Title:
LITHIUM-RICH MANGANESE-BASED POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/124961
Kind Code:
A1
Abstract:
A lithium-rich manganese-based positive electrode material, a preparation method therefor, and a use thereof, relating to the technical field of lithium ion batteries. The lithium-rich manganese-based positive electrode material comprises a positive electrode material matrix and a coating layer coated on the surface of the positive electrode material matrix. The coating layer comprises a nitrogen- and sulfur-doped carbon material. The nitrogen- and sulfur-doped carbon material comprises a nitrogen- and sulfur-doped carbon material formed by thermal decomposition of a nitrogen- and sulfur-containing organic matter. The lithium-rich manganese-based positive electrode material can effectively improve the first efficiency, the cycle performance and the rate performance of batteries, and reduce voltage attenuation.
Inventors:
FU PINGPING (CN)
LI HONGLEI (CN)
LV FEI (CN)
XU NING (CN)
LI HONGLEI (CN)
LV FEI (CN)
XU NING (CN)
Application Number:
PCT/CN2023/115138
Publication Date:
June 20, 2024
Filing Date:
August 28, 2023
Export Citation:
Assignee:
TIANJIN B&M SCIENCE AND TECH CO LTD (CN)
International Classes:
H01M4/36; H01M4/131; H01M4/505; H01M4/525; H01M4/62; H01M10/0525
Foreign References:
| CN115966667A | 2023-04-14 | |||
| CN111224090A | 2020-06-02 | |||
| CN112421000A | 2021-02-26 | |||
| CN109768241A | 2019-05-17 | |||
| CN115275179A | 2022-11-01 | |||
| CN108520953A | 2018-09-11 | |||
| CN109286013A | 2019-01-29 | |||
| KR20120122204A | 2012-11-07 | |||
| US20220285685A1 | 2022-09-08 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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