一种钠离子电池用竹粉硬碳负极材料的性能调控方法
By preparing bamboo powder hard carbon anode materials with different particle sizes, the problems of sodium storage capacity and adaptability of sodium-ion battery anode materials were solved, and efficient electrochemical performance optimization was achieved. In particular, the 400-mesh bamboo powder hard carbon anode material exhibited excellent electrochemical performance and is suitable for large-scale application of sodium-ion batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUILIN UNIVERSITY OF TECHNOLOGY
- Filing Date
- 2024-06-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing sodium-ion battery anode materials have shortcomings in terms of sodium storage capacity and adaptability. In particular, due to the large radius of sodium ions, it is difficult to effectively embed them between graphite layers, resulting in unsatisfactory performance.
Bamboo powder was used as a carbon precursor to prepare hard carbon anode materials with different particle sizes by hydrothermal and high-temperature calcination methods. The morphology and structure of the material were analyzed by combining SEM, XRD and Raman spectroscopy, taking advantage of the high-level spacing and porous structure of bamboo powder, and the electrochemical performance of the electrode material was optimized.
The performance of sodium-ion battery anode materials has been regulated. In particular, the 400-mesh bamboo powder hard carbon anode material exhibits the best electrochemical performance, with high reversible capacity and good cycle stability, making it suitable for large-scale applications.
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Figure CN118744980B_ABST