Secondary battery and electric equipment

The utility model provides a secondary battery and electric equipment, including: a housing, the housing is formed by bending or bending a plate-shaped object having two opposite side edges and welding the two opposite side edges of the plate-shaped object, the two side edges are welded to form a welding portion extending along the length direction of the housing; the battery cell is arranged in the shell; and the heat insulation structure is arranged between the battery cell and the welding part. According to the secondary battery and the electric equipment, the battery cell and the welding part are separated through the heat insulation structure, when the battery cell is subjected to thermal runaway, impact airflow and heat generated on one side of the battery cell can be blocked, blocking protection is formed on the welding part of the shell, the welding part is prevented from being damaged under the action of impact force and heat, and the service life of the battery cell is prolonged. And the risk that t