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:
Apr. 09, 2019
Filed:
Nov. 10, 2016
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Nari Seo, Yongin-si, KR;
Bokhyun Ka, Yongin-si, KR;
Eunhyung Choi, Yongin-si, KR;
Donghyuk Chang, Yongin-si, KR;
Samsung SDI Co., Ltd., Gyeonggi-do, KR;
Abstract
Provided is a secondary battery, which includes a separator having excellent air permeability such that the separator is adhered to a positive electrode plate and/or a negative electrode plate at a low temperature under a low pressure and swelling in an electrolyte solution is relatively suppressed. The secondary battery includes an electrode assembly including a positive electrode plate, a negative electrode plate and a separator interposed between the positive electrode plate and the negative electrode plate, wherein the separator further includes an adhesive layer formed on its surface, the adhesive layer includes a binder, and a gel-sol transition temperature of the binder is in a range of 70° C. to 90° C.