新型炔碳类富碳材料的合成及其在锂离子电池中的性能

Synthesis of novel alkyne carbon-like carbon-rich materials and their applications in lithium-ion batteries

以富碳有机电极材料为研究对象,通过设计分子结构实现高效的锂离子存储。一方面,通过构建大的共轭体系提高材料的电子传输能力;另一方面,通过构筑新型的分子内孔道,为锂离子的传输提供便捷的通道。以1,3,5-三(4-乙炔基苯基)苯为单体在铜基底上催化偶联,得到了新型的炔碳类富碳材料。电化学性能测试结果表明,该材料具有优异的离子存储性能,并且展现了良好自支撑性能,在柔性电极领域具有良好的应用潜力。

This study focuses on carbon-rich organic electrode materials and aims to achieve efficient lithium-ion storage through molecular structure design.On one hand,the electronic transmission capacity of the material is enhanced by constructing a large conjugated system.On the other hand,novel intramolecular pores are constructed to provide convenient channels for lithium-ion transport.A novel carbon-rich material with alkyne carbon is obtained by catalytic coupling of 1,3,5-tris(4-ethynylphenyl)benzene as a monomer on a copper substrate.Electrochemical performance tests reveal that this material exhibits excellent ion storage performance.Furthermore,it demonstrates good self-supporting properties,indicating promising application potential in the field of flexible electrodes.