作　　者： ; ; (刘煦）; (邱仕洲）;

机构地区： 华南师范大学化学与环境学院化学系

出　　处： 《电池》 2003年第5期326-327,共2页

摘　　要： 介绍了文献中提出过的6种描述锂离子在正负极脱嵌过程的交流阻抗等效电路模型、恒相元件模型、修正的Randels模型、吸附模型、Voigt模型、修正后的FMG模型、修正的Voigt FMG模型。分析比较了这6种模型所表示电极过程的物理化学意义,认为修正的Voigt FMG模型能较清楚的描述锂离子在锂离子电池正负极中的脱嵌过程。 Six types of AC impedance models for deinsertion and insertion of Li+ in anode and cathode of Liion battery were introduced. They included CPE model, modified Randles model, adsorption model, Voigt model, modified FMG model, and modified VoigtFMG model. Meanings of physicochemical performance represented by the elements in these 6 models was analyzed. It was found that the modified VoigtFMG model could describe the process of deinsertion and insertion of Li+ in anodic and cathode active materials of Liion battery.

关 键 词： 锂离子电池 交流阻抗模型 锂离子嵌脱 等效电路 正极 负极

领　　域： [电气工程]