一种超高镍三元正极材料及其制备方法和应用
By employing a wet process of Sr and La co-doping and wet coating of lithium lanthanum titanate and Li3PO4, combined with boric acid surface modification, the structural instability and insufficient electrical performance of ultra-high nickel cathode materials were solved, achieving high cycle stability and excellent conductivity of the material.
Patent Information
- Application Number
- CN202510750590.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2026-07-17
- Estimated Expiration
- 2045-06-05
AI Technical Summary
Existing ultra-high nickel cathode materials suffer from problems such as easy particle crushing due to the formation of surface rock salt phase, dissolution of transition metals, deterioration of electrode-electrolyte interface, poor cycle performance and thermal stability, and the mechanical degradation problem has not been solved.
The core material is doped using a wet process with Sr and La co-doping, combined with wet coating of lithium lanthanum titanate and Li3PO4, and further modified with boric acid and/or boron oxide to form a core and coating layer structure, thereby improving the structural stability and electrical properties of the material.
Significant improvements in the structural stability and electrical conductivity of ultra-high nickel ternary cathode materials have been achieved, exhibiting excellent cycle performance and electrical performance, thus solving the problem of insufficient material stability and electrical performance in existing technologies.
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Abstract
Citation Information
Patent Citations
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