Journal of Thermal Analysis and Calorimetry

, Volume 104, Issue 2, pp 561–567 | Cite as

A new charging mode of Li-ion batteries with LiFePO4/C composites under low temperature

  • Xiao Wei Zhao
  • Guo Yu Zhang
  • Lin Yang
  • Jia Xi Qiang
  • Zi Qiang Chen


Li-ion batteries with LiFePO4/C composites are difficult to be charged at low temperatures. In order to improve the low temperature performance of LiFePO4/C power batteries, the charge–discharge characteristics were studied at different temperatures, and a new charging mode under low temperature was proposed. In the new charging mode, the batteries were excited by current pulses with the charge rates between 0.75 C and 2 C, while the discharge rates between 3 and 4 C before the conventional charging (CC–CV). Results showed that the surface temperature of Li-ion battery ascended to 3 °C at the end of pulse cycling when the environment temperature was −10 °C. Comparing with the conventional charging, the whole charge time was cut by 36 min (23.4%) and the capacity was 7.1% more at the same discharge rate, respectively.


Charging mode Li-ion battery LiFePO4 Low temperature 



This study is supported by the National Basic Research Programme of China (Grant No. 2007CB209707).


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2010

Authors and Affiliations

  • Xiao Wei Zhao
    • 1
  • Guo Yu Zhang
    • 1
  • Lin Yang
    • 1
  • Jia Xi Qiang
    • 1
  • Zi Qiang Chen
    • 1
  1. 1.School of Mechanical EngineeringShanghai Jiao Tong UniversityShanghaiChina

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