BATTERY, AND ELECTRIC DEVICE

Embodiments of the present application provide a battery and an electrical device. The battery comprises: a box body (11) including an electrical cavity (11a); a battery cell (20) accommodated in the electrical cavity (11a) and provided with a pressure relief mechanism (213) on a first wall (21a) of the battery cell (20); a first passage (15) and a second passage (16), the first passage (15) and the second passage (16) being configured to be able to communicate with the inside of the battery cell (20) through the pressure relief mechanism (213) when the pressure relief mechanism (213) is actuated, wherein the first passage (15) is used to discharge the emissions discharged from the pressure relief mechanism (213) into the electrical cavity (11a), and the second passage (16) is used to discharge the emissions discharged from the pressure relief mechanism (213) out of the electrical cavity (11a). The battery and the electrical device of the embodiments of the present application can improve the safety of batteries.