Rechargeable battery having a short circuit plate

摘要

A rechargeable battery includes a case, an electrode assembly in the case, a terminal electrically connected to the electrode assembly, and a cap assembly sealing the case. The cap assembly includes a cap plate having a short circuit opening and a short circuit plate in the short circuit opening. The terminal includes a collector plate connected to the electrode assembly, a collector terminal connected to the collector plate and penetrating the cap plate, and a fastening terminal spaced apart from the cap plate. The fastening terminal includes a fastener engaged with the collector terminal, and an extender extending from the fastener. The extender is adjacent to the short circuit plate. The cap assembly also includes an insulation member between the cap plate and the fastening terminal, and a cover covering the extender.

主权项

1. A rechargeable battery, comprising:
a case; an electrode assembly in the case; a cap assembly sealing the case and comprising a cap plate having a short circuit opening, and a short circuit plate in the short circuit opening; and a terminal electrically connected to the electrode assembly comprising:
a collector plate electrically connected to the electrode assembly,a collector terminal electrically connected to the collector plate and extending through the cap plate, anda fastening terminal spaced apart from the cap plate and comprising a fastener, the fastener being engaged with the collector terminal, and an extender extending from the fastener, the extender being adjacent to the short circuit plate, the cap assembly further comprising an insulation member between the cap plate and the fastening terminal, the insulation member comprising a bottom portion, a first sidewall extending upward from the bottom portion, and a plurality of first coupling grooves in the first sidewall, and a cover covering the extender and being detachably coupled to the insulation member, the cover comprising a plane portion, a second sidewall extending downward from the plane portion, and a plurality of first coupling protrusions at the second sidewall engaged with the plurality of first coupling grooves.