Electrochemical impedance characteristics at various conditions for commercial solid–liquid electrolyte lithium-ion batteries: Part 1. experiment investigation and regression analysis

Fei Feng, Rui Yang, Jinhao Meng, Yi Xie, Zhiguo Zhang, Yi Chai and Lisha Mou

Energy, 2022, vol. 242, issue C

Abstract: Solid–liquid electrolyte lithium-ion batteries (SLELBs) have good commercial viability in electric vehicle applications because they combine the safety of solid electrolyte lithium-ion batteries with the high ionic conductivity of liquid electrolyte lithium-ion batteries (LELBs). The safe and efficient operation of electric vehicles is inseparable from the key battery management algorithms such as battery state of charge (SOC), state of health and state of power estimation. In the process of designing the battery management algorithms for SLELBs, it is essential to have an accurate understanding of battery behavior under different influencing factors and build a high-fidelity battery model. Electrochemical impedance spectroscopy (EIS) can be used to study the electrode process dynamics and ion transport mechanism in lithium-ion batteries. However, it can be a huge challenge to use EIS to experiment and analyze the characteristic impedances of SLELBs under the full-scale factors, and to construct the battery model and simulate the battery impedance under the premise of a reasonable number of tests.

Keywords: Lithium-ion battery; Solid–liquid hybrid electrolyte; Electrochemical impedance spectroscopy; State of charge; Temperature (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:242:y:2022:i:c:s0360544221031297

DOI: 10.1016/j.energy.2021.122880

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