一种氮掺杂碳量子点修饰的磷化亚铜 / 气相生长碳纤维复合材料的制备方法
By introducing copper into the surface of nitrogen-doped carbon quantum dots to prepare cuprous phosphide/vapor-grown carbon fiber composite materials, the conductivity and stability problems of sodium-ion battery anode materials are solved, achieving high capacity and low-temperature performance, which is suitable for industrial applications of sodium-ion batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI UNIV
- Filing Date
- 2023-09-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing sodium-ion battery anode materials, such as hard carbon, suffer from low tap density, temperature sensitivity, and sodium dendrite problems. Traditional Cu3P anode materials have poor conductivity, large volume expansion effect, and poor cycle performance, which limits their application in large-scale energy storage and low-temperature environments.
A nitrogen-doped carbon quantum dot-modified cuprous phosphide/vapor-grown carbon fiber composite material was prepared by introducing copper into the surface of nitrogen-doped carbon quantum dots in a one-step hydrothermal method. This method enhances conductivity and stability, avoids environmental pollution during phosphating, and achieves high specific capacity and low-temperature performance.
The prepared material exhibits excellent capacity and cycle stability at high rates, possesses low-temperature performance, is suitable for extreme weather conditions, and is suitable for the industrial production and practical application of sodium-ion batteries.
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Figure CN117276506B_ABST