The invention discloses a button
cell explosion-proof sealing structure, a button
cell and a packaging method thereof, and relates to the technical field of
cell structures. The explosion-proof sealing structure comprises a shell provided with a bottom surface and a side wall extending around the edge of the bottom surface, the edge of the upper end of the shell is connected with a cover plate in a sealed mode, the cover plate and the shell form a hollow containing cavity, and an explosion-proof hole is formed in the cover plate; an
electrode plate is arranged on the outer side of the cover plate, one side of the
electrode plate is integrally connected with an explosion-proof column matched with the explosion-proof hole, and the explosion-proof column extends into the containing cavity along the explosion-proof hole; and a sealing insulating layer is arranged between each of the
electrode plate and the explosion-proof column and the cover plate. The sealing structure is compact in connection, the explosion-proof hole is sealed through the explosion-proof column, when the air pressure in the containing cavity is increased, the explosion-proof column is ejected out to achieve the pressure relief effect of the explosion-proof hole, and the shell is prevented from expanding and exploding; and the edge of the explosion-proof hole integrally extends in the direction of the containing cavity to form a clamping sleeve, the explosion-proof column is clamped in the clamping sleeve, a sealing
insulation layer is arranged between the explosion-proof column and the inner wall of the clamping sleeve, and the sealing insulation performance is good.