一种三元复合锂离子正极材料及其制备方法
By modifying the preparation method of lithium nickel cobalt manganese oxide materials, and combining Zr-Al doping and graphene oxide coating, the problems of insufficient cycle stability and conductivity of lithium nickel cobalt manganese oxide ternary materials are solved, thereby improving the overall performance of lithium-ion batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUNAN YUNENG NEW ENERGY BATTERY MATERIALS CO LTD
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ternary materials such as nickel-cobalt-manganese lithium oxide have shortcomings in terms of cycle stability and conductivity, which affect the performance of lithium-ion batteries.
By combining modified lithium nickel cobalt manganese oxide, conductive agents, and binders, and employing specific preparation process steps, including stirring, centrifugation, drying, ball milling, sintering, and coating, Zr-Al doped lithium nickel cobalt manganese oxide is formed, and then coated with graphene oxide to improve the structural stability and electrical conductivity of the material.
It significantly improves the cycle life and electrochemical performance of lithium-ion batteries, enhances the conductivity and structural stability of materials, reduces the degree of electrochemical polarization, and improves the first charge-discharge coulombic efficiency.
Smart Images
Figure CN122417869A_ABST