Due to their high energy density and long life,Lithium-ion batteries are widely applied in fields such as aerospace and smart driving.Accurate estimation of the state of charge(SOC)of a battery is critical.In recent years,SOC estimation methods based on battery equivalent models have been widely used because oftheir advantages of accurate estimation and easy understanding.This paper has elaborated on the classification of battery equivalent models,SOC estimation algorithms,and factors affecting SOC estimation from three aspects.Firstly,the common types of battery models and their characteristics were analyzed;secondly,the commonly used SOC estimation techniques based on battery models were reviewed;finally,the factors affecting the accuracy of SOC estimation and possible solutions were analyzed.The summary of this paper provides references for future research.
lithium-ion batteryequivalent modelstate of charge estimation
维普
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