Rechargeable battery

摘要

A rechargeable battery includes an electrode assembly having a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode; a case housing the electrode assembly, the case having an opening; a cap assembly including a cap plate coupled to the opening of the case and a vent member on the cap plate adapted to discharge a gas from the case; and a separation member located between the electrode assembly and the cap plate to prevent the electrode assembly from significantly moving toward the cap plate.

主权项

1. A rechargeable battery comprising:
an electrode assembly comprising a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode; a case housing the electrode assembly, the case having an opening; a cap assembly comprising a cap plate coupled to the opening of the case, a vent member on the cap plate adapted to discharge a gas from the case, and at least one terminal protruding from the cap plate; and a separation member located between the electrode assembly and the cap plate to prevent the electrode assembly from significantly moving toward the cap plate, wherein the separation member comprises an interception plate generally aligned with the vent member, the interception plate having opposing planar surfaces connected by a lateral edge, and at least one support plate fixed to the interception plate and protruding from the interception plate in a first direction to separate the interception plate from the cap plate, wherein the interception plate is entirely continuous at all areas, wherein the at least one support plate extends past the lateral edge of the interception plate in a second direction perpendicular to the first direction, and wherein the separation member is entirely spaced from the at least one terminal.