红磷/石墨炔复合材料的制备及其储锂性能研究  

Synthesis and lithium storage performance of red phosphorus/graphdiyne composite

作　　者：艾书照 谢东 黄瀚 麦永津[1] AI Shuzhao;XIE Dong;HUANG Han;MAI Yongjin(School of Materials and Energy,Guangdong University of Technology,Guangzhou Guangdong 510006,China;School of Environment and Civil Engineering,Dongguan University of Technology,Dongguan Guangdong 523808,China)

机构地区：[1]广东工业大学材料与能源学院,广东广州510006 [2]东莞理工学院生态环境与建筑工程学院,广东东莞523808

出　　处：《电源技术》2023年第12期1559-1562,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金项目(52002068)。

摘　　要：开发高性能的红磷基负极材料,是实现红磷在锂离子电池中应用的重要环节。结合具有二维平面和均匀分布的孔隙结构的石墨炔材料,首次利用简单有效的球磨方法构筑了一种新型的红磷/石墨炔复合材料。在红磷/石墨炔复合材料中,石墨炔不仅为电子传输和离子扩散提供了一个导电网络,而且缓解了红磷活性材料在充放电过程中的体积变化,从而大大提高了其比容量、循环稳定性和倍率性能。因此,作为锂离子电池负极时,红磷/石墨炔复合材料在首次放电时表现出1688.3 mAh/g的高比容量,库仑效率约为75%,在200 mA/g条件下循环390次后保持1012.2 mAh/g的比容量。To develop high-performance red phosphorus-based anode material is crucial to its practical application in lithium ion batteries.Combined with the graphdiyne material with two-dimensional planar and uniformly distributed pore structure,a novel red phosphorus/graphdiyne(RP/GDY)composite was firstly constructed by using a simple and effective ball milling method.In the RP/GDY composite,the GDY not only provides a conductive network for electron transport and ion diffusion,but also alleviates the volume change of red phosphorus active material during charging and discharging,thus greatly improving the specific capacity,cycling stability and rate capability.As anode material of LIBs,the RP/GDY composite shows a high specific capacity of 1688.3 mAh/g at the initial discharge with the coulombic efficiency of about 75%and maintains a specific capacity of 1012.2 mAh/g after 390 cycles at 200 mA/g.

关 键 词：石墨炔 红磷 锂离子电池 高比容量 

分 类 号：TM912.9[电气工程—电力电子与电力传动]