US Patent 10162014 Battery state determining device
Patent 10162014 was granted and assigned to Panasonic on December, 2018 by the United States Patent and Trademark Office.
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A battery state determining device includes a voltage measuring part, a remaining capacity estimating part, an internal resistance measuring part, a calculating part, and an estimating part. The voltage measuring part measures an open-circuit voltage of a storage battery. Based on the measured open-circuit voltage, the remaining capacity estimating part estimates a remaining capacity of the storage battery. The internal resistance measuring part measures an internal resistance in the storage battery. Based on the measured internal resistance, the calculating part calculates a degradation rate of the internal resistance. Based on the estimated remaining capacity and the calculated degradation rate of the internal resistance, the estimating part performs first estimation on a degradation state of the storage battery.
US Patent 10162014 Battery state determining device
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