文献类型：期刊文献

中文题名：3DG/CoSe_(2)@NW锂离子电池负极材料的制备和电化学性能

英文题名：Preparation and Electrochemical Performance of 3DG/CoSe_(2)@NWs Anode Material for Lithium Ion Battery

作者：肖倩[1];朱燕艳[1];曹海静[1];蒋锋[1];方泽波[2]

机构：[1]上海电力大学数理学院,上海200090;[2]绍兴文理学院数理信息学院,浙江绍兴312000

年份：2022

卷号：59

期号：8

起止页码：751

中文期刊名：微纳电子技术

外文期刊名：Micronanoelectronic Technology

收录：CSTPCD、、北大核心、北大核心2020

基金：国家自然科学基金资助项目(51672172,51872186,51971128,52171185);上海市优秀学术/技术带头人计划资助项目(20XD1401800);上海市科委项目(19020501000);微机电系统浙江省工程研究中心开放课题基金资助项目(MEMSZJERC2205);校企合作横向项目(H2021-271)。

语种：中文

中文关键词：纳米线(NW);石墨烯;锂离子电池(LIB);纳米结构;电化学储能;CoSe_(2)

外文关键词：nanowire(NW);graphene;lithium ion battery(LIB);nanostructure;electrochemical energy storage;CoSe_(2)

中文摘要：为开发高效储存性能的锂离子电池(LIB),利用简单的溶剂热反应合成一维Co-硝基三乙酸(NTC)前驱体,与三维石墨烯(3DG)组装并高温退火后,制备了多维度、多孔的3DG/CoSe_(2)@纳米线(NW)负极材料。通过一系列的表征证明在纳米结构中,CoSe_(2)纳米粒子嵌入一维多孔碳NW中,该一维多孔碳NW被封装在3DG中。3DG/CoSe_(2)@NW用作LIB负极材料时,由于其独特的纳米结构,在0.1 A·g^(-1)电流密度下100次循环后比容量为725.6 mA·h·g^(-1),在2 A·g^(-1)的大电流密度下进行500次的循环后,容量保持率为92.5%。电化学测试结果表明,以3DG/CoSe_(2)@NW为电极的LIB具有高比容量和优异的循环稳定性。

外文摘要：To develop lithium ion batteries(LIBs)with efficient storage performance,one-dimensional Co-nitrotriacetic acid(NTC)precursor was synthesized by simple solvothermal reaction,and then were assembled with three-dimensional graphene(3 DG)and annealed at high temperature,thus the multidimensional and porous 3 DG/CoSe_(2)@nanowires(NWs)anode material was prepared.A series of characterizations demonstrate that in the nanostructure,CoSe_(2) nanoparticles are embedded in one-dimensional porous carbon nanowires,which are encapsulated in 3 DG.When 3 DG/CoSe_(2)@NWs is used as LIB anode material,the specific capacity is 725.6 mA·h·g^(-1) after 100 cycles at a current density of 0.1 A·g^(-1) and the capacity retention ratio is 92.5%after 500 cycles at a high current density of 2 A·g^(-1) due to its unique nanostructure.The electrochemical test results show that the LIB with 3 DG/CoSe_(2)@NWs electrode has high specific capacity and excellent cycle stability.