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Article | REF: D3323 V1

Electric batteries - Activatable batteries

Author: Christian SARRAZIN

Publication date: May 10, 2002 | Lire en français

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    4. Lead dioxide batteries. Electrolyte: fluoroboric acid

    4.1 General

    In some battery applications, the user is looking for a long storage life (over a decade, for example), a very small volume (a few tens to a hundred cubic centimeters), a short activation time (several tens of milliseconds to a second), low cost and can make do with a short discharge time (a few seconds to a minute or a little more). It is possible to use the lead-lead dioxide couple featuring an electrolyte consisting of fluoroboric acid (HBF 4 ). Given the size of the battery, the inactive parts of the battery become predominant, and mass energies are low: on the order of one watt-hour per kilogram of battery.

    Typical applications for these batteries are proximity fuses and intelligent artillery projectiles,...

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