Title:
LITHIUM-RICH MANGANESE-BASED POSITIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/037625
Kind Code:
A1
Abstract:
A lithium-rich manganese-based positive electrode material, and a preparation method therefor and the use thereof. The surface of the lithium-rich manganese-based positive electrode material has oxygen vacancies. The molecular formula of the lithium-rich manganese-based positive electrode material is Li1+aMnbMcO2, wherein Mn comprises positive trivalent manganese and positive tetravalent manganese, and the overall molar percentage of the positive trivalent manganese in Mn is 20-60%; M comprises one or more of Ni, Co, Al, Mo, Ti and Zr; 0 < a ≤ 0.25; b ≥ 0.5; and 0.8 ≤ a+b+c ≤ 1.2.
Inventors:
LI HONGLEI (CN)
CHEN ZHIYU (CN)
JI CHANGYIN (CN)
LV FEI (CN)
XU NING (CN)
CHEN ZHIYU (CN)
JI CHANGYIN (CN)
LV FEI (CN)
XU NING (CN)
Application Number:
PCT/CN2023/113757
Publication Date:
February 22, 2024
Filing Date:
August 18, 2023
Export Citation:
Assignee:
TIANJIN B & M SCIENCE AND TECH CO LTD (CN)
International Classes:
H01M10/0525; H01M4/131; H01M4/505
Foreign References:
| CN115275179A | 2022-11-01 | |||
| CN111029562A | 2020-04-17 | |||
| CN109935817A | 2019-06-25 | |||
| CN104466157A | 2015-03-25 | |||
| CN114335509A | 2022-04-12 | |||
| KR20200118768A | 2020-10-16 | |||
| CN202210998592A | 2022-08-19 |
Attorney, Agent or Firm:
ACIP LAW OFFICES (CN)
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