BACK PLANE PROTECTION SHEET FOR SOLAR BATTERY

摘要

PURPOSE:To increase an initial generating efficiency and avoid decline of the generating efficiency caused by penetration of moisture or the like and protect solar battery elements, internal components and the like satisfactorily by limiting the thickness of a heat adhesive resin layer. CONSTITUTION:A back plane protection sheet consists of a heat resistant and weather resistant resin film 7 which is not melted and softened at the temperature not higher than 150 deg.C and a heat adhesive resin layer 8 which is melted and softened at the temperature not higher than 150 deg.C and laminated inside the film 7. The heat resistant and weather resistant resin film 7 is provided to facilitate a heat press process as the back plane protection sheet. The thickness of the heat adhesive resin layer 8 is limited to be not less than 30mu and not more than 150mu and has Hunter whiteness of not less than 80%. The typical material of the heat adhesive layer 8 applied to glass, metal or the like is acid modified polyethylene or the like.