一种改性锰酸锂正极材料及其制备方法
By coating the surface of lithium lanthanum titanium oxide solid electrolyte onto the lithium manganese oxide cathode material, the problem of poor cycle performance of lithium manganese oxide was solved, and the high rate performance and cycle stability of the material were improved, making it suitable for large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI BOSHI HIGH-TECH NEW MATERIAL CO LTD
- Filing Date
- 2023-05-10
- Publication Date
- 2026-07-17
AI Technical Summary
The cycle performance of lithium manganese oxide cathode materials is poor, especially under high temperature conditions. The main reasons are the dissolution of manganese and the interfacial side reactions with the electrolyte.
A lithium lanthanum titanium oxide solid electrolyte is coated onto the surface of lithium manganese oxide. By forming a lithium lanthanum titanium oxide solid electrolyte layer on the surface of the lithium manganese oxide cathode material, the lithium ion migration rate is improved and internal stress is suppressed. This is achieved using a simple and controllable preparation method.
This improves the rate performance and cycle stability of lithium manganese oxide cathode materials, reduces production costs, and makes them suitable for large-scale industrial production.
Smart Images
Figure CN116632189B_ABST