Influence of capacity fading on commercial lithium-ion battery impedance

T. Osaka*, S. Nakade, M. Rajamäki, T. Momma

*この研究の対応する著者

研究成果: Conference article査読

74 被引用数 (Scopus)

抄録

The impedance spectrum of prismatic commercial Li-ion batteries is measured at various states of charge before and after the charge-discharge cycles and storage. The measured impedance is interpreted with a previously proposed equivalent circuit made up of anode and cathode in which the cathode component is composed of two particle size factors. The values corresponding to the characteristics of both electrodes are obtained by a fitting technique. The obtained values suggest that the capacity fade of the Li-ion battery due to the cycles is mainly caused by the increase of interfacial resistance of the cathode and a decrease in the anode capacity. These results suggest the validity of the equivalent circuit to interpret the causes of capacity fade.

本文言語English
ページ(範囲)929-933
ページ数5
ジャーナルJournal of Power Sources
119-121
DOI
出版ステータスPublished - 2003 6 1
イベントSelected Papers Presented at the 11th IMLB - Monterey, CA, United States
継続期間: 2002 6 222002 6 28

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 物理化学および理論化学
  • 電子工学および電気工学

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