Battery encapsulation device

The embodiment of the utility model provides a battery encapsulation device which comprises a bracket, and a supporting mechanism and a roller mechanism are arranged on the bracket; the supporting mechanism is used for supporting the battery protection plate; the roller mechanism comprises a driving assembly and a roller assembly, and the roller assembly comprises a roller and a rotary alignment piece which are connected with each other; the rotary alignment part is movably connected to the driving assembly, the driving assembly is used for driving the rotary alignment part to be close to or away from the battery protection plate, and the rotary alignment part is used for adjusting the roller to be aligned with the battery protection plate. Therefore, in the rubber coating process, when the battery protection plate is not aligned with the roller, the roller firstly abuts against at least part of the battery protection plate, and then the roller is aligned with the whole battery protection plate under the adju