Solar cell module having a specific back side covering material and a process for the production of said solar cell module
AssigneeCanon Kabushiki Kaisha
InventorsSatoru Yamada, Takahiro Mori, Ichiro Kataoka, Hidenori Shiotsuka, Ayako Komori
Life of this patent
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Abstract
A solar cell module which comprises a stacked body including a photovoltaic element interposed between a front side covering material and a back side covering material having a foamed material layer, wherein said foamed material layer is formed by foaming an unfoamed material during the formation of said stacked body. A building construction member having said solar cell module is also described.
Claims40
A solar cell module comprising a photovoltaic element having a photoactive semiconductor layer as a photoelectric conversion member, said photovoltaic element being enclosed by a front side covering material covering a light receiving front side of said photovoltaic element and a back side covering material covering a back side of said photovoltaic element, and said back side covering material comprising a foamed material, characterized in that said foamed material comprises a member (a) selected from the group consisting of a stacked body (a-i) comprising a foamed material and a fiber and a material (a-ii) comprising a foamed material with a fiber incorporated therein.
A process for producing a solar cell module comprising a photovoltaic element having a photoactive semiconductor layer as a photoelectric conversion member which is enclosed by a front side covering material covering a light receiving front side of said photovoltaic element and a back side covering material covering a back side of said photovoltaic element, said process including a step of covering the back side of said photovoltaic element with said back side covering material, said covering step comprising providing an unfoamed material containing a foaming agent therein usable as a constituent of said back side covering material, and decomposing said foaming agent contained in said unfoamed material to form a foamed material as said back side covering material.
A solar cell module comprising a photovoltaic element having at least one photoactive semiconductor layer as a photoelectric conversion member and having a light receiving front side and a back side opposite said light receiving front side, said photovoltaic element having a covering material on at least the back side of said photovoltaic element, characterized in that said covering material has a layer thickness deformation proportion of 5 to 75% for a load of 2 Kg/cm.sup.2 applied thereto at room temperature.
A process for producing a solar cell module having a photovoltaic element comprising at least one photoactive semiconductor layer as a photoelectric conversion member and having a light receiving front side and a back side opposite said light receiving front side, said solar cell module having a covering layer on at least said back side to cover said back side, said process including the steps of laminating a material having a deformation proportion of 5 to 75% for a load of 2 Kg/cm.sup.2 applied thereto at room temperature on said back side, subjecting the resultant to compression treatment, and subjecting to heat treatment to form said covering layer on said back side.
A building construction member having a solar cell module comprising a photovoltaic element having a photoactive semiconductor layer as a photoelectric conversion member, said photovoltaic element being enclosed by a front side covering material covering a light receiving front side of said photovoltaic element and a back side covering material covering a back side of said photovoltaic element, and said back side covering material comprising a foamed material, characterized in that said foamed material comprises a member (a) selected from the group consisting of a stacked body (a-i) comprising a foamed material and a fiber and a material (a-ii) comprising a foamed material with a fiber incorporated therein.
A building construction member having a solar cell module comprising a photovoltaic element having at least one photoactive semiconductor layer as a photoelectric conversion member and having a light receiving front side and a back side opposite said light receiving front side, said photovoltaic element having a covering material on at least the back side of said photovoltaic element, characterized in that said covering material has a layer thickness deformation proportion of 5 to 75% for a load of 2 Kg/cm.sup.2 applied thereto at room temperature.
A roof member having a solar cell module comprising a photovoltaic element having a photoactive semiconductor layer as a photoelectric conversion member, said photovoltaic element being enclosed by front side covering material covering a light receiving front side of said photovoltaic element and a back side covering material covering a back side of said photovoltaic element, and said back side covering material comprising a foamed material, characterized in that said foamed material comprises a member (a) selected from the group consisting of a stacked body (a-i) comprising a foamed material and a fiber and a material (a-ii) comprising a foamed material with a fiber incorporated therein.
A roof member having a solar cell module comprising a photovoltaic element having at least one photoactive semiconductor layer as a photoelectric conversion member and having a light receiving front side and a back side opposite said light receiving front side, said photovoltaic element having a covering material on at least the back side of said photovoltaic element, characterized in that said covering material has a layer thickness deformation proportion of 5 to 75% for a load of 2 Kg/cm.sup.2 applied thereto at room temperature.
Dependencies are inferred from the claim text.