To provide a backsheet for a solar cell which has dark-colored appearance, is superior in flexibility, heat resistance and resistance to scratches, and can reflect infrared rays to suppress heat accumulation for improving the efficiency of photoelectric conversion, and a solar cell module including the backsheet.
The backsheet (1) for the solar cell sequentially includes a first resin layer (11), a second resin layer (12), a third resin layer (13), a fourth resin layer (14) and a fifth resin layer (15). At least one of the first resin layer, the second resin layer and the third resin layer is an infrared-transparent colored resin layer. The fourth resin layer (14) is a white resin layer. The fifth resin layer (15) is a backside protective layer. A thickness HA of the first resin layer (11), a thickness HB of the second resin layer (12) and a thickness HC of the third resin layer (13) satisfy formulas of 0.4≤(HA+HC)/HB≤2.4 and 0.7≤HA/HC≤1.3.
HASHIMOTO MASANORI
Yoshinobu Hagino
Naoya Taniguchi