NOVELTY - A pressure-sensitive adhesive tape (31) comprises a substrate (1); and a pressure-sensitive adhesive layer (2) provided on at least one side of the substrate, where the pressure-sensitive adhesive tape has a thickness change ratio of less than or equal to 20% after immersion in a mixed solvent of ethylene carbonate/diethyl carbonate (former/latter (volume ratio) = 1/1) at 60 degrees C for 8 hours, and 180 degrees peeling adhesive strength (against aluminum foil, peel temperature: 25 degrees C, peel rate: 300 mm/minute) of greater than or equal to 0.5 N/10 mm after the above immersion.    USE - As a pressure-sensitive adhesive tape for used in battery; for the application of fixing an active material to the substrate by attachment to a boundary part between a portion to which the active material is applied and a portion to which the active material is not applied on an electrode plate; for the application of fixing a laminated body having a structure of positive-electrode plate/separator/negative-electrode plate or fixing a winding body of the laminated body (claimed); and used in lithium ion battery.    ADVANTAGE - The pressure-sensitive adhesive tape is capable of preventing penetration of an impurity or burr into a separator, preventing stripping-off of an active material, and improving insertion competence of an electrode into a battery case, with maintaining excellent battery properties; maintains excellent adhesiveness; and has a thickness change ratio of less than or equal to 20% after immersion in a mixed solvent of ethylene carbonate/diethyl carbonate (former/latter (volume ratio) = 1/1) at 60 degrees C for 8 hours, and 180 degrees peeling adhesive strength (against aluminum foil, peel temperature: 25 degrees C, peel rate: 300 mm/minute) of greater than or equal to 0.5 N/10 mm after the above immersion.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a battery comprising a battery-constituting member and the pressure-sensitive adhesive tape for battery attached to the battery-constituting member.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic cross-sectional view of the pressure-sensitive adhesive tape for battery.    Substrate (1)    Pressure-sensitive adhesive layer (2)    Pressure-sensitive adhesive tape (31)