A Sine-Wave Heating Circuit for Automotive Battery Self-Heating at Subzero Temperatures

Self-heating is of extreme importance for improving the available capacity and lifetime of lithium-ion batteries in cold climates. However, few attempts have been done to achieve effective onboard self-heating for the batteries in electric vehicles. This paper derives a high-frequency sine-wave (SW)...

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Bibliographic Details
Published in:IEEE transactions on industrial informatics 2020-05, Vol.16 (5), p.3355-3365
Main Authors: Shang, Yunlong, Liu, Kailong, Cui, Naxin, Zhang, Qi, Zhang, Chenghui
Format: Article
Language:English
Subjects:
AC heating
Alternating current
Automobiles
Automotive engineering
Circuits
Cold weather
Converters
Design parameters
Electric vehicles
electric vehicles (EVs)
energy storage systems
Heat engines
Heating
Informatics
Lithium
Lithium-ion batteries
Low temperature
Rechargeable batteries
Resistance heating
resonant <named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX"> LC</tex-math> </inline-formula> </named-content> converters
Sine waves
thermoelectric model
Topology
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Summary:Self-heating is of extreme importance for improving the available capacity and lifetime of lithium-ion batteries in cold climates. However, few attempts have been done to achieve effective onboard self-heating for the batteries in electric vehicles. This paper derives a high-frequency sine-wave (SW) heater based on resonant LC converters to self-heat the automotive batteries at low-temperatures without the need of external heaters. To be specific, an interleaved-parallel topology is introduced to double the heating speed without extra damages to batteries compared to the single heater. Further, a corresponding thermoelectric model is developed to provide guidance for the optimal design of the parameters in the proposed SW heater. Experimental results show that with a high-frequency sinusoidal current motivated by the proposed heater, lithium-ion batteries could be effectively self-heated by the ohmic-loss and electrochemical heat. Moreover, the heating time could be significantly shortened through decreasing the characteristic impedance √(L/C) or increasing the ac-heating frequency.
ISSN:1551-3203
1941-0050
DOI:10.1109/TII.2019.2923446