Solar cell module having a specific surface side cover excelling in moisture resistance and transparency
AssigneeCanon Kabushiki Kaisha
InventorsHidenori Shiotsuka, Takahiro Mori, Ichiro Kataoka, Satoru Yamada, Ayako Shiotsuka
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Abstract
A solar cell module comprising a photovoltaic element having a light receiving face on which a collecting electrode having an electrically conductive coat and a surface side cover comprising a filler and a surface protective film sequentially laminated on the light incident side of said photovoltaic element, wherein a thin resin layer is interposed between said photovoltaic element and said filler such that gaps present in said conductive coat of the collecting electrode are filled by said thin resin layer.
Claims19
A solar cell module comprising a photovoltaic element having a light receiving face on which a collecting electrode comprising a metallic wire covered by an electrically conductive coat and a surface side cover comprising a filler of a copolymer of ethylene and an unsaturated acid ester and a surface protective film sequentially laminated on the light incident side of said photovoltaic element, wherein a resin layer comprising a resin material selected from the group consisting of an acrylic resin, a silicone resin, a fluorine-containing resin, mixtures thereof and an inorganic polymer is interposed between said photovoltaic element and said filler such that gaps present in said conductive coat of the collecting electrode are filled by said resin layer to prevent moisture invasion from damaging said metallic wire, wherein said resin layer has a moisture permeability of less than 20 g/m2·day in an atmosphere of 40° C. and 90% RH.
A solar cell module comprising:
- a photovoltaic element having a light receiving face on which a collecting electrode having an electrically conductive coat layer is disposed, wherein a first resin is provided at least in gaps present in said conductive coat layer and a second resin is provided on the light receiving face side of said photovoltaic element such that said collecting electrode and said first resin are covered by said second resin.
A solar cell comprising a photovoltaic element having a light receiving face on which a collecting electrode having an electrically conductive coat, a surface side cover comprising a filler selected from the group consisting of ethylene-vinyl acetate copolymer, ethylenemethyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene-butyl acrylate copolymer, ethylene-methyl methacrylate copolymer and ethyene-ethyl methacrylate copolymer and a surface protective film are sequentially laminated, wherein a resin layer comprising a resin material selected from the group consisting of an acrylic resin, a silicone resin, a flourine-containing resin , mixtures thereof and an inorganic polymer is interposed between said photovoltaic element and said filler such that gaps present in said conductive coat of the collecting electrode are filled by said resin layer to prevent moisture invasion from damaging said collecting electrode, wherein said resin layer has a moisture permeability of less than 20 g/m2[Circlesolid]day in an atmosphere of 40° C. and 90% RH.
Dependencies are inferred from the claim text.