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:
Jul. 04, 2017
Filed:
Jul. 14, 2014
Lg Chem, Ltd., Seoul, KR;
Toray Battery Separator Film Co., Ltd., Tochigi, JP;
Joo-Sung Lee, Daejeon, KR;
Dong-Wook Sung, Daejeon, KR;
Kyung-Ryun Ka, Daejeon, KR;
Jong-Hun Kim, Daejeon, KR;
LG Chem, Ltd., , KR;
TORAY INDUSTRIES, INC., , JP;
Abstract
The present disclosure relates to a separator for a secondary battery including a dual porous coating layer of inorganic particles with different surface characteristics, a secondary battery including the same, and a method of manufacturing the separator. According to an exemplary embodiment of the present disclosure, a separator including a porous substrate, a first porous coating layer, and a second porous coating layer is provided. According to the present disclosure, a method of manufacturing a separator including forming a first slurry, forming a second slurry, forming a first porous coating layer, and forming a second porous coating layer is provided. A separator according to the present disclosure has uniform dispersion of inorganic particles in a coating layer of the separator, and adsorbs an excess of metal ions generated in the battery when the battery is out of a normal operating temperature range, thereby ensuring safety of the battery.