US Patent No. 9,293,616

SOLAR CELL SEALING FILM AND SOLAR CELL USING THE SAME


Patent No. 9,293,616
Issue Date March 22, 2015
Title Solar Cell Sealing Film And Solar Cell Using The Same
Inventorship Takato Inamiya, Yokohama (JP)
Hisataka Kataoka, Yokohama (JP)
Norihiko Kaga, Yokohama (JP)
Yasunori Tarutani, Yokohama (JP)
Assignee BRIDGESTONE CORPORATION, Tokyo (JP)

Claim of US Patent No. 9,293,616

1. A solar cell sealing film comprising, a resin mixture of an ethylene-vinyl acetate copolymer and a polyethylene, and an
organic peroxide,
wherein a mass ratio (EVA:PE) of the ethylene-vinyl acetate copolymer (EVA) to the polyethylene (PE) in the resin mixture
is 8:2 to 3:7,

wherein a content of the organic peroxide is 0.1 to 1.0 parts by mass based on 100 parts by mass of the resin mixture,
wherein a gel rate after crosslinking is 30 to 80% by mass, and
wherein the polyethylene is a low density polyethylene (LDPE) having density of 0.910 g/cm3 or more and less than 0.930 g/cm3, or a liner low density polyethylene (LLDPE) having a density of 910 g/cm3 to 0.940 g/cm3.