Impedance Characterization of the Film Formation Process at the Graphite Anodes

作     者：Bo Hua DENG Yong Fang LI Hua Quan YANG 

作者机构：Center for Molecular ScienceInstitute of ChemistryChinese Academy of SciencesBeijing 100080 Department of ChemistryPeking UniversityBeijing 100875 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2000年第11卷第10期

页      面：915-918页

核心收录：

学科分类：081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 

基　　金：the National 863 project (KJ951-A1-501) 

主　　题：electrochemical impedance spectroscopy surface film graphite anodes Li-ion battery 

摘      要：In this paper, the formation mechanism of the passive SEI film at the natural graphite anodes was investigated with tilt: electrochemical impedance spectroscopy (EIS). A characteristic semicircle was observed in the lower frequency range of the EIS spectrum for the irreversible charge process (lithium intercalation) at ca. 0.75V, 0.40V and 0.20V.