| 双等效电路模型在锂离子电池中的应用 |
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| 引用本文： | 杨博健,戴海峰,魏学哲,姜波.双等效电路模型在锂离子电池中的应用[J].电池,2019,49(2):116-120. |
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| 作者姓名： | 杨博健 戴海峰 魏学哲 姜波 |
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| 作者单位： | 同济大学汽车学院,上海,201804;同济大学汽车学院,上海201804;同济大学新能源工程中心,上海201804 |
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| 摘 要： | 同种电池的交流阻抗谱在不同老化条件下会呈不同变化的趋势,采用单一等效电路模型分析会造成部分阻抗拟合失真。采用二阶模型和一阶模型结合使用的思路,解决单一模型阻抗拟合失真问题。将这种多模型拟合方法应用到老化模夫识别中,使原有的老化模式识别方法在不同老化条件下都有较好的准确性。
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| 关 键 词： | 交流阻抗谱 等效电路模型 电池老化实验 |
Selection of equivalent circuit model of Li-ion battery in electrochemical impedance spectroscopy |
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| Yang Bo-jian,Dai Hai-feng,Wei Xue-zhe,Jiang Bo.Selection of equivalent circuit model of Li-ion battery in electrochemical impedance spectroscopy[J].Battery Bimonthly,2019,49(2):116-120. |
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| Authors: | Yang Bo-jian Dai Hai-feng Wei Xue-zhe Jiang Bo |
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| Affiliation: | (Tongji University,School of Automotive Studies,Shanghai 201804,China;TongjiUniversity,National Fuel Cell Vehicle & Powertrain System Research & Engineering Center,Shanghai,201804,China) |
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| Abstract: | The electrochemical impedance spectroscopy of the same type of Li-ion battery might show different variation trends.Analysis using a single equivalent circuit model would cause partial impedance fitting distortion.The two-order model and the one-order model were used together to solve the problem of single model impedance fitting distortion.The multi-model fitting method was applied to the degradation mode analysis,making it accurate under different aging conditions. |
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| Keywords: | electrochemical impedance spectroscopy equivalent circuit model battery aging experiment |
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