Battery and battery pack

Abstract

A battery characterized in that it comprises: a housing body, wherein a pressure relief hole is arranged on a lower surface of the housing body; an electrical core, wherein the electrical core is arranged inside the housing body; and a lower support plate, wherein the lower support plate is arranged in the housing body, the lower support plate being arranged between the pressure relief hole and the electrical core; wherein the lower support plate has a first surface and a second surface arranged parallel to each other, the first surface facing the electrical core, while the second surface facing the pressure relief hole;where d×s1 / s2 = 0.5 mm to 60 mm is satisfied, where d denotes a distance between the lower support plate and a side surface of the housing body in mm, where s2 denotes an area of ​​the second surface in mm2, where s1 denotes an area of ​​a positive projection of the lower support plate onto the lower surface of the housing body in mm2.