To provide a battery with high safety and provide effects such as light weigh and expansion of the degree of freedom about the shape by providing terminals extending from a positive electrode and a negative electrode consisting a call to the outside of an armor body and insulating a boundary part between the terminal and the external body.

A sticking potion (the central position in the length direction of terminals 2, 3) of an aramid film 5 or an insulating treatment member is set to a position of a boundary line 4 with an armor body 4 in the longitudinal direction of the terminal 2, 3. The terminals 2, 3 are fixed to a collector in such a state as being piled up in one end in the longitudinal direction and the position outside from this is set to a boundary position with the armor body 4. The aramid film 5 is folded into two in the longitudinal direction and stuck to both sides of the respective terminals 2, 3 positions using adhesive. The respective terminals insulated in this way are fixed to the end parts in the longitudinal direction of a positive collector and a negative collector respectively by ultrasonic welding. There are polyester adhesive tape, aramid mica paper, polyimide film, etc., as a tape, a film, and a sheet composed of the used insulating materials.