聚吡咯／CaSnO3锂电池负极材料的研制和应用  

PREPARATION AND APPLICATION OF PPy/CaSnO_3 Li-ION BATTERY ANODE MATERIALS

作　　者：张治红[1] 李彦山[1] 闫福丰[1] 彭东来[1] 李超[1] 

机构地区：[1]河南省表界面重点实验室,郑州轻工业学院,郑州450002

出　　处：《工程塑料应用》2011年第3期51-55,共5页Engineering Plastics Application

基　　金：国家自然科学基金项目(20704039);河南省高校科技创新人才支持计划项目(2010HASTIT023);河南省国际科技合作计划项目(094300510078)

摘　　要：采用软化学方法制备出CaSnO3立方晶体,接着将其放入等离子体增强化学气相积淀仪(PECVD)进行吡咯气体辉光放电,使等离子体聚吡咯(PPy)沉积在CaSnO3表面上,获得PPy/CaSnO3复合材料。采用傅里叶转换红外光谱对其化学结构进行表征;利用X射线衍射仪和场发射扫描电子显微镜对CaSnO3改性前后的晶格结构和几何形状进行比较;采用热重分析法考察了复合材料的热稳定性。在此基础上,同时将CaSnO3和PPy/CaSnO3作为锂离子电池的负极材料,制作成双极扣式电池,采用电池充放电仪考察它们的充放电性能,结果显示PPy/CaSnO3的充放电容量都比CaSnO3提高一倍多。The CaSnO3 cubic crystal prepared using a soft chemistry method was modified by the glue discharge of pyrrole vapor in the plasma enhanced chemical vapor deposition （PECVD） to form the composite of polypyrrole （PPy）/CaSnO3. The chemical structure of PPy/CaSnO3 was characterized by Fourier transform infrared spectroscopy. The lattice structure and geometric shape of CaSnO3 before and after being modified were investigated by X - ray diffraction spectroscopy and scanning electron microscope, respectively. Moreover, thermal gravity analyzer was used to analyze the thermo- stability of PPy/CaSnO3. Based on these investigations, CaSnO3 and PPy/CaSnO3 were applied simultaneously as the battery anode material to prepare the bipolar button cell. Charge - dis- charge test showed that the capacity of the battery assembled with PPy/CaSnO3 composite was 100 percent higher than that of the battery assembled with CaSnO3.

关 键 词：聚吡咯 CaSnO3 等离子体聚合 充放电容量 

分 类 号：TQ028.8[化学工程]