一种钠离子电池碳基负极材料及其应用
Carbon-based anode materials were prepared by reacting biomass polysaccharides with oxygen-modified materials using a Schiff base reaction, which solved the problems of poor sodium storage performance and insufficient stability of sodium-ion battery anode materials, and achieved high sodium storage capacity and good cycle performance.
CN118811791BActive Publication Date: 2026-07-17BEIJING UNIV OF CHEM TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING UNIV OF CHEM TECH
- Filing Date
- 2023-12-07
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing sodium-ion battery anode materials have poor sodium storage performance and insufficient stability, and the simple structure of biomass polysaccharides leads to low cycle efficiency of the prepared materials.
Method used
Biomass carbon-based anode materials were prepared by reacting biomass polysaccharides with oxygen-modified materials via Schiff base reaction. After chemical and physical treatment, carbon-based anode materials with high sodium storage performance were formed.
Benefits of technology
This technology improves the initial coulombic efficiency and cycle performance of sodium-ion battery anode materials, enabling the development of carbon-based materials with high sodium storage capacity, suitable for hard carbon anode materials in sodium-ion batteries.
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Abstract
一种钠离子电池碳基负极材料及其应用，其属于碱金属离子电池负极材料领域。经席夫碱反应对多糖类物质进行结构改性，增加官能团和提高杂原子占比，将其热处理后得到碳基负极活性材料，并用作钠离子电池，能有效地提升储钠容量。该负极材料在0.05 A g‑1的电流密下储钠比容量可达到300 mAh g‑1，具有优异的循环稳定性。该负极材料具有制备工艺简单，成本廉价，无需酸碱处理，安全绿色的特点，为钠离子电池碳基负极材料商业化发展奠定基础。
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