中文摘要：

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PPVCaSnO3的充放电容量都比CaSnO3提高一倍多。

英文摘要：

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.