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Separator For Lithium Secondary Battery And Method Of Making Same
Abstract: In a separator according to the present invention, an organic/inorganic composite porous coating layer is formed on the surface of a polymer substrate, and the organic/inorganic composite porous coating layer has a first region with a high content of inorganic particles and a second region with a low content of inorganic particles, wherein the first region allows an improvement in heat resistance of the side surface of a battery, thereby solving the problem of battery short circuits due to the shrinkage of both ends of the separator.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
28 April 2025
Publication Number
36/2025
Publication Type
INA
Invention Field
PHYSICS
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. RYU, Bi-Oh
LG Energy Solution Research Park, 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
3. SUNG, Dong-Wook
LG Energy Solution Research Park, 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
4. LEE, So-Yeong
LG Energy Solution Research Park, 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202517040843-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [28-04-2025(online)].pdf | 2025-04-28 |
| 2 | 202517040843-STATEMENT OF UNDERTAKING (FORM 3) [28-04-2025(online)].pdf | 2025-04-28 |
| 3 | 202517040843-REQUEST FOR EXAMINATION (FORM-18) [28-04-2025(online)].pdf | 2025-04-28 |
| 4 | 202517040843-PROOF OF RIGHT [28-04-2025(online)].pdf | 2025-04-28 |
| 5 | 202517040843-PRIORITY DOCUMENTS [28-04-2025(online)].pdf | 2025-04-28 |
| 6 | 202517040843-POWER OF AUTHORITY [28-04-2025(online)].pdf | 2025-04-28 |
| 7 | 202517040843-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [28-04-2025(online)].pdf | 2025-04-28 |
| 8 | 202517040843-FORM 18 [28-04-2025(online)].pdf | 2025-04-28 |
| 9 | 202517040843-FORM 1 [28-04-2025(online)].pdf | 2025-04-28 |
| 10 | 202517040843-DRAWINGS [28-04-2025(online)].pdf | 2025-04-28 |
| 11 | 202517040843-DECLARATION OF INVENTORSHIP (FORM 5) [28-04-2025(online)].pdf | 2025-04-28 |
| 12 | 202517040843-COMPLETE SPECIFICATION [28-04-2025(online)].pdf | 2025-04-28 |
| 13 | 202517040843-FORM 3 [22-09-2025(online)].pdf | 2025-09-22 |