LAYER-BUILT BATTERY AND LAYER-BUILT BATTERY SYSTEM

摘要

PROBLEM TO BE SOLVED: To solve such problems of a conventional wound battery that temperature rise in the battery cannot be suppressed, that the wound battery does not function as a battery when the temperature of an electrode rises, and that the battery dimensions increase when a pipe, or the like, for feeding a cooling medium is provided in the battery.SOLUTION: In a nonaqueous battery, heat transmission of an electrode is enhanced by laminating positive electrodes and negative electrodes in the axial direction of a hollow battery exterior body, thereby making the outer diameter of one of the positive electrode or negative electrode larger than the inner diameter of the exterior body so that the positive electrode or negative electrode comes into tight contact with the exterior body.