▎ 摘　　要

NOVELTY - A composite film for flexibly-packaged battery with heat-resistant function, comprising a heat-sealing layer, a metal base layer, an insulating layer, a first adhesive layer, mylar heat-resistant layer, a second adhesive layer, a graphene film layer, the composite film from inside to outside in turn laminated the heat-sealing layer, a metal base layer, an insulating layer, a first adhesive layer; mylar heat-resistant layer; the second adhesive layer, graphene film layer; the thickness of the metal base layer is 5 mu to 40 mu m, the thickness of the heat sealing layer is 5 mu to 20 mu m. Compared with the existing technology, the heat-resistant performance of the utility model compared with the traditional material can be greatly improved, ensures the battery of the safety and the service life.