Abstract: An electrode catalyst is provided in which degradation of catalytic action over time is suppressed. The electrode catalyst includes a mesoporous carbon support having pores, and catalyst metal particles supported in at least some of the pores. The ratio r/R of the mean particle size r of the catalyst metal particles to the modal pore size R of the pores is from 0.01 to 0.6, and the mean particle size r is 6 nm or less. The modal pore size R of the pores is preferably from 2 to 50 nm.

Abstract: A method is disclosed for installing a solar cell module, which enables easy installation of a solar cell module on a rack, and also enables a worker to install a solar cell module without climbing on the roof. A solar cell module is installed on a rack mounted on a roof. The solar cell module includes a frame formed of a material containing a resin. The rack includes multiple rails each having a groove, and the grooves of a pair of the rails are disposed to be opposed to each other. The method of this invention comprises the steps of fitting the frame of the solar cell module into the groove such that the solar cell module is retained by the pair of the rails, and fixing the solar cell module to the pair of the rails to prevent the solar cell module from falling out of the grooves.

Abstract: A solar cell module is disclosed including, in sequence from a light-receiving surface side, a surface glass layer having a thickness of 0.4 mm or more and 1.6 mm or less, a first sealing layer, cells, a second sealing layer, and a back protective layer, wherein the back protective layer comprises, in sequence from a side closer to the second sealing layer, a first easy-adhesion resin layer having adhesiveness to the second sealing layer, a second resin sheet layer having a flexural modulus of 1500 MPa or more and 4000 MPa or less, a third resin layer being in a foam state and having a flexural modulus of 200 MPa or more and 1000 MPa or less, and a fourth resin layer having a flexural modulus of 10000 MPa or more and 45000 MPa or less.

Abstract: A solar cell module is disclosed including, in sequence from a light-receiving surface side, a surface glass layer having a thickness of 0.4 mm or more and 1.6 mm or less, a first sealing layer, cells, a second sealing layer, and a back protective layer, wherein the back protective layer comprises, in sequence from a side closer to the second sealing layer, a first resin sheet layer having a flexural modulus of 1500 MPa or more and 5000 MPa or less, a second resin layer having a maximum bending load of 8N/10 mm or more and 100N/10 mm or less, wherein the maximum bending load is measured by a method in accordance with a bending test (JIS K7171) except that only the span between supports is changed to 48 mm, and a third resin sheet layer having a flexural modulus of 1500 MPa or more and 5000 MPa or less.

Abstract: A solar cell module is disclosed including, in sequence from a light-receiving surface side, a surface glass layer having thickness of 0.8 mm or more and 1.6 mm or less, a first sealing layer, cells, a second sealing layer, and a back protective layer, (1) the back protective layer includes, in sequence from a side closer to the second sealing layer, a first thermoplastic resin layer in foam state and having flexural modulus of 200 MPa or more and 1000 MPa or less, and a second thermoplastic resin layer containing glass fiber and having flexural modulus of 10000 MPa or more and 25000 MPa or less; and (2) the sum of flexural rigidity of each of the surface glass layer, the first sealing layer, the second sealing layer, and the back protective layer is 4000 MPa or more, the flexural rigidity being defined by: {(flexural modulus (MPa)×thickness (mm)3)/12}.

Abstract: A method is disclosed for installing a solar cell module, which enables easy installation of a solar cell module on a rack, and also enables a worker to install a solar cell module without climbing on the roof. A solar cell module is installed on a rack mounted on a roof. The solar cell module includes a frame formed of a material containing a resin. The rack includes multiple rails each having a groove, and the grooves of a pair of the rails are disposed to be opposed to each other. The method of this invention comprises the steps of fitting the frame of the solar cell module into the groove such that the solar cell module is retained by the pair of the rails, and fixing the solar cell module to the pair of the rails to prevent the solar cell module from falling out of the grooves.

Abstract: This invention provides a light diffusion member for an interconnector that enables the amount of light incident on the surface of a solar cell to be increased compared with the related art and achieves excellent power generation efficiency, and an interconnector for solar cells that comprises the light diffusion member. The light diffusion member for an interconnector 3 is disposed on the surface of an interconnector 1 for connecting adjacent solar cells 6 opposite to the solar cells 6, and the light diffusion member comprises a light diffusion layer 3a containing a resin and inorganic particles.