Patent ID: 9059456
Filing Date: 2015-06-16
Classification: H01M,Y02E

Abstract:
1. A rechargeable battery, comprising: an electrode assembly formed by winding a positive electrode and a negative electrode and a separator therebetween; a case accommodating the electrode assembly; a cap plate sealing an opening at one side of the case, the cap plate including a terminal hole therethrough; an electrode terminal in the terminal hole of the cap plate, the electrode terminal extending to an outside from an inside of the case and being connected to the electrode assembly; and a terminal cap including an electrical insulating material, the terminal cap covering the electrode terminal from the outside of the case, wherein the terminal cap has a through-hole extending perpendicularly from a plane of an upper side of the electrode terminal, the through-hole exposing only a portion of the upper side of the electrode terminal, wherein the through-hole is centered in the terminal cap over the electrode terminal, and wherein the terminal cap includes a coupling hole connected to the through-hole, the electrode terminal being coupled to the terminal cap at the coupling hole such that an outer side surface of the electrode terminal directly contacts the terminal cap at an inner side surface of the coupling hole.