Updated status of conductance/capacity correlation studies to determine the state-of-health of automotive and stand-by lead/acid batteries

Feder, D.O.; Hlavac, M.J.; McShane, Stephen J.

doi:10.1016/0378-7753(94)80014-6

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Cited by 17 publications

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Monitoring sealed automotive lead-acid batteries by sparse-impedance spectroscopy

2003

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A reliable diagnostics of lead-acid batteries would become mandatory with the induction of an improved power net and the increase of electrically assisted features in future automobiles. Sparse-impedance spectroscopic technique described in this paper estimates the internal resistance of sealed automotive lead-acid batteries in the frequency range 10 Hz-10 kHz, usually produced by the alternators fitted in the automobiles. The state-of-health of the battery could be monitored from its internal resistance. Keywords.Impedance spectroscopy; sealed lead-acid batteries; state-of-health; state-of-charge; internal resistance. ¶ Dedicated to Professor C N R Rao on his 70th birthday *For correspondence α State-of-charge of a battery is the fraction usually expressed as percentage of the full capacity of the battery that is still available for further discharge β A measurement that reflects the state-of-health of a battery, taking into account its charge acceptance, internal resistance, voltage and self-discharge

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