Rechargeable battery

摘要

A rechargeable battery includes an electrode assembly and a cap plate. The electrode assembly is located in a case of the battery, and the cap plate a cap plate is over an opening of the case. The battery also includes a terminal and a gasket. The terminal includes a plurality of sealing protrusions. The gasket is located between the terminal and cap plate and contacts the plurality of sealing protrusions. Together, the sealing protrusions and gasket establish a barrier which prevents electrolyte solution in the case from reaching and eroding the terminal.

主权项

1. A rechargeable battery, comprising:
a case; an electrode assembly in the case; a cap plate over an opening of the case; a lower insulating member between the cap plate and electrode assembly; a first terminal in the cap plate and including a plurality of sealing protrusions; and a first gasket between the first terminal and cap plate and contacting the plurality of sealing protrusions, wherein the lower insulating member is connected to the first terminal and wherein the sealing protrusions are at a level that is between an upper surface and a lower surface of the lower insulating member, and wherein the upper surface of the lower insulating member is between the gasket and the cap plate.