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Automotive Engineering ›› 2019, Vol. 41 ›› Issue (5): 571-581.doi: 10.19562/j.chinasae.qcgc.2019.05.014

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Research Progress on Low-temperature Characteristics and HeatingTechniques of Vehicle Lithium-ion Battery

Zhu Jiangong1,2, Sun Zechang1, Wei Xuezhe1, Dai Haifeng1, Fang Qiaohua1, Tang Xuan1   

  1. 1.Clean Energy Automotive Engineering Center & School of Automotive Studies, Tongji University, Shanghai 201804;
    2.KIT, IAM-ESS, Germany, Karlsruhe 76344
  • Received:2018-04-24 Published:2019-06-05

Abstract: In view of the deterioration of power characteristics and the lowering of charging and discharging efficiencies in traction battery, hampering the further development of electric vehicles , the tests of charging , discharging and electrochemical impedance spectroscopy characteristics are carried out on traction batteries with different material systems and specifications to analyze the key factors affecting the low-temperature performances of Li-ion traction batteries on one hand, and a comprehensive preview is conducted on the current research progress in low-temperature heating technology from the angle of traction battery thermal management on the other hand, aiming at providing a guidance for improving the low-temperature performance and the further research on low-temperature thermal management technique of traction batteries.

Key words: electric vehicles, lithium-ion batteries, low temperature performances, heating techniques, thermal management