Encapsulation adhesive film for solar cell and preparation method and use therefor

An encapsulation adhesive film for a solar cell comprising a transparent layer in contact with a cell sheet, a first adhesive film layer in contact with the transparent layer, and a second adhesive film layer in contact with a back-sheet or a glass,

• wherein the encapsulation adhesive film is between the cell sheet, and a glass or back-sheet,
• wherein a composition of the transparent layer comprises:
• a resin;
• a cross-linking agent accounting for 0.1% to 5% of a mass of the resin;
• an auxiliary cross-linking agent accounting for 0.1% to 1% of the mass of the resin;
• a coupling agent accounting for 0.1% to 1% of the mass of the resin;
• and
• a light stabilizer accounting for 0.1% to 1% of the mass of the resin,
• wherein a composition of the first adhesive film layers consists of:
• a resin and a colored filler with a mass ratio of 3 to 5:1;
• a cross-linking agent accounting for 0.1% to 5% of a total mass of the resin and the colored filler;
• an auxiliary cross-linking agent accounting for 0.1% to 1% of the total mass of the resin and the colored filler;
• a coupling agent accounting for 0.1% to 1% of the total mass of the resin and the colored filler;
• a light stabilizer accounting for 0.1% to 1% of the total mass of the resin and the colored filler;
• and
• a photo initiator accounting for 0.1% to 5% of the total mass of the resin and the colored filler, and
• wherein a composition of the second adhesive film layer consists of:
• a resin and a colored filler with a mass ratio of 15 to 25:1;
• a cross-linking agent accounting for 0.1% to 5% of the total mass of the resin and the colored filler;
• an auxiliary cross-linking agent accounting for 0.1% to 1% of the total mass of the resin and the colored filler;
• a coupling agent accounting for 0.1% to 1% of the total mass of the resin and the colored filler;
• and
• a light stabilizer accounting for 0.1% to 1% of the total mass of the resin and the colored filler.