【摘要】 应用Ｘ射线衍射分析（ＸＲＤ）、Ｘ射线光电子能谱分析（ＸＰＳ）和三角波电位扫描研究了Ｌｉ／α－Ｓｎ（ＨＰＯ４）２电池的阴极反应机理．实验结果表明，电池反应的实质是锂在正极内进行电化学嵌入，并在达到一定的嵌入度后析出新相Ｓｎ．应用电化学暂态方法测得嵌入的锂离子于正极内部的化学扩散系数约为１０－１２～１０－１３ｃｍ２·ｓ－１．更多还原

【Abstract】 The discharge mechanism of Li/αSn(HPO4)2 cell has been investigated by means of Xray diffraction, XPS and cyclic voltammetry methodes. It has been shown that the electrochemical intercalation reation exists in the cathode material. There is a new phase after some degree of intercalation. With potential step and galvanostatic techniques, the chemical diffusion cofficients of Li+ in LixSn(HPO4)2 is estimated to be 10-12～10-13 cm2·s-1.更多还原