水热法制备无定形ZnSnO3/C复合材料及其电化学性能研究  

Preparation and Electrochemical Properties of Amorphous ZnSnO_3/C by Hydrothermally Carbonization Method

作　　者：方国清[1] 张瑞雪[1] 刘伟伟[1] 夏丙波[1] 孙洪丹[1] 王海波[1] 吴晶晶[1] 金子信悟[1] 李德成[1] 

机构地区：[1]苏州大学化学电源研究所,江苏省锂离子电池材料重点实验室,江苏苏州215006

出　　处：《电化学》2013年第6期571-574,共4页Journal of Electrochemistry

摘　　要：采用葡萄糖水热碳化法制备了碳包覆无定形ZnSnO3复合材料(ZnSnO3/C),并利用采用X射线衍射、透射电镜、恒电流充放电测试和交流阻抗技术表征、观察与测试样品的结构、形貌以及电化学性能.实验结果表明,ZnSnO3/C复合材料具有典型的核壳结构,ZnSnO3/C复合料表现较高的比容量和优异的循环性能,100周期循环比容量仍保持659 mAh·g-1.The amorphous ZnSnO 3 @C composite was synthesized via a simple glucose hydrothermal and subsequent carbonization approach. The structure morphology and electrochemical property of composite were characterized by XRD, TEM and electrochemical measurements. Compared to bare ZnSnO3, the ZnSnO3 /C composite exhibited markedly enhanced lithium storage property and cycle performance, delivering a reversible capacity of 659 mAh·g^-1after 100 cycles at a current density of 100 mA·g^-1.

关 键 词：锂离子电池 负极材料 锡基氧化物 水热碳化法 电化学性能 

分 类 号：TM912.9[电气工程—电力电子与电力传动]