| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin sealing sheet for a solar battery, for preventing problems such as misalignment of cells in a modularizing step, while maintaining a gap filling property in a modularizing step and an anti-creep property after modularization.SOLUTION: A resin sealing sheet for a solar battery is applied to tightly adhere by softening the resin. The resin sealing sheet includes at least one kind of ionizing radiation-crosslinking resin selected from the group consisting of an ethylene-vinylacetate copolymer, an ethylene-aliphatic unsaturated carboxylic acid copolymer and an ethylene-aliphatic unsaturated carboxylic acid ester copolymer. The resin sheet is controlled to have a gel fraction of 2 to 65 mass% by irradiating the ionizing radiation-crosslinking resin with ionizing radiation, and shows 15% or less of thermal shrinkage at 90°C. |
