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Method For Manufacturing Separator For Lithium Secondary Battery, Separator For Lithium Secondary Battery Manufactured Therefrom, And Lithium Secondary Battery Having Same
Abstract: The present invention provides a method for manufacturing a separator for a lithium secondary battery, the method comprising the steps of: (S1) preparing a slurry in which binder polymer particles and inorganic particles are dispersed in an aqueous dispersion medium; and (S2) coating at least one surface of a porous polyolefin polymer substrate having a plurality of pores with the slurry and drying to form a porous coating layer, wherein the thickness of the porous polyolefin polymer substrate is 9 µm or less, the average pore diameter of the porous polyolefin polymer substrate is 30 nm or less, and the amount of the binder polymer component remaining on the porous polyolefin polymer substrate after the porous coating layer is peeled off by attaching and removing 3M scotch tape three times is 0.5 g/m2 or less.
Notices, Deadlines & Correspondence
Patent Information
Applicants
LG ENERGY SOLUTION, LTD.
Inventors
1. JEONG, So-Mi
2. LEE, So-Yeong
3. BAE, Won-Sik
4. BAE, Kyeong-Hui
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202317089065-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [27-12-2023(online)].pdf | 2023-12-27 |
| 2 | 202317089065-STATEMENT OF UNDERTAKING (FORM 3) [27-12-2023(online)].pdf | 2023-12-27 |
| 3 | 202317089065-PRIORITY DOCUMENTS [27-12-2023(online)].pdf | 2023-12-27 |
| 4 | 202317089065-POWER OF AUTHORITY [27-12-2023(online)].pdf | 2023-12-27 |
| 5 | 202317089065-FORM 1 [27-12-2023(online)].pdf | 2023-12-27 |
| 6 | 202317089065-DECLARATION OF INVENTORSHIP (FORM 5) [27-12-2023(online)].pdf | 2023-12-27 |
| 7 | 202317089065-COMPLETE SPECIFICATION [27-12-2023(online)].pdf | 2023-12-27 |
| 8 | 202317089065-Proof of Right [07-05-2024(online)].pdf | 2024-05-07 |
| 9 | 202317089065-FORM 3 [20-06-2024(online)].pdf | 2024-06-20 |
| 10 | 202317089065-FORM 18 [24-03-2025(online)].pdf | 2025-03-24 |