Transmission line models for evaluation of impedance response of insertion battery electrodes and cells

IF 5.4 Q2 CHEMISTRY, PHYSICAL Journal of Power Sources Advances Pub Date : 2021-02-01 DOI:10.1016/j.powera.2021.100047
Jože Moškon , Miran Gaberšček
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引用次数: 27

Abstract

Physics based transmission line models (TLMs) are a convenient tool for the analysis of the impedance response of electrochemical systems – the most prominent examples being double-layer capacitors, solar cells, and batteries. TLMs can provide a good quali- and quantitative evaluation of the main transport-reaction steps occurring in a given system - at a moderate mathematical effort. This mini review focuses on the theoretical development and application of TLM schemes in porous battery electrodes and other porous battery components. After a short historical overview of the main achievements in the field, we discuss in some detail the conventional TLM based on the de Levie's original proposal. Afterwards we present a couple of upgrades that address the deficiencies of the conventional model at low frequencies in which diffusion in electrolyte phases (in porous electrode and in separator) is supposed to be observed. We compare systematically the impedance responses of several TLMs and comment on their ability to simulate the measured impedance spectra. Simplifications and limitations of the discussed models are also considered. Finally, a comparison between the proposed TLMs and the output of the well-known Newman's porous electrode model is shown.

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用于评价插入式电池电极和电池阻抗响应的传输线模型
基于物理的传输线模型(TLMs)是分析电化学系统阻抗响应的方便工具,最突出的例子是双层电容器、太阳能电池和电池。tlm可以在适度的数学努力下,对给定体系中发生的主要传递反应步骤提供良好的定性和定量评价。本文主要综述了TLM方案在多孔电池电极和其他多孔电池组件中的理论发展和应用。在简要回顾了该领域的主要成就之后,我们详细讨论了基于de Levie最初建议的传统TLM。随后,我们提出了一些改进,以解决传统模型在低频率下的不足,在低频率下,电解质相(在多孔电极和分离器中)的扩散应该被观察到。我们系统地比较了几种tlm的阻抗响应,并评论了它们模拟测量阻抗谱的能力。还考虑了所讨论模型的简化和局限性。最后,将所提出的tlm与著名的Newman多孔电极模型的输出进行了比较。
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来源期刊
CiteScore
9.10
自引率
0.00%
发文量
18
审稿时长
64 days
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