锂离子电池负极CaSnO_3制备及性能  

Preparation and Characterization of CaSnO_3 Anode Material for Lithium Ion Batteries

作　　者：孙冉[1] 刘子庚[1] 蒋亚琪[1] 

机构地区：[1]厦门大学化学化工学院化学系,福建厦门361005

出　　处：《电化学》2011年第4期416-420,共5页Journal of Electrochemistry

基　　金：国家自然科学基金(No.21073145);福建省重点科技项目(No.2009Y0045)资助

摘　　要：应用水热法合成前驱物CaSn(OH)6,经高温煅烧而得CaSnO3.XRD、SEM、DSC-TGA表征其物相、表面形貌和相变过程,调节溶剂水和乙醇比例,可有效地控制前驱物的形态,从立方块到内凹立方块乃至枝状结构变化,高温煅烧前驱体可得到CaSnO3样品.CaSnO3电极比容量为334.4 mAh/g,呈现出优良的循环寿命.In this study the precursor CaSn（OH）6 was prepared via a hydrothermal process,and its composition,surface feature and phase-transition were characterized by XRD,SEM and DSC-TGA.The shapes of CaSn（OH）6 crystals were effectively controlled by adjusting the volume ratio of H2O and CH3CH2OH solvents.Perovskite CaSnO3 could be obtained by calcination of CaSn（OH）6 at 800 ℃.The reversible capacity of 334.4 mAh/g with good cycling stability could be achieved with the CaSnO3 electrode.

关 键 词：CaSnO3 煅烧 锂离子电池 

分 类 号：TM912.9[电气工程—电力电子与电力传动]