Battery drying device and battery production system

The utility model relates to a battery drying device and a battery production system, the battery drying device comprises a frame, a vacuum assembly and an evaporation piece, the frame is provided with a containing cavity, and the containing cavity is used for containing a battery monomer; the vacuum assembly comprises an air suction part and an air suction pipeline, the air suction part is communicated with the opening of the battery monomer through the air suction pipeline, and the air suction part is used for absorbing air in the battery monomer to form vacuum in the battery monomer; the interior of the vacuum assembly is hermetically isolated from the accommodating cavity; the evaporation part is arranged in the accommodating cavity and is used for generating steam, and the steam can be in contact with a shell of the battery monomer to heat the interior of the battery monomer. According to the battery drying device and the battery production system provided by the embodiment of the invention, the temperature rising speed during drying of the battery monomers can be increased, and the drying efficiency of the battery monomers is improved.