Quick testing of batteries in lithium-ion battery packs with impedance-measuring technology

Kazuhiko Takeno, Masahiro Ichimura, Kazuo Takano, Junichi Yamaki, Shigeto Okada

研究成果: Contribution to journalArticle

43 引用 (Scopus)

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We discuss a rapid testing of capacity in Li-ion battery packs with impedance-measuring technology to evaluate their capability in mobile phones. Our measurements of the capacity and impedance at 1kHz for various kinds of battery packs conclusively proved that there is a strong correlation between capacity and impedance. It can be applied even when the pack consists of not only a Li-ion battery but also a Positive Temperature Coefficient (PTC) device and a protection circuit in-series, and this correlation is largely unaffected by the degree of charge. The results we obtained from measuring impedance revealed the possibility of quickly assessing degradation in Li-ion battery packs.

元の言語英語
ページ(範囲)67-75
ページ数9
ジャーナルJournal of Power Sources
128
発行部数1
DOI
出版物ステータス出版済み - 3 29 2004

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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