NOVELTY - Back plate for metal wrap through solar cell comprises a base material layer (1), a first adhesive layer (2), a second adhesive layer (3), a weatherable layer (4), an insulating layer (5) and a metal foil layer. The first adhesive layer is located between the base material layer and the metal foil layer. The base material layer and the metal foil layer towards one side of the base material layer are combined into one body. The second adhesive layer is located between the base material layer and the weatherable layer. The upper surface of the metal foil layer is provided with e.g. electrodes.    USE - The back plate is useful in metal wrap through solar cell.    ADVANTAGE - The back plate has high partial discharge power and improved weather resistance, dimensional stability, insulation and sealing properties to prevent water vapor, lowers the shading rate of the surface gate line and improves the efficiency of the solar module.    DETAILED DESCRIPTION - Back plate for metal wrap through solar cell comprises a base material layer (1), a first adhesive layer (2), a second adhesive layer (3), a weatherable layer (4), an insulating layer (5) and a metal foil layer. The first adhesive layer is located between the base material layer and the metal foil layer. The base material layer and the metal foil layer at one side of the base material layer are combined into one body. The second adhesive layer is located between the base material layer and the weatherable layer. The base material layer and the weatherable layer one side of the base material layer are combined into one body. The insulating layer is incorporated in the metal foil layer and its back surface fixed to the one side of the first adhesive layer. The upper surface of the metal foil layer is provided with etching lines and electrodes. The etching lines and the metal foil layer are divided into multiple independent metal foil layer units. The electrode is formed on each of the metal foil layer unit and is exposed out of the insulating layer.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the back plate for metal wrap through solar cell.    Base material layer (1)    First adhesive layer (2)    Second adhesive layer (3)    Weatherable layer (4)    Insulating layer (5)