Secondary battery

摘要

A secondary battery may include a secondary battery, including, a case having an upper opening and an internal cavity, an electrode assembly disposed within the internal cavity of the case, a cap plate coupled to the case and sealing the upper opening, a collector plate coupled to the electrode assembly, a collector terminal coupled to the collector plate, the collector terminal including a rivet portion and terminal portion above a top surface of the cap plate, and a terminal plate positioned above the cap plate and coupled to the rivet portion of the collector terminal.

主权项

1. A secondary battery, comprising:
a case including an upper opening and an internal cavity; an electrode assembly disposed within the internal cavity of the case; a cap plate coupled to the case and sealing the upper opening; a collector plate coupled to the electrode assembly; a collector terminal coupled to the collector plate, the collector terminal including a rivet portion and a terminal portion, the rivet portion and the terminal portion being located above a top surface of the cap plate, the terminal portion including a threaded outer surface, the threaded outer surface having a diameter that is less than a diameter of an outermost surface of the rivet portion; and a terminal plate positioned above the cap plate and coupled to the rivet portion of the collector terminal, wherein the rivet portion includes a deformable peripheral wall that is adjustable from an upright position to an expanded position, the peripheral wall being spaced from a sloping surface of the terminal plate in the upright position, and the peripheral wall contacting the sloping surface of the terminal plate in the expanded position.