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 Liion battery were introduced. They included CPE model, modified Randles model, adsorption model, Voigt model, modified FMG model, and modified VoigtFMG model. Meanings of physicochemical performance represented by the elements in these 6 models was analyzed. It was found that the modified VoigtFMG model could describe the process of deinsertion and insertion of Li+ in anodic and cathode active materials of Liion battery.
出处
《电池》
CAS
CSCD
北大核心
2003年第5期326-327,共2页
Battery Bimonthly
基金
广东省自然科学基金(011443)
广东省重点教师资助项目(Q02088)
