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发明公开
CN101622720A 太阳电池用背面保护片和具备其的太阳电池模块 有权 许可

太阳电池用背面保护片和具备其的太阳电池模块
摘要：
本发明提供一种太阳电池用背面保护片和具备该背面保护片的太阳电池模块，所述太阳电池用背面保护片能够提高与作为用于密封太阳电池元件的填充材料的EVA树脂的粘合性，且能够长期维持耐候性，并且能够实现轻量化。太阳电池用背面保护片(10)配置于太阳电池模块(100)的背面侧，其中，包含：第一薄膜(11)，以与填充材料(7)的表面相接触的方式固着，含有密度为0.91g/cm 3 以上且0.93g/cm 3 以下的线性低密度聚乙烯；和第二薄膜(12)，层压于第一薄膜(11)上，配置于该太阳电池用背面保护片(10)的最外层，含有聚偏氟乙烯和聚甲基丙烯酸甲酯。
摘要（英）：

Provided are a back side protective sheet for a solar cell, which is capable of enhancing performance of adhesion to an EVA resin as a filler used to seal the solar cell elements, of maintaining weather resistance for a long period of time, and of reducing a weight thereof; and a solar cell module including the back side protective sheet for a solar cell. The back side protective sheet (10) for a solar cell is disposed on a back side of the solar cell module (100) and includes: a first film (11) fixedly attached so as to abut a surface of a filler (7) and containing linear low-density polyethylene having a density greater than or equal to 0.91 g/cm 3 and less than or equal to 0.93 g/cm 3 ; and a second film (12) laminated on the first film (11) and disposed in an outermost layer of the back side protective sheet (10) for a solar cell, the second film (12) containing polyvinylidene fluoride and polymethyl methacrylate.

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