CuO微米梭的制备及其电化学性能研究  

Study of Preparation and Electrochemical Property of CuO Micro-Shuttles

作　　者：程树青[1,2] 陈友存[1] 张元广[1] 

机构地区：[1]安庆师范学院化学化工学院,安徽安庆246011 [2]安庆职业技术学院电子信息系,安徽安庆246003

出　　处：《安庆师范学院学报（自然科学版）》2015年第4期81-84,共4页Journal of Anqing Teachers College(Natural Science Edition)

基　　金：国家自然科学基金(21371009)

摘　　要：尽管各种各样的Cu O纳米结构已被广泛应用于锂离子电池负极材料的研究,但将Cu O微米梭作为锂离子电池负极材料却鲜有报道。运用简单的溶剂热法制备大量的Cu O微米梭,并用作锂离子电池负极材料。实验表明,Cu O微米梭在电流密度为100 m A g-1下充放电循环100次后,放电容量依然保持在484 m Ah g-1。Cu O微米梭优异的电化学性能归功于其独特的梭形结构。这种结构在锂离子电池充放电过程中可以缩短锂离子和电子的传输距离,缓解体积膨胀效应。Though lots of various Cu O nanostructures have been extensively investigated as anode materials for lithium ion batteries（ LIBs）,there are few reports on the application of Cu O micro-shuttles as anode materials for LIBs. In this article,scalable synthesis of Cu O micro-shuttles is achieved through a facile solvothermal process. When investigated as anode materials for LIBs,the Cu O micro-shuttles deliver a high discharge capacity of 484 m Ah g-1over 100 cycles at a current density of 100 m A g- 1. The improved electrochemical performance can be attributed to its unique shuttle-like structures,which largely reduce the diffusion path of lithium ions and electrons,and also buffer volume expansion during the charge / discharge processes.

关 键 词：电化学 微米梭 CUO 锂离子电池 

分 类 号：TB383[一般工业技术—材料科学与工程]