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. 26, 2022
Filed:
May. 07, 2018
Samsung Electronics Co., Ltd., Suwon-si, KR;
Boksoon Kwon, Suwon-si, KR;
Youngsuk Jung, Suwon-si, KR;
Seungrim Yang, Seongnam-si, KR;
Dongsu Ko, Seoul, KR;
Youngnam Kwon, Suwon-si, KR;
Hyoungwoo Choi, Hwaseong-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A composite separator, a method of preparing the composite separator, and a secondary battery including the composite separator are provided. The composite separator includes a heat-resistant nonwoven fabric, and a porous coating film on at least one surface of the heat-resistant nonwoven fabric and including a multi-phase polymer including a stationary phase segment and a reversible phase segment, wherein an amount of the stationary phase segment is larger than an amount of the reversible phase segment.