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:
Mar. 01, 2016
Filed:
Nov. 29, 2012
Lg Chem, Ltd., Seoul, KR;
Joo-Sung Lee, Daejeon, KR;
Jeong-Min Ha, Daejeon, KR;
Sun-Mi Jin, Daejeon, KR;
Bo-Kyung Ryu, Daejeon, KR;
Jong-Hun Kim, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
TORAY BATTERY SEPARATOR FILM CO., LTD., Nasushiobara-shi, JP;
Abstract
A separator including a porous substrate, and a porous coating layer formed on at least one surface of the porous substrate and including a mixture of inorganic particles and a binder polymer. A continuous or discontinuous patterned layer is formed on the surface of the porous coating layer to allow an electrolyte solution to permeate therethrough. The continuous or discontinuous patterned layer may be formed with continuous grooves to allow an electrolyte solution to permeate therethrough. Due to this structure, the wettability of the separator with an electrolyte solution is improved, shortening the time needed to impregnate the electrolyte solution into the separator.