State of charge indicators for a battery
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United States of America Patent
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Nov 9, 1999
Grant Date -
N/A
app pub date -
Mar 3, 1998
filing date -
Mar 3, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to state of charge indicators for a battery. One aspect of the present invention utilizes expansion and contraction displacements of an electrode plate of a battery to gauge the state of charge in the battery. One embodiment of a battery of the present invention includes an anodic plate; a cathodic plate; an electrolyte in contact with the anodic and cathodic plates; plural terminals individually coupled with one of the anodic and cathodic plates; a separator intermediate the anodic and cathodic plates; an indicator configured to indicate an energy level of the battery responsive to movement of the separator; and a casing configured to house the anodic and cathodic plates, electrolyte, and separator.
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