Intrinsically-safe battery power supply for underground mining
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United States of America Patent
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Issued Date -
Aug 25, 2005
app pub date -
Jan 25, 2005
filing date -
Feb 19, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An intrinsically-safe battery power supply for electrical equipment in underground mining and in other areas exposed to the danger of explosion is disclosed. The power supply includes at least one chargeable storage battery cell disposed in a battery housing. At least one storage battery cell comprises a chargeable lithium storage battery cell and the battery housing is configured to be pressure-resistant and to receive all lithium storage battery cells in a manner so as to be protected from explosion. The pressure-resistant configuration of the battery housing enables the use of lithium storage battery cells in underground mining. Once the battery power supply fulfils all requirements of ignition protection certification, even modern types of lithium storage battery cell can be disposed in the battery housing.
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