This article presents a frequency-variable resonant self-heating technique for improving the heating speed of lithium-ion batteries at very low temperatures. In contrast to the conventional heating method with a fixed current and frequency, the proposed technique can increase the battery heating current by determining the minimum impedance of the lithium-ion batteries. Then, through a variable charging/discharging frequency operation, this technique can increase the heating speed without inducing a temperature plateau because of impedance reduction. A lithium-ion battery with improved self-heating performance at low temperatures was developed and used to verify the proposed self-heating technique. A simulation model and self-heating device (dc/dc converters) were also designed and tested at –30-°C ambient temperature. The proposed frequency-variable resonant self-heating technique achieved a heating speed four times faster (from 2784 s to 717 s) than the conventional self-heating technique. Thus, lithium-ion batteries can be used at cryogenic temperatures (–30 °C) by quickly raising the battery temperature with this technique.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Frequency-Variable Resonant Self-Heating Technique for Lithium-Ion Batteries at Low Temperature


    Contributors:


    Publication date :

    2022-08-01


    Size :

    6569547 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Alternating current self-heating method for variable amplitude and variable frequency of lithium ion battery at low temperature

    LI BINHUA / HUANG WENJIE / LIAO CHANGJIANG et al. | European Patent Office | 2024

    Free access


    Systems and methods for resonant heating of batteries

    XU YANG / WANG JIYAO / LI SILONG et al. | European Patent Office | 2022

    Free access


    Synergized Heating and Optimal Charging of Lithium-Ion Batteries at Low Temperature

    Cao, Wanke / Xu, Xin / Wei, Zhongbao et al. | IEEE | 2023