Patent ID: 8920966
Filing Date: 2014-12-30
Classification: H01M,Y02E,Y02P

Abstract:
1. A battery, comprising: a package containing an electrode assembly therein, the package including a plate comprising an inner surface part that is depressed to form a recess; a current collector which electrically connects an external terminal whose at least partly is disposed outside of the package to the electrode assembly; a gasket interposed between an inner surface of the package and the current collector, an engagement receiving portion that expands upward from an upper surface of the cover around the external terminal, wherein the engagement receiving portion includes the recess formed in a depressed area of a lower surface of the cover, and wherein the gasket contains a portion of the engagement receiving portion which is contained in the recess, said portion of the engagement receiving portion being a contained portion such that corners of the contained portion fit in corners of the recess.