Title:
POSITIVE ELECTRODE MATERIAL, SODIUM ION BATTERY, AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/082817
Kind Code:
A1
Abstract:
Disclosed are a positive electrode material, a sodium ion battery, and an electric device. The positive electrode material comprises positive electrode material particles, the positive electrode material particles each have a core-shell structure, a core comprises a P2-phase layered oxide, and a shell comprises an O3-phase layered oxide, so as to improve the first coulombic efficiency of the sodium ion battery. The O3-phase layered oxide has a stable crystal structure and reversible electrochemical performance and can be dried and regenerated after absorbing water in an environment, and the core comprises the P2-phase layered oxide, so that the ion battery is ensured to have an excellent rate capability.
Inventors:
DENG CHANGJIAN (CN)
AN LI (CN)
ZHANG YAO (CN)
AN LI (CN)
ZHANG YAO (CN)
Application Number:
PCT/CN2023/114852
Publication Date:
April 25, 2024
Filing Date:
August 25, 2023
Export Citation:
Assignee:
SUNWODA MOBILITY ENERGY TECH CO LTD (CN)
International Classes:
H01M4/36; H01M4/505; H01M4/525; H01M10/054
Foreign References:
| CN115602814A | 2023-01-13 | |||
| CN115057482A | 2022-09-16 | |||
| CN110277540A | 2019-09-24 | |||
| CN115148984A | 2022-10-04 | |||
| US20210155501A1 | 2021-05-27 |
Attorney, Agent or Firm:
PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD. (CN)
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