磷化镍/氧化石墨烯负极材料的制备及其锂离子电池性能研究  

Preparation and electrochemical property of NiP/GO composite as anode material for Li-ion battery

作　　者：孙鹏[1] 马贤坤 赵佳华 吴永钚 杨佳伟 王志晗 王永飞[1,2] 张志强 Sun Peng;Ma Xiankun;Zhao Jiahua;Wu Yongbu;Yang Jiawei;Wang Zhihan;Wang Yongfei;Zhang Zhiqiang(School of Chemical Engineering,Liaoning University of Science and Technology,Anshan 114044;School of Materials and Metallurgy,Liaoning University of Science and Technology,Anshan 114044)

机构地区：[1]辽宁科技大学化学工程学院,鞍山114044 [2]辽宁科技大学材料与冶金学院,鞍山114044

出　　处：《化工新型材料》2021年第5期97-101,共5页New Chemical Materials

摘　　要：以石墨烯和植酸为原料,通过水热及煅烧的方法制备了磷化镍/氧化石墨烯(Ni_(2)P/GO)复合材料。采用X射线衍射、扫描电镜、拉曼光谱及BET等手段表征了其结构与形貌,并测试了锂电池性能。结果表明:Ni_(2)P/GO复合材料的首次充电比容量为558mAh/g,经历了200次循环后依然保持了485.8mAh/g的可逆容量,具有87%的容量保持率,复合材料表现出优异的循环稳定性及倍率性能。Nickel phosphide(Ni_(2)P)/graphene(GO)composites were prepared from graphene and phytic acid by hydrothermal and calcination methods.The structure and morphology were characterized by XRD,SEM,Raman and BET,and tested the performance of Li-ion battery.The first charge specific capacity of Ni_(2)P/GO composite was 558 mAh/g.After 200 cycles,it still maintaind a reversible capacity of 485.8 mAh/g with a capacity retention rate of 87%.The composite shown excellent cycle stability and rate performance.

关 键 词：磷化镍 氧化石墨烯 锂离子电池 电化学性能 

分 类 号：TM912.9[电气工程—电力电子与电力传动]