Canon Kabushiki Kaisha

Ayako Shiotsuka

Satoru Yamada

Takahiro Mori

Ichiro Kataoka

Hidenori Shiotsuka

Takeshi Takada

A solar cell module is constructed in such an arrangement that a photovoltaic element is covered by at least a sealant resin and a surface protecting film, wherein the oxygen permeability of the surface protecting film is not less than 1 cc/m,&middot;24 hr&middot;atm and not more than 50 cc/m,&middot;24 hr&middot;atm at 25&deg; C./90% RH, thereby providing the solar cell module with high reliability, free of deterioration of the sealant resin, particularly free of yellowing, in long-term outdoor exposure use.

Solar cell module

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.

Solar cell module having a specific surface side cover excelling in moisture resistance and transparency

A solar cell module comprises a photovoltaic device provided between a surface covering material and a back covering material, wherein the photovoltaic device has an output lead-out terminal extending out of the photovoltaic device, the output lead-out terminal is covered with a resin and has no uncovered portion, and the output lead-out terminal is provided with an output lead-out box at its extended portion.

A photovoltaic device including a photovoltaic element comprising a substrate having an electrically conductive face, a semiconductor layer formed on said electrically conductive surface of said substrate, and a transparent and electrically conductive electrode layer formed on said semiconductor layer; a power generation region having a metallic wire arranged over said transparent and electrically conductive electrode layer of said photovoltaic element; and a fixing region of fixing an end portion of said metallic wire, wherein said metallic wire is fixed to a polymer film through an adhesive material, and if necessary, said metallic wire is positioned between a bus bar and said adhesive material while electrically connecting with said bus bar. A solar cell module, construction member, or power generation apparatus comprising said photovoltaic device. A process for producing said photovoltaic device.

Photovoltaic device

A method for manufacturing a solar cell module including a photovoltaic cell between a surface covering material and a back-surface covering material is disclosed that includes the steps of sequentially laminating a member elastically deformable in the direction of the thickness and a member having a flexural rigidity on the surface covering material and/or the back-surface covering material, and providing an external pressure to the member having the flexural rigidity to cover the photovoltaic cell with the surface covering material and the back-surface covering material. According to the above-described manufacturing method, by providing the member elastically deformable in the direction of the thickness, it is possible to prevent deformation and breakage of the photovoltaic cell and rupture of the covering materials. Furthermore, by utilizing a property such that hardness changes in accordance with an amount of deformation, possesed by the member which is deformed in the direction of the thickness, foaming of a foamed member can be homogenized. In addition, since the pressure is provided via the member having the flexural rigidity, the surfaces of the covering materials of the solar cell module are not deformed more than the amount of deformation of the member which is elastically deformed in the direction of the thickness. As a result, large undulation does not occur in the solar cell module.

Growing community of inventors

Nara, Japan

Ayako Shiotsuka