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:
Nov. 01, 2016
Filed:
Oct. 31, 2014
Lg Chem, Ltd., Seoul, KR;
Ji-Hye Park, Daejeon, KR;
Jae-Hyun Lee, Daejeon, KR;
Su-Rim Lee, Daejeon, KR;
Song-Taek Oh, Daejeon, KR;
Jung-Seok Choi, Daejeon, KR;
Hyeok-Moo Lee, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present disclosure provides a stack-folding type electrode assembly in which a plurality of full cells or bicells as unit cells is stacked on top of each other and surrounded by a second separator, each cell including a positive electrode, a negative electrode, and a first separator interposed between the positive electrode and the negative electrode, wherein a first binder is coated on at least a partial surface of the first separator, a second binder is coated on at least a partial surface of the second separator, and a content of the second binder is higher than a content of the first binder, to inhibit a loose phenomenon inside a battery, make the battery less prone to expansion, and have deformation resistance to an external impact.