Power supply device and vehicle

摘要

A power supply device mounted to a hybrid vehicle includes: a capacitor that is chargeable/dischargeable; an electric power input/output unit for inputting/outputting electric power between the capacitor and a charge/discharge device installed external to the hybrid vehicle; a temperature sensor detecting a temperature of the capacitor; and a control device increasing the temperature of the capacitor by performing at least one of charging from the charge/discharge device to the capacitor and discharging from the capacitor to the charge/discharge device when the control device determines based on a detection result of the temperature sensor that the temperature of the capacitor is required to be increased. Thereby, the temperature of the capacitor can be increased without causing a load such as an inverter to consume electric power.