一种碳材料和石墨球的复合负极材料及其制备方法和应用
By uniformly dispersing the catalyst on the surface of carbon powder and preparing graphite spheres embedded in carbon materials, the problems of high energy consumption and insufficient performance in the production of composite anode materials in the prior art have been solved, and a high-capacity and high-efficiency lithium-ion battery anode material has been realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LIYANG ZICHEN NEW MATERIALS TECH CO LTD
- Filing Date
- 2022-10-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies make it difficult to produce high-ionic-conductivity composite anode materials on a large scale at low cost, and existing methods suffer from high energy consumption, high cost, and insufficient electronic and ionic conductivity of composite materials.
A composite negative electrode material with graphite spheres embedded in the surface and channels of carbon material was prepared by coating the surface of carbon powder with a catalyst solution and dispersing the catalyst uniformly through mechanical force. Then, carbonization, acid washing and water washing were carried out. The hollow structure of the graphite spheres provides electrolyte retention capacity and ion transport channels, thereby improving electronic conductivity.
A composite anode material with low energy consumption and high ionic conductivity has been developed, exhibiting high capacity and excellent rate performance, significantly improving battery capacity and first-efficiency performance, and is suitable for industrial production.
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Figure CN115566172B_ABST