Improvement of li-ion battery discharging performance by pulse and sinusoidal current strategies

Liang Rui Chen, Jin Jia Chen, Chun Min Ho, Shing Lih Wu, Deng Tswen Shieh

Research output: Contribution to journalArticle

27 Citations (Scopus)


In this paper, the ac impedance analysis is used to explore the optimal discharging frequency for a Li-ion battery. Experiments indicate that the optimal discharging frequency is at the minimum ac impedance frequency f Zmin for a conventional pulse-current (PC) discharging. In addition, a sinusoidal current (SC) discharging strategy is also proposed to achieve better performances. This SC discharging strategy improves the discharging capacity, discharging efficiency, and rising temperature of the Li-ion battery by about 1.3%, 1.32%, and 41.9%, respectively, as compared with the traditional constant-current discharging.

Original languageEnglish
Article number6365309
Pages (from-to)5620-5628
Number of pages9
JournalIEEE Transactions on Industrial Electronics
Issue number12
Publication statusPublished - 2013 Jan 1


All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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