Novel battery cover plate with aluminum ring structure

The utility model belongs to the technical field of lithium batteries, and provides a novel battery cover plate with an aluminum ring structure, which comprises an aluminum plate and an aluminum ring, a first through hole is formed in the aluminum plate in an up-down penetrating manner, an annular groove is formed in the upper end face of the aluminum plate, the annular groove is coaxially communicated with the first through hole, the aluminum ring is clamped in the annular groove, and a second through hole is formed in the aluminum ring. A pin is fixedly arranged on the outer side wall of the aluminum ring; the bottom ends of the pins are flush with the bottom end of the aluminum ring, the top ends of the pins are flush with the upper end face of the aluminum plate, the upper end face of the aluminum plate is provided with first receding grooves matched with the pins, and the pins are embedded into the first receding grooves. In the injection molding process of the battery cover plate, the front mold core is