Title:
SEPARATOR FOR SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/085735
Kind Code:
A1
Abstract:
Provided is a separator for a secondary battery having excellent dimensional stability even at high temperatures when in a wet state having an electrolyte injected. According to one aspect of the present invention, provided is a separator for a secondary battery, comprising: a porous substrate; and a functional coating layer disposed on at least one surface of the porous substrate, wherein the functional coating layer includes a first coating layer and a second coating layer disposed on the first coating layer, the first coating layer includes inorganic particles, an acrylic binder, and polydopamine, and the second coating layer includes polydopamine.
Inventors:
KIM JI HYEON (KR)
SUNG DONG WOOK (KR)
KA KYUNG RYUN (KR)
SUNG IN HYOUK (KR)
KIM HYE WON (KR)
SUNG DONG WOOK (KR)
KA KYUNG RYUN (KR)
SUNG IN HYOUK (KR)
KIM HYE WON (KR)
Application Number:
PCT/KR2023/016460
Publication Date:
April 25, 2024
Filing Date:
October 23, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M50/451; H01M50/403; H01M50/414; H01M50/443; H01M50/446; H01M50/46; H01M50/491
Attorney, Agent or Firm:
IPCJ PATENT & LAW FIRM (KR)
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