Button cell and manufacturing method thereof and electronic equipment

A button cell, comprising:

• a housing, an electrode assembly and a covering member, wherein an accommodating cavity is disposed in the housing, the electrode assembly is located in the accommodating cavity, and the housing is provided with a liquid injection hole for injecting electrolyte into the accommodating cavity;
• an outer surface of the housing is provided with a recessed portion, which is recessed towards an inner side of the accommodation cavity, and the recessed portion is located at an orifice of the liquid injection hole and communicated with the liquid injection hole;
• the covering member is welded to an outer side of the housing to cover the recessed portion and the liquid injection hole;
• the housing comprises a lower housing and a cover plate assembly, the lower housing and the cover plate assembly enclosing together to form the accommodation cavity;
• the lower housing comprises a bottom wall and a side wall surrounding the bottom wall, a bottom end of the side wall is connected with the bottom wall;
• the cover plate assembly comprises a head cover and a conductive member, the head cover is connected to a top end of the side wall and is provided with a through hole, the through hole is covered by the conductive member, and the conductive member is connected with the head cover in an insulated manner;
• and the electrode assembly comprises a first tab and a second tab, the first tab is welded with the conductive member, and the second tab is welded with the bottom wall;
• the conductive member comprises a boss portion, and the boss portion is arranged to correspond to the through hole of the head cover and protrudes beyond an outer side of other parts of the conductive member.