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Battery safety evaluation device, battery control device, battery safety evaluation method, program, control circuit, and power storage system
Battery safety evaluation device, battery control device, battery safety evaluation method, program, control circuit, and power storage system
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机译:电池安全性评价装置,电池控制装置,电池安全性评价方法,程序,控制电路以及蓄电系统
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摘要
A battery safety evaluation apparatus according to one aspect of the present invention includes a battery characteristic estimator, a heat amount estimator and safety index calculator. The battery characteristic estimator estimates an estimation value of an inner state parameter of a first battery on the basis of data on voltage and current of the first battery measured in charging or discharging. The heat amount estimator estimates a heat amount of the first battery upon change of an external temperature on the basis of first reference data which is at least indicating relationship between a heat amount of a secondary battery and the external temperature and is set to correspond to the first battery on the basis of the estimation value. The safety index calculator calculates a safety index regarding a temperature of the first battery upon change of the external temperature on the basis of the estimated heat amount.
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