Battery device and power-consuming device

Abstract

Battery device characterized in that it comprises: at least two individual batteries arranged side by side, each individual battery comprising: a battery body having a first wall, the battery body comprising a terminal pin arranged on the first wall; an insulating pad attached to the first wall, the insulating pad having a clearance bore and an opening along its thickness direction, the terminal pin being guided through the clearance bore, the first wall remaining visible from the opening; an insulating adhesive filled into the opening; a busbar arranged on the side of the insulating pad facing away from the battery body and electrically connected to the terminal pins of each of the two individual batteries;a connecting strip, which is also arranged on the side of the insulating pad facing away from the battery body, wherein the orthogonal projection of the opening from the insulating pad of each individual battery onto the first wall overlaps at least partially with the connecting strip, wherein the first wall and the connecting strip of each battery body are connected to each other by the insulating adhesive; wherein the terminal pin is welded to the busbar and forms a weld mark, wherein the area of ​​the end face of the terminal pin facing one end of the busbar is S1, wherein the area of ​​the weld mark is S2, wherein the distance between the weld mark and the opening along the longitudinal direction of the first wall is a, wherein S1, S2 and a satisfy the relationship: 0.015 mm⁻¹ ≤ S2 / (S1 × a) ≤ 0.09 mm⁻¹.