A method of estimating a battery life includes: for a secondary battery having a degradation rate R when X days have elapsed after initial charge of the secondary battery, calculating a degradation estimation value (X+Y) days after the initial charge from degradation master data, the degradation master data being identified with use of conditions of temperature T provided for the calculation and a battery state S provided for the calculation; and deriving number of elapsed days Xcorr giving the degradation rate R based on the identified degradation master data, and calculating the degradation estimation value (Xcorr+Y) days after the initial charge from the identified degradation master data.
METHOD OF ESTIMATING BATTERY LIFE, BATTERY LIFE ESTIMATION DEVICE, ELECTRIC VEHICLE, AND ELECTRIC POWER SUPPLY APPARATUS
12.07.2018
Patent
Elektronische Ressource
Englisch
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