The present invention relates to a pressure-sensitive adhesive tape for a battery, containing: a substrate; and a pressure-sensitive adhesive layer laminated on at least one surface of the substrate, in which the pressure-sensitive adhesive layer contains a rubber component in the content of 70 wt % or more, and the rubber component has a weight average molecular weight of 300,000 to 5,000,000, and in which the pressure-sensitive adhesive layer is laminated at an inner portion of 0.5 mm or more from both edges of the substrate, with a thickness of 1 to 25 μm.