Temperature controlling system and method of battery

A temperature controlling system for a battery includes a converter, a DC linker, and an inverter. The converter includes a plurality of converter switches and an inductor. The converter is configured to be coupled to the battery to raise or drop a voltage output of the battery. The DC linker includes a capacitor and is configured to stabilize an output voltage of the converter. The inverter includes a plurality of inverter switches, at least one inductor, and an inductor switch coupled to the at least one inductor. The inverter is configured to invert the output voltage of the converter, wherein the inductor switch and at least one of the inverter switches are configured to form a current path for a current through the at least one inductor to the battery.