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. 02, 2019
Filed:
Jan. 29, 2014
Cheil Industries Inc., Gyeongsangbuk-do, KR;
Sang Ho Lee, Suwon-si, KR;
Kee Wook Kim, Suwon-si, KR;
Jung Seong Lee, Suwon-si, KR;
Jung Sue Jang, Suwon-si, KR;
Jun Ho Chung, Suwon-si, KR;
Jae Hyun Cho, Suwon-si, KR;
Samsung SDI Co., Ltd., Yongin-Si, Gyeonggi-do, KR;
Abstract
The present invention relates to a method for manufacturing a separator in which the tensile strength is enhanced and melt shrinkage is reduced by controlling elongation step from among the manufacturing steps thereof. Additionally, the present invention relates to a separator having superb winding processability as well as superb thermal stability due to the raised the tensile strength while maintaining a low rate of melt shrinkage. Furthermore, the present invention relates to an electrochemical battery having enhanced stability by utilizing a separator having high tensile strength and a low rate of melt shrinkage.