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Composite Negative Electrode Active Material, Method For Preparing Same, Negative Electrode Comprising Same, And Secondary Battery
Abstract: The present invention relates to a composite negative electrode active material comprising: silicon-based oxide particles; and a metal distributed on the surface, inside, or on the surface and inside of the silicon-based oxide particles, wherein the average diameter of aggregates, as obtained by a specific method, is 65 nm or less. The composite negative electrode active material has a uniform and small aggregate diameter, and thus deterioration in the lifespan performance of the composite negative electrode active material, which is affected by the volumetric expansion and contraction of silicon during charging and discharging, can be minimized.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
17 July 2023
Publication Number
48/2023
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. OH, Ilgeun
(LG Energy Solution Research Park), 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
2. PARK, Semi
(LG Energy Solution Research Park), 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
3. SHIN, Sun Young
(LG Energy Solution Research Park), 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
4. LEE, Yong Ju
(LG Energy Solution Research Park), 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
5. KIM, Kwanghyun
(LG Energy Solution Research Park), 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
6. CHAE, Byung Joon
(LG Energy Solution Research Park), 188, Munji-ro,
Yuseong-gu,
Daejeon 34122
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202317048034-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [17-07-2023(online)].pdf | 2023-07-17 |
| 2 | 202317048034-STATEMENT OF UNDERTAKING (FORM 3) [17-07-2023(online)].pdf | 2023-07-17 |
| 3 | 202317048034-PROOF OF RIGHT [17-07-2023(online)].pdf | 2023-07-17 |
| 4 | 202317048034-PRIORITY DOCUMENTS [17-07-2023(online)].pdf | 2023-07-17 |
| 5 | 202317048034-POWER OF AUTHORITY [17-07-2023(online)].pdf | 2023-07-17 |
| 6 | 202317048034-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [17-07-2023(online)].pdf | 2023-07-17 |
| 7 | 202317048034-FORM 1 [17-07-2023(online)].pdf | 2023-07-17 |
| 8 | 202317048034-DRAWINGS [17-07-2023(online)].pdf | 2023-07-17 |
| 9 | 202317048034-DECLARATION OF INVENTORSHIP (FORM 5) [17-07-2023(online)].pdf | 2023-07-17 |
| 10 | 202317048034-COMPLETE SPECIFICATION [17-07-2023(online)].pdf | 2023-07-17 |
| 11 | 202317048034-FORM 3 [27-11-2023(online)].pdf | 2023-11-27 |
| 12 | 202317048034-FORM 18 [18-02-2025(online)].pdf | 2025-02-18 |