Lithium-ion battery software safety protection |
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Authors: | Tsenter B Golod M |
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Institution: | Total Battery Manage. Inc., USA; |
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Abstract: | Production Li-ion batteries include hardware and software safety protection. The hardware protection includes PTC (positive temperature coefficient) thermistor switch, electrical circuit disconnect and rupture vent. The software protection involves a charging algorithm (charging to ultimate voltage), which is used with internal electrical circuitry (cell voltage control and equalization circuit). This paper discusses a specific charging algorithm and additional software protection features associated with hard, soft and chemical shunt recognition |
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