氧化铜纳米片阵列的合成及其锂离子电池负极材料的研究  

Synthesis of Copper Oxide Nanosheet Arrays for Negative Electrode Materials of Lithium-Ion Batteries

作　　者：温元斌[1] 郭志忠 卿晨 李天瑞 孙茂欧 杨许月 杨红萍 严泉炜 夏新淼 鲁金宝 段明叶 于素甫江 Wen Yuanbin;Guo Zhizhong;Qing Chen;Li Tianrui;Sun Maoou;Yang Xuyue;Yang Hongping;Yan Quanwei;Xia Xinmiao;Lu Jinbao;Duan Mingye;Yusu Fujiang(College of Physics and Electronic Information,Yunnan Normal University,Kunming,Yunnan 650500,China)

机构地区：[1]云南师范大学物理与电子信息学院

出　　处：《激光与光电子学进展》2019年第22期160-164,共5页Laser & Optoelectronics Progress

基　　金：国家自然科学基金（11847117）;云南师范大学大学生科研训练基金（ky2018-108,ky2018-110）

摘　　要：通过水浴合成方法简易快速地在铜片基底上合成氧化铜纳米片阵列,10min反应时间下合成的氧化铜纳米片阵列具有最高的初始放电比容量(629.1mA·h·g-1)以及良好的循环特性(100次循环后仍保留初始容量的79.6%)。该阵列结构有效地解决了传统块体氧化铜材料作为锂离子电池负极材料在充电中体积膨胀的问题,同时缩短了锂离子在氧化铜晶格内的扩散距离,提高了氧化铜材料的比容量和氧化铜作为负极材料的性能。In this study,copper oxide(CuO)nanosheet arrays are synthesized on a copper substrate by using the water bath method.The CuO nanosheet arrays formed after a 10-min reaction time exhibit the highest initial discharge specific capacity of 629.1 mA·h·g-1 and good cycle properties(79.6% retention after 100 cycles).When compared with the traditional bulk copper oxide anode materials,the CuO nanosheet array structure used as the negative electrode material for lithium ion batteries effectively solves the volume expansion during charging.Furthermore,it reduces the diffusion distance of the lithium ion in the CuO crystal,improving the specific capacity and performance of CuO used as the negative electrode materials.

关 键 词：材料 氧化铜 纳米片阵列 锂离子电池 

分 类 号：O469[理学—凝聚态物理]