Pouch type secondary battery

A battery, comprising:

• an electrode assembly including a first electrode plate and a second electrode plate with a separator interposed therebetween, a first terminal portion extending from the first electrode plate and a second terminal portion extending from the second electrode plate;
• a pouch casing for housing the electrode assembly having an open portion and being formed of composite foil of a metallic material and a resin material;
• a pouch cover formed of a metal material including at least one throughhole and at least an electrode pin fastened to the at least one throughhole, wherein the electrode pin is electrically connected to one of the first terminal portion and the second terminal portion and the pouch cover is coupled to and seals the open portion of the pouch casing;
• a first lead and a second lead exposed outside the pouch cover, wherein the first lead is electrically connected to the first terminal portion and the second lead is electrically connected to the second terminal portion;
• wherein the electrode pin includes a first electrode pin and a second electrode pin formed at locations corresponding to the first terminal portion and the second terminal portion, respectively,
• wherein at least one of the first electrode pin and the second electrode pin is electrically insulated from the pouch cover, and
• wherein the first terminal portion is electrically connected to an inside face of the first electrode pin and the second terminal portion is electrically connected to an inside face of the second electrode pin.

A battery, comprising:

• an electrode assembly having a first electrode plate and a second electrode plate with a separator interposed therebetween, and a first terminal portion extending from the first electrode plate and a second terminal portion extending from the second electrode plate;
• a pouch casing for housing the electrode assembly having an open portion and being formed of composite foil of a metallic material and a resin material;
• a pouch cover formed of an insulating reinforced foil is coupled to and seals the open portion of the pouch casing, wherein the pouch cover comprises a first throughhole and a second throughhole at locations substantially corresponding to the first terminal portion and the second terminal portion, respectively, and a first electrode pin and a second electrode pin fastened to the first throughhole and the second throughhole, respectively,
• wherein the first terminal portion of the electrode assembly is electrically connected to an inner face of the first electrode pin and the second terminal portion of the electrode assembly is electrically connected to an inner face of the second electrode pin;
• and
• a first lead electrically connected to an outer face of the first electrode pin and a second lead electrically connected to an outer face of the second electrode pin.