Housing assembly and battery

A battery comprising a housing assembly and a battery cell, wherein the battery cell is provided inside the housing body, two electrodes of the battery cell are respectively electrically connected to the housing body and the electrode column;

• wherein the housing assembly comprises:
• a housing body, an electrode column and an insulating part, wherein the housing body is provided with a mounting hole, the electrode column penetrates the mounting hole, the insulating part is provided between the housing body and the electrode column, the electrode column comprises a column body, the column body penetrates the mounting hole, the column body comprises a first end and a second end, the second end is provided inside the housing body, the first end is provided with a restricting part, the second end is provided with a riveting part, the restricting part and the riveting part are provided to jointly clamp the insulating part and the housing body, an end surface of the second end is provided with a groove, and the groove is adjacent to the riveting part;
• wherein the riveting part comprises a plurality of riveting sheets, the plurality of riveting sheets are provided in an annular pattern around a perimeter of the column body, a gap is provided between two adjacent riveting sheets;
• wherein a distance between two adjacent riveting sheets ranges from 1 mm to 20 mm.