Battery cell heating device and battery cell heating and drying method

The invention relates to a battery cell heating device and a battery cell heating and drying method.The battery cell heating device comprises an electromagnetic heating assembly and a conveying assembly, the electromagnetic heating assembly comprises an iron core and a magnet exciting coil, the magnet exciting coil sleeves the iron core and is used for exciting the iron core, and pole shoes are formed at the ends of the iron core; and the pole shoe is used for directly facing the battery so as to penetrate the alternating magnetic field in the iron core to the battery core. The conveying assembly comprises a rotating part and a transmission chain which are connected, the rotating part moves along with the transmission chain and is used for abutting against the batteries and rotating the batteries, and the transmission chain is used for moving the batteries to the positions right opposite to the adjacent pole shoes. In the process of heating the battery cell, the moving rotating piece drives the battery to mov