The embodiment of the utility model discloses a battery device and
electric equipment. The battery device includes: a
battery cell including a housing and an
electrode assembly, a first wall of the housing and the
electrode assembly being disposed opposite to each other in a first direction; the first wall comprises a groove structure and a connecting area, the groove structure is recessed towards the interior of the
battery cell relative to the connecting area along a first direction, and the surface, facing the interior of the
battery cell, of the groove structure protrudes out of the surface, facing the interior of the battery
cell, of the connecting area; the battery
monomer further comprises a pressure relief mechanism arranged in the connecting area; the isolation part is located on the side, away from the interior of the battery
monomer, of the first wall in the first direction, a first protruding structure protruding towards the groove structure is arranged on the side, facing the first wall, of the isolation part, and at least part of the first protruding structure is contained in the groove structure. According to the battery device and the
electric equipment provided by the embodiment of the invention, the pressure relief efficiency of the battery monomers can be improved, and the reliability of the battery device is further improved.