Method and apparatus for detection and control of thermal runaway in a battery under charge
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United States of America Patent
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Nov 12, 1996
Grant Date -
N/A
app pub date -
Mar 17, 1995
filing date -
Mar 17, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A thermal runaway detection apparatus is provided for use during charging of a battery. The thermal runaway detection apparatus includes circuitry for determining internal resistance (impedance) or conductance (admittance) of the battery under charge. Detection circuitry detects an increase in internal battery conductance or a decrease in internal battery resistance and provides an output. The output is indicative of a thermal runaway condition in the battery. The circuitry can be used to provide feedback which controls charging of the battery.
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