Title:
SEPARATOR SUBSTRATE FOR ELECTROCHEMICAL DEVICE, AND SEPARATOR COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2024/091076
Kind Code:
A1
Abstract:
The present invention relates to a separator substrate, a separator, and an electrochemical device comprising same. The separator substrate according to the present invention is for an electrochemical device and comprises a crosslinked polyolefin resin and chromium (Cr), wherein the crosslinked polyolefin resin comprises a phosphorus-containing organic group grafted onto a polyolefin chain, the gel fraction of the separator substrate is 3% to 80%, the standard deviation (△d) of thicknesses measured at at least any 100 points is 0.5 µm or less, and the number of spots having a long-side length of 50 µm or more is 10 or less per 1 m2.
Inventors:
BAE WON-SIK (KR)
SUNG DONG-WOOK (KR)
LEE SO-YEONG (KR)
JEONG SO-MI (KR)
SUNG DONG-WOOK (KR)
LEE SO-YEONG (KR)
JEONG SO-MI (KR)
Application Number:
PCT/KR2023/016918
Publication Date:
May 02, 2024
Filing Date:
October 27, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M50/417; H01G11/52; H01M10/052; H01M50/403; H01M50/431; H01M50/449
Foreign References:
| KR20200012800A | 2020-02-05 | |||
| KR102022595B1 | 2019-11-05 | |||
| KR19990076753A | 1999-10-15 | |||
| JP4073241B2 | 2008-04-09 | |||
| JP2020033574A | 2020-03-05 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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