[PROBLEM] To shorten the time for drying an electrode roll. [0002] [SOLUTION] A drying device 10 for an electrode roll 20 includes: a drying oven 30 that accommodates an electrode roll in which an electrode base material 21 is wound around a winding core 2...

A drying method includes a step of heating an object to be dried provided in a drying chamber to a predetermined temperature, a step of maintaining the predetermined temperature, a step of increasing an air pressure inside the drying chamber to a predeterm...