锂离子电池纳米氧化镍负极的制备及应用  

Preparation and Application of Nano-NiO as Anode in Lithium-Ion Batteries

作　　者：白成栋[1] 陈嘉嘉[1] 张琦[1] 郑明森[1] 董全峰[1] 

机构地区：[1]厦门大学化学化工学院化学系,固体表面物理化学国家重点实验室,福建厦门361005

出　　处：《电化学》2011年第4期363-365,共3页Journal of Electrochemistry

基　　金：国家自然科学基金(200933005,20903077);973项目(2009CB220102);福建省科技项目(2008H0087);国家基础学科人才培养基金(J1030415)资助

摘　　要：应用水热法制备纳米氧化镍,观察样品形貌及研究电极电化学性能.结果表明,在水热合成过程中加入表面活性剂十二烷基硫酸钠(SDS),可形成疏松多孔、表面呈蜂窝状、颗粒均匀(100～200 nm)的纳米氧化镍.0.1 A/g电流密度下,该纳米NiO电极首周期放电比容量高达2385.7 mAh/g,100周期之后电极比容量仍然稳定于1100 mAh/g左右.2.0 A/g电流密度下,电极放电比容量为600 mAh/g.再调回0.1 A/g电流密度,电极放电比容量仍可恢复至1050 mAh/g.显示该电极优异的循环寿命和倍率性能.In this work,the nano-NiO material was prepared by hydrothermal method.The surface morphologies and electrochemical properties of nano-NiO material were investigated.The special nano-NiO material with porous surface assembling honeycombs（100~200 nm） was obtained by using surface active agents.The discharge capacity of nano-NiO electrode up to 2385.7 mAh/g was achieved at current density of 0.1 A/g in the first circle,while 1100 mAh/g could be maintained after 100 circles.At current density of 2.0 A/g,the discharge capacity of 600 mAh/g was obtained.And when the current density was reduced to 0.1 A/g,the discharge capacity was restored to 1050 mAh/g.The nano-NiO electrode exhibited excellent cycling performance and rate capability.

关 键 词：纳米氧化镍 锂离子电池 负极材料 

分 类 号：TM912[电气工程—电力电子与电力传动]