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Electrochemical Simulation for Limited-Discharge Current Prediction of Li-ion Secondary Cell Using High-Rate Discharge

고율 방전용 리튬 전지의 한계 방전 전류 예측을 위한 전기화학 시뮬레이션

  • Kim, Simon (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.) ;
  • Lee, Young Shin (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.)
  • 김성종 (충남대학교 기계설계공학과) ;
  • 이영신 (충남대학교 기계설계공학과)
  • Received : 2015.02.10
  • Accepted : 2015.06.10
  • Published : 2015.08.01

Abstract

Li-ion batteries are energy sources that are widely used in applications such as notebooks, cellular phones, power tools, and vehicles. They are devices in which stored chemical energy is changed to electrical energy by electrochemical reactions. They have a high energy density, small size, and are lightweight. In particular, power tools and vehicles require high charge/discharge rates. Therefore, in this paper, we perform electrochemical simulations using a commercial finite-element analysis program to determine the high discharge-rate characteristics of Li-ion cells. In addition, by performing high discharge-rate simulations, we found that the limited discharge current was 63 A. Based on the results obtained, we investigate the behavior of Li-ion cells with a high rate of discharge.

Keywords

Li-ion Secondary Cell;Electrochemical Simulation;Limit Discharge Current

References

  1. Linder, D. and Reddy, T.B., 2002, "Handbook of Batteries I," McGraw-Hill companies Inc.
  2. Linder, D. and Reddy, T.B., 2002, "Handbook of Batteries II," McGraw-Hill companies Inc.
  3. Kim, S. and Kim, D., 2013, "Study of Li-ion Diffusion and Phase Transition in Cathode of Li-ion Battery," Trans. Korean Soc. Mech. Eng. B, Vol.37, No.7, pp.665-667.
  4. You, S., Jung, J., Cheong, K.B. and Go, J., 2011, "Numerical Simulation of Lithium-ion Batteries for Electric Vehicles," Trans. Korean Soc. Mech. Eng. B, Vol.35, No.6, pp. 649-656. https://doi.org/10.3795/KSME-B.2011.35.6.649
  5. Sim, S.H., Gang, J.H., An, D., Kim, S.I., Kim, J.Y., and Choi, J.H., 2013, "Remaining Useful Life Prediction of Li-ion Battery Based on Charge Voltage Characteristics," Trans. Korean Soc. Mech. Eng. B, Vol.37, No.4, pp.313-322.
  6. Han, J., Park, J., Yu, S. and Kim, S., 2014, "One- Dimension Thermal Modeling of NiMH Battery for Thermal Management of Electric Vehicles," Trans. Korean Soc. Mech. Eng. B, Vol.38, No.3, pp.227-234.
  7. Newman, J., 1991, "Electrochemical Systems," 2nd ed., Prentice hall, New Jersey.
  8. COMSOL Multiphysics, 2008, "Rechargeable Lithium-ion Battery," Solved with COMSOL multiphysics 3.5a.
  9. Ang, W.F., Kwon, O.J. and Wang, C.Y., 2010, "Electro Chemical-thermal Modeling of Automotive Li-ion Batteries and Experimental Validation Using a Three-electrode Cell," International Journal of Energy Research, Vol.34, pp.107-115. https://doi.org/10.1002/er.1652
  10. Ole Valoen, L. and Reimers, J., 2005, "Transport Properties of LiPF6 Based Li-ion Battery Electrolytes," Journal of the Electrochemical Society, Vol.152, p.A882. https://doi.org/10.1149/1.1872737
  11. Wang, Y., Li, H., He, P., Hosono, E. and Zhou, H., 2010, "Nano Active Materials for Lithium-ion Batteries," The Royal Society of Chemistry 2010 Nanoscale, 2010, Vol.2, pp.1294-1305.