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Caractérisation de nouveaux modes de maintien en charge pour batteries stationnaires de secours

Abstract : Lead-acid batteries are commonly used in stand-by applications. Also, they should be kept in full state-of-charge. Floating is the traditional charging method, in which case batteries are charged under constant voltage.
Various studies were conducted with SLI batteries - the less expensive on the market – involving electrodes self-discharge kinetics, overvoltage effects on state-of-charge and corrosion, charge aptitude.
Results enable a better understanding of specific mechanisms pertaining to lead-acid batteries, of complete charge, OCV, and of a model for capacity loss during ageing. A new charging method is also introduced, reducing overcharge by half. This method consists in the application of a low current over long periods - one order under traditional floating current - and over short periods at elevated level. This method is additionally cost-effective: low-cost lead-acid batteries, low or no maintenance and improved longevity.
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Contributor : Guillaume Dillenseger <>
Submitted on : Wednesday, April 20, 2005 - 6:11:57 PM
Last modification on : Saturday, April 20, 2019 - 1:23:46 AM
Long-term archiving on: : Friday, April 2, 2010 - 9:55:22 PM

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  • HAL Id : tel-00008901, version 1

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Guillaume Dillenseger. Caractérisation de nouveaux modes de maintien en charge pour batteries stationnaires de secours. Energie électrique. Université Montpellier II - Sciences et Techniques du Languedoc, 2004. Français. ⟨tel-00008901⟩

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