Title:
SEPARATOR FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/219306
Kind Code:
A1
Abstract:
The present invention relates to a separator for a rechargeable lithium battery, and a rechargeable lithium battery comprising same. The separator for a rechargeable lithium battery comprises: a porous substrate; a heat-resistant layer located on at least one surface of the porous substrate; and an adhesive layer located on the heat-resistant layer, wherein the heat-resistant layer comprises a first binder and inorganic particles, the first binder comprises at least one selected from polyacrylate, polyacrylic acid, polyacrylonitrile, polyvinyl alcohol, polysulfonic acid, polyacrylamide, polyamide, polyurea, polyurethane, and copolymers thereof, the adhesive layer comprises a second binder, and the second binder comprises a copolymer comprising a first unit derived from a vinyl aromatic monomer, a second unit derived from alkyl acrylate, and a third unit derived from a phosphonate-based monomer.
Inventors:
PARK SAM-JIN (KR)
LEE MINJEONG (KR)
SEO JINWEON (KR)
LEE EONMI (KR)
KO CHANGHONG (KR)
LEE MINJEONG (KR)
SEO JINWEON (KR)
LEE EONMI (KR)
KO CHANGHONG (KR)
Application Number:
PCT/KR2023/005706
Publication Date:
November 16, 2023
Filing Date:
April 26, 2023
Export Citation:
Assignee:
SAMSUNG SDI CO LTD (KR)
International Classes:
H01M50/449; C08F212/00; C08F220/18; H01M4/525; H01M10/0525; H01M50/411; H01M50/431; H01M50/443; H01M50/446; H01M50/457
Domestic Patent References:
| WO2020141684A1 | 2020-07-09 | |||
| WO2022023672A1 | 2022-02-03 |
Foreign References:
| CN108250347A | 2018-07-06 | |||
| JP2014077134A | 2014-05-01 |
Other References:
BAI LU, GHIASSINEJAD SINA, BRASSINNE JÉRÉMY, FU YANG, WANG JIANDE, YANG HUI, VLAD ALEXANDRU, MINOIA ANDREA, LAZZARONI ROBERTO, GOH: "High Salt-Content Plasticized Flame-Retardant Polymer Electrolytes", APPLIED MATERIALS & INTERFACES, AMERICAN CHEMICAL SOCIETY, US, vol. 13, no. 37, 22 September 2021 (2021-09-22), US , pages 44844 - 44859, XP055957979, ISSN: 1944-8244, DOI: 10.1021/acsami.1c11058
Attorney, Agent or Firm:
PANKOREA PATENT AND LAW FIRM (KR)
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