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:
Jun. 30, 2020
Filed:
Feb. 28, 2014
Applicant:
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Inventors:
Kee Wook Kim, Suwon-si, KR;
Sang Ho Lee, Suwon-si, KR;
Jung Seong Lee, Suwon-si, KR;
Jun Ho Chung, Suwon-si, KR;
Jae Hyun Cho, Suwon-si, KR;
Assignee:
Samsung SDI Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/14 (2006.01); C08J 5/18 (2006.01); B29C 55/14 (2006.01); B29K 23/00 (2006.01); B29L 7/00 (2006.01); B29L 31/34 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1653 (2013.01); B29C 55/14 (2013.01); C08J 5/18 (2013.01); H01M 2/145 (2013.01); B29K 2023/065 (2013.01); B29K 2995/0017 (2013.01); B29K 2995/0065 (2013.01); B29L 2007/008 (2013.01); B29L 2031/3468 (2013.01);
Abstract
The present invention relates to a method for manufacturing a separator for batteries, a separator manufactured by the method, and a secondary battery including the separator. More specifically, the present invention relates to a method for manufacturing a separator having enhanced tensile strength by performing a shutdown process stopping a stretch during a process of stretching a base film of the separator.