SOLAR CELL MODULE

• Main Authors: FUJINO, Takaaki, IMAMURA, Takahiro, MAEDA, Daisuke, SAKAMOTO, Hiroyuki, TANAKA, Soichiro
• Format: Patent
• Language: English
• Published: 11.01.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

This invention provides a solar cell module (1) in which cell (30) cracking during transportation, during installation, and after installation is reduced, even when a thin surface glass is used for weight reduction. More specifically, the invention provides a solar cell module (1) comprising, in sequence from a light-receiving surface side, a surface glass layer (10) having a thickness of 0.8 mm or more and 1.6 mm or less, a first sealing layer (20), cells (30), a second sealing layer (40), and a back protective layer (50), wherein (1) the back protective layer (50) comprises, in sequence from a side closer to the second sealing layer (40), a first thermoplastic resin layer (52) being in a foam state and having a flexural modulus of 200 MPa or more and 1000 MPa or less, and a second thermoplastic resin layer (54) containing glass fiber and having a flexural modulus of 10000 MPa or more and 25000 MPa or less; and (2) the sum of flexural rigidity of each of the surface glass layer (10), the first sealing layer (20), the second sealing layer (40), and the back protective layer (50) is 4000 Mpa?mm3 or more, the flexural rigidity being defined by: {(flexural modulus (MPa) x thickness (mm)3)/12}.