Title:
POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, BATTERY, ENERGY STORAGE DEVICE AND ENERGY STORAGE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/120092
Kind Code:
A1
Abstract:
Provided in the present application are a positive electrode material and a preparation method therefor, a battery, an energy storage device and an energy storage system. The positive electrode material may comprise Na4-xAxVMn1-yBy(PO4)3, where A is an alkaline metal ion, B is a transition metal ion, and 0.02 ≤ x ≤ 0.15 and 0.05 ≤ y ≤ 0.2. In the present application, a positive electrode material prepared by means of the preparation method, in which two ions - an alkaline metal ion and a transition metal ion - are used for doping Na4VMn(PO4)3, has a relatively high specific capacity and relatively high cycling stability. Therefore, when the positive electrode material is applied to a positive electrode sheet of an electronic device, the rate capability and the cycling stability of the electronic device can be improved.
Inventors:
ZHANG RUIWANG (CN)
YANG JINXING (CN)
ZHANG YEZHENG (CN)
YANG JINXING (CN)
ZHANG YEZHENG (CN)
Application Number:
PCT/CN2023/129676
Publication Date:
June 13, 2024
Filing Date:
November 03, 2023
Export Citation:
Assignee:
HUAWEI DIGITAL POWER TECH CO LTD (CN)
International Classes:
H01M4/58; H01M4/04; H01M4/136; H01M4/1397
Foreign References:
| CN116111084A | 2023-05-12 | |||
| CN114408892A | 2022-04-29 | |||
| CN111564605A | 2020-08-21 | |||
| CN114156453A | 2022-03-08 | |||
| CN106058202A | 2016-10-26 | |||
| CN107819115A | 2018-03-20 | |||
| CN113921809A | 2022-01-11 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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