (2013.01); H01M 2/1653 (2013.01); H01M 2/1686 (2013.01); H01M 10/052 (2013.01);
Abstract
A method of manufacturing a separator for an electrochemical device according to an exemplary embodiment of the present disclosure includes extruding a resin composition including polyolefin and a diluent, stretching the extruded resin composition to obtain a polyolefin film, extracting the diluent from the obtained polyolefin film to obtain a porous polyolefin film, coating a slurry for forming a porous coating layer on at least one surface of the porous polyolefin film, and heat setting the porous polyolefin film coated with the slurry to obtain a composite separator with a porous coating layer.