NOVELTY - The drying apparatus (22) has a dryer unit (23) which is provided to make dry preset temperature for drying an active material layer heat up, and evaporating a solvent. A statical determination unit (26) is provided to make temperature lower than dry preset temperature for the temperature-fall of the active material layer and to statically determine evaporation of the solvent. The statical determination unit is provided at a rear portion of the dryer unit. The dryer unit and the statical determination unit are arranged in an alternate manner.    USE - Drying apparatus for manufacturing apparatus of battery such as lithium ion battery used in mobile telephone and motor vehicle. Can also be used in personal computer, hybrid vehicle and electric vehicle.    ADVANTAGE - Since the statical determination unit at the rear portion of dryer unit, the generation of migration can be suppressed and the fall of the contact power of an electrical power collector and an active material layer can be suppressed. Since low temperature is set in a statical determination unit compared with the dryer unit, evaporation of a solvent can be suppressed. The motion which is unevenly distributed in the active material layer surface can be suppressed, the equalization speed which is made to diffuse solvent concentration distribution and concentration distribution of a binder, can be homogenized. Since the binder in an active material layer can be in the state which are uniformly scattered compared with the drying apparatus which provided only the conventional dryer unit, the contact power of an active material layer and an electrical power collector can be improved. The contact power fall of an active material layer can be suppressed, even when battery capacity is turned into high capacitance and the thickness of an active material layer increased, without reducing the contact power of an active material layer.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for drying method.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of manufacturing apparatus of the lithium ion battery using the drying apparatus.    Electrical power collector (11)    Drying apparatus (22)    Dryer unit (23)    Winding-up unit (24)    Statical determination unit (26)