Invention Grant
US09327611B2 Temperature elevating apparatus of secondary battery and vehicle equipped with same 有权
配备二次电池和车辆的升温装置

Temperature elevating apparatus of secondary battery and vehicle equipped with same
Abstract:
A temperature elevating apparatus of a secondary battery includes a ripple generator and a controller. Ripple generator is connected to secondary battery, and is configured to actively generate ripple current of a predetermined frequency in secondary battery. Controller controls ripple generator to elevate a temperature of the secondary battery by generating ripple current in secondary battery. Here, the predetermined frequency is set to be a frequency in a frequency region where an absolute value of an impedance of secondary battery relatively decreases based on frequency characteristics of the impedance of secondary battery.
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