Liquid-cooled battery cell heating device and lithium battery equipment

The liquid-cooled battery cell heating device comprises an electromagnetic heating module, a battery cell and a heat dissipation component, the electromagnetic heating module comprises a coil structure and an iron core, the coil structure is wound around the iron core, the iron core abuts against the surface of the battery cell, and the coil structure is used for generating a magnetic field when powered on; the heat dissipation component comprises at least two sections of heat dissipation straight pipes, the heat dissipation straight pipes are arranged at intervals, the heat dissipation component further comprises heat dissipation bent pipes, every two adjacent sections of heat dissipation straight pipes are sequentially connected through the heat dissipation bent pipes, so that the heat dissipation component forms an accommodating part, the accommodating part accommodates an electromagnetic heating module, and the electromagnetic heating module is arranged in the accommodating part. A heat-conducting medium