Effect of state of charge on impedance spectrum of sealed cells Part II: Lead acid batteries

Autor: J. B. Ockerman, J. J. Kelley, A. J. Salkind, V. V. Viswanathan
Rok vydání: 1995
Předmět:
Zdroj: Journal of Applied Electrochemistry. 25:729-739
ISSN: 1572-8838
0021-891X
DOI: 10.1007/bf00648628
Popis: Alternating current impedance spectroscopy (ACIS) was performed on commercial sealed lead acid batteries. A method previously developed in the literature was modified to determine the state of charge of sealed lead acid cells by obtaining the impedance spectrum in a wide frequency range. The data were sensitive to state of charge at low frequencies. A modified Randles' circuit was used to fit the impedance data. The effect of the state of charge on the equivalent circuit parameters was determined.
Databáze: OpenAIRE