BATTERY AND ELECTRONIC DEVICE INCLUDING THE SAME

An electronic device with a battery may include: a pouch; a first fixing member (e.g., adhesive); a second fixing member (e.g., adhesive); and an electrode assembly which is included in the pouch and in which a positive electrode plate disposed on an outermost side, a first separation membrane disposed on an inner side of the positive electrode plate, a negative electrode plate disposed on an inner side of the first separation membrane, and a second separation membrane disposed on an inner side of the negative electrode plate are stacked and wound, wherein the positive electrode plate may include a first outer surface oriented in one direction, and a second outer surface oriented in a direction opposite to the one direction, wherein the electrode assembly may include an upper end oriented in an upward direction and a lower end oriented in a direction opposite to the upward direction, wherein the second separation membrane may include a first inner surface adjacent and/or proximate to the first outer surface in the vicinity of a central portion thereof and a second inner surface adjacent and/or proximate to the second outer surface in the vicinity of the central portion, wherein the first fixing member may be configured to couple (directly or indirectly) a portion of an upper portion of the first inner surface, a portion of the upper end, and a portion of an upper portion of the first outer surface, and wherein the second fixing member may be configured to couple (directly or indirectly) a portion of the lower portion of the first inner surface, a portion of the lower end, and a portion of the lower portion of the first outer surface. Various other embodiments may be possible.