Analysis of electrochemical impedance spectroscopy response for commercial lithium-ion batteries: modeling of equivalent circuit elements

MORALI U., EROL S.

TURKISH JOURNAL OF CHEMISTRY, cilt.44, sa.3, ss.602-613, 2020 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 44 Sayı: 3
  • Basım Tarihi: 2020
  • Doi Numarası: 10.3906/kim-1910-72
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.602-613
  • Anahtar Kelimeler: Impedance spectroscopy, rechargeable battery, equivalent circuit, state of charge, Taguchi method, TAGUCHI DESIGN, CELLS, DEGRADATION, CHARGE, OVERCHARGE, MECHANISM, STATE
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Electrochemical impedance spectroscopy measurements were performed to capture the physically meaningful parameters of commercially available 18650 cylindrical and 2032 coin cells by using the equivalent circuit model. The impedance response of the batteries was systematically investigated and discussed. A detailed analysis was achieved providing a determination of influential factors on the equivalent circuit parameters. The results suggested that the cell type tested here influenced the equivalent circuit elements profoundly. Taguchi analysis indicated that state-of-charge had the highest effect on the cathodic constant-phase-element exponent. The results contribute to full electrochemical analysis that is required for battery characterization.