纳米SnO_2和SnO的制备及其电化学性能  

Preparation and electrochemical properties of nano-sized SnO_2 and SnO

作　　者：黄峰[1] 詹晖[2] 周运鸿[2] 刘秀然[1] 

机构地区：[1]武汉科技大学化工与资源环境学院,湖北武汉430081 [2]武汉大学化学与分子科学学院,湖北武汉430072

出　　处：《电池》2005年第6期417-419,共3页Battery Bimonthly

基　　金：湖北省教育厅资助项目(Z200511004)

摘　　要：用流变相法制备了锂离子电池负极材料纳米SnO2和SnO.用恒流充放电和慢扫描循环伏安等方法考察了试样的电化学性能,结果表明:试样的循环性能和贮锂容量对充放电电压区间很敏感;当充放电电压区间在0.01～1.20 V时,Li/SnO2(SnO)电池的首次贮锂容量都超过了600 mAh/g,循环20次后的容量保持率分别可达90%和83%.Nano-sized SnO2 and SnO anode materials for Li-ion batteries were prepared by the rheological phase reaction method. The electrochemical performance of the samples was studied by the constant current charge-discharge and the slow scan cyclic vohammetry methods. The results indicated that the capacity and the cycle ability of the samples were sensitive to the voltage range of charge-discharge. When the voltage range was from 0.01 V to 1.20 V, the initial reversible capacity of Li/SnO2 （SnO） cells exceeded 600 mAh/g, the capacity retention index achieved 90% and 83% respectively for Li/SnO2（SnO） cells after 20 cycles.

关 键 词：锂离子电池 负极材料 锡氧化物 流变相反应 

分 类 号：TM912[电气工程—电力电子与电力传动]