介电谱
电阻抗
电池(电)
电化学动力学
等效电路
材料科学
电化学电池
动力学
放松(心理学)
扩散
电化学
反褶积
分析化学(期刊)
电极
化学
计算机科学
电气工程
电压
热力学
工程类
物理
物理化学
功率(物理)
心理学
社会心理学
量子力学
色谱法
算法
作者
Deyang Qu,Wei-xiao Ji,Huainan Qu
标识
DOI:10.1038/s43246-022-00284-w
摘要
Abstract Electrochemical impedance spectroscopy provides information on the steady state of an electrochemical redox reaction and its kinetics. For instance, impedance is a very useful technique to investigate kinetics in batteries, such as diffusion processes or charge-transfer reaction dynamics during battery operation. Here, we summarize procedures for conducting reliable impedance measurements on a battery system, including cell configurations, readiness of a system for impedance testing, validation of the data in an impedance spectrum, deconvolution of electrochemical processes based on the distribution of relaxation time and equivalent circuit fitting of the impedance spectrum. The aim of this paper is to discuss key parameters for accurate and repeatable impedance measurements of batteries.
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