Patent ID: 8426069

Claim:
A battery comprising: at least one first electrode, at least one second electrode, and a belt-like separator, wherein said separator is folded in a zigzag manner forming a layered structure having at least one first-electrode holding part and at least one second-electrode holding part which are alternately aligned, said layered structure has a first end face where at least one first bent part is disposed and a second end face where at least one second bent part is disposed, said first end face being positioned on the opposite side of said second end face, said first-electrode holding part has an open space on said first end face side while said second-electrode holding part has an open space on said second end face side, said first-electrode holding part housing said first electrode, and said second-electrode holding part housing said second electrode, said first electrode has two electrode sections, with each of the two electrode sections of said first electrode comprising a current collector and an active material layer carried on one face of said current collector, and each current collector of each of the two electrode sections of said first electrode is in contact with one another, said second electrode has two electrode sections, with each of the two electrode sections of said second electrode comprising a current collector and an active material layer carried on one face of said current collector, and each current collector of each of the two electrode sections of said second electrode is in contact with one another, one of said two electrode sections of one or both of said first and second electrodes protrudes relative to the other of said two electrode sections and toward either the open space on said first end face side or the open space on said second end face side to form a protruding part, said protruding part also comprising the current collector and the active material layer, and said first end face has a first terminal connected to said first electrode while said second end face has a second terminal connected to said second electrode.