Battery aluminum plastic film damage detection device

The utility model discloses a damage detection device for a battery aluminum plastic film. The damage detection device comprises a resistance tester, a test pen, a water absorption part, a base and a conductive part, wherein the conductive part and the test pen are electrically connected with the resistance tester respectively; the base is provided with a placing station for placing a battery, the battery is internally provided with an aluminum plastic film, and the aluminum plastic film internally comprises an aluminum layer and an outer insulation protection layer located on the outer side of the aluminum layer; the conductive part is connected to the base and is used for being electrically connected with an aluminum layer in an aluminum plastic film in the battery; the water absorption part is used for infiltrating conductive liquid, the water absorption part is connected to the head of the test pen, and the head of the test pen abuts against an outer insulation protection layer on the surface of an alumin