BATTERY SYSTEM AND AUTOMOBILE

摘要

Disclosed is a battery system wherein safety of a lithium secondary battery can be enhanced by efficiently deactivating (inactivating) lithium metal deposited on a negative electrode of the lithium secondary battery. Also disclosed is an automobile. Specifically disclosed is a battery system (6) comprising a lithium ion secondary battery (100) and a temperature control unit (20) for controlling the temperature of the lithium ion secondary battery (100). The temperature control unit (20) performs such a control that the temperature T of the lithium ion secondary battery (100) is maintained within the following range: 55°C < T < 65°C, for a predetermined time.