Patent ID: 7288341

Claim:
A plurality of battery frames stacked in a thickness direction of flat cells, each of the battery frames mounting and positioning at least one of the flat cells, the flat cells including: an electric-power generating element in which positive electrode plates and negative electrode plates are stacked; a sheath member which seals therein the electric-power generating element; and a positive electrode tab and a negative electrode tab which are electrically connected to the electric-power generating element and are drawn outward from the sheath member, wherein the battery frames and the flat cells form a battery, wherein each of the battery frames comprises: any one of a conductive member and an insulating member which are sandwiched between the electrode tabs of the flat cells stacked in the thickness direction and which are alternately arranged in the thickness direction when the battery is formed, the conductive member electrically connecting the flat cells to each other and the insulating member electrically insulating the flat cells from each other; a holding member which holds any one of the conductive member and the insulating member so that the conductive member or the insulating member can swing in the thickness direction; and an electrode supporting portion in which the holding member is provided and which supports each of the electrode tabs of the flat cells and is provided between the electrode tabs of the flat cells stacked.