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Separator Substrate For Electrochemical Device, And Separator Comprising Same
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.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
01 October 2024
Publication Number
05/2025
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application
Applicants
LG ENERGY SOLUTION, LTD.
Tower1, 108, Yeoui-daero,
Yeongdeungpo-Gu,
Seoul 07335
Inventors
1. BAE, Won-Sik
LG Energy Solution Research Park, 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
2. SUNG, Dong-Wook
LG Energy Solution Research Park, 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
3. LEE, So-Yeong
LG Energy Solution Research Park, 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
4. JEONG, So-Mi
LG Energy Solution Research Park, 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202417074166-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [01-10-2024(online)].pdf | 2024-10-01 |
| 2 | 202417074166-STATEMENT OF UNDERTAKING (FORM 3) [01-10-2024(online)].pdf | 2024-10-01 |
| 3 | 202417074166-REQUEST FOR EXAMINATION (FORM-18) [01-10-2024(online)].pdf | 2024-10-01 |
| 4 | 202417074166-PROOF OF RIGHT [01-10-2024(online)].pdf | 2024-10-01 |
| 5 | 202417074166-POWER OF AUTHORITY [01-10-2024(online)].pdf | 2024-10-01 |
| 6 | 202417074166-FORM 18 [01-10-2024(online)].pdf | 2024-10-01 |
| 7 | 202417074166-FORM 1 [01-10-2024(online)].pdf | 2024-10-01 |
| 8 | 202417074166-FIGURE OF ABSTRACT [01-10-2024(online)].pdf | 2024-10-01 |
| 9 | 202417074166-DECLARATION OF INVENTORSHIP (FORM 5) [01-10-2024(online)].pdf | 2024-10-01 |
| 10 | 202417074166-COMPLETE SPECIFICATION [01-10-2024(online)].pdf | 2024-10-01 |
| 11 | 202417074166-FORM 3 [12-03-2025(online)].pdf | 2025-03-12 |