Patent ID: 8440348

Claim:
A sealed battery, comprising: an outer body having an opening portion, an opening-sealing plate sealing the opening portion of the outer body, an electrode assembly housed in the outer body, and an external terminal electrically connected to the electrode assembly; wherein a first insulator is arranged on one face of the opening-sealing plate, a second insulator is arranged on another face of the opening-sealing plate, a conductive member is arranged on a face of the first insulator being opposite to a side where the opening-sealing plate is positioned, each one of the opening-sealing plate, the first insulator, the second insulator and the conductive member has a through hole and the external terminal has a sword-guard portion; and wherein a connecting member passing through each of the through holes of the second insulator, the opening-sealing plate, the first insulator and the conductive member is provided on one side of the sword-guard portion, a tip portion of the connecting member is crimped so that the opening-sealing plate and the conductive member are mechanically fixed and a thin-walled portion made thinner than other portions formed in a tip portion of the crimped portion is adhered to the conductive member; and the thin-walled portion and the conductive member are welded with a high energy beam.