RC equivalent circuit model of lumped parameters for lithium ion batteries in electric vehicles

doi:10.12028/j.issn.2095-4239.2019.0061

Energy Storage Science and Technology ›› 2019, Vol. 8 ›› Issue (5): 930-934.doi: 10.12028/j.issn.2095-4239.2019.0061

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RC equivalent circuit model of lumped parameters for lithium ion batteries in electric vehicles

REN Xiaoxia, GUO Wangna

College of Electronic and Electrical Engineering, Chongqing College of Arts and Sciences, Chongqing 402160, China

Received:2019-04-18 Revised:2019-04-29 Online:2019-09-01 Published:2019-09-01

Abstract

Abstract: This article studied the RC equivalent circuit model of lumped parameters for lithium-ion batteries in electric vehicles. On the base of the traditional battery models, this research creates a new dynamic equivalent circuit model of lithium-ion power battery considering the polarization effect and hysteresis voltage characteristics of battery. Model's parameters were identified by tests. The estimated error of this model is 2% through experimental analysis, which is more accurate than the traditional first-order and second-order models and simpler than the third-order RC model.

Key words: polarization effect, hysteresis voltage, equivalent circuit model

CLC Number:

TM615

REN Xiaoxia, GUO Wangna. RC equivalent circuit model of lumped parameters for lithium ion batteries in electric vehicles[J]. Energy Storage Science and Technology, 2019, 8(5): 930-934.

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RC equivalent circuit model of lumped parameters for lithium ion batteries in electric vehicles

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