| 摘要 |
PROBLEM TO BE SOLVED: To provide a solar battery module which is improved in moisture resistance by suppressing the arrival of sodium ions precipitated from surface glass at solar battery elements. SOLUTION: In this solar battery module which is constituted by sealing a plurality of solar batteries 1 with EVA resins between the surface glass 20 and a rear-surface member 5, a sodium diffusion preventing layer composed of a PET film 6 having lower steam permeability than EVA sheets 3 and 4 have is interposed between the surface glass 20 and solar battery elements 1. |
