Impedance parameters and the state-of-charge. II. Lead-acid battery

Autor:	S. Sathyanarayana, M. L. Gopikanth
Rok vydání:	1979
Předmět:	Battery (electricity) Chemistry General Chemical Engineering Analytical chemistry Impedance parameters Capacitance Diffusion capacitance State of charge Materials Chemistry Electrochemistry Equivalent circuit Output impedance Atomic physics Electrical impedance
Zdroj:	Journal of Applied Electrochemistry. 9:369-379
ISSN:	1572-8838 0021-891X
DOI:	10.1007/bf01112492
Popis:	The determination of the state-of-charge of the lead-acid battery has been examined from the viewpoint of internal impedance. It is shown that the impedance is controlled by charge transfer and to a smaller extent by diffusion processes in the frequency range 15–100 Hz. The equivalent series/parallel capacitance as well as the a.c. phase-shift show a parabolic dependence upon the state-of-charge, with a maximum or minimum at 50% charge. These results are explained on the basis of a uniform transmission-line analog equivalent circuit for the battery electrodes.
Databáze:	OpenAIRE
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