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.

Date of Patent:
Nov. 08, 2016

Filed:

Mar. 05, 2013
Applicants:

Lg Chem, Ltd., Seoul, KR;

Toray Battery Separator Film Co., Ltd., Nasushiobara-shi, Tochigi, JP;

Inventors:

Hyun Hang Yong, Seoul, KR;

Sang Young Lee, Daejeon, KR;

Seok Koo Kim, Daejeon, KR;

Soon Ho Ahn, Daejeon, KR;

Jung Don Suk, Daejeon, KR;

Assignees:

LG CHEM, LTD., Seoul, KR;

TORAY BATTERY SEPARATOR FILM CO., LTD, Nasushiobara-shi, Tochigi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/18 (2006.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 2/166 (2013.01); H01M 2/1686 (2013.01); H01M 2/18 (2013.01); H01M 10/0525 (2013.01); H01M 10/4235 (2013.01); Y02E 60/122 (2013.01); Y02P 70/54 (2015.11); Y02T 10/7011 (2013.01); Y10T 428/2998 (2015.01);
Abstract

Disclosed is an organic/inorganic composite porous film comprising: (a) inorganic particles; and (b) a binder polymer coating layer formed partially or totally on surfaces of the inorganic particles, wherein the inorganic particles are interconnected among themselves and are fixed by the binder polymer, and interstitial volumes among the inorganic particles form a micropore structure. A method for manufacturing the same film and an electrochemical device including the same film are also disclosed. An electrochemical device comprising the organic/inorganic composite porous film shows improved safety and quality.


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