| 摘要 |
PURPOSE:To reduce the manufacturing cost of a solar cell, by a method wherein an anodic oxidation film or an ceramics film is formed on an aluminum plate, and then the surface of the film is abraded to obtain a surface whose surface roughness is less than or equal to Rmax.0.5mum. CONSTITUTION:After an anodic oxidation film or an ceramics film is formed on at least one surface of an aluminum plate, the surface of the film is abraded to make the surface roughness less than or equal to Rmax.0.5mum. A sulfuric acid anodic oxidation film, an oxalic acid anodic oxidation film, a chromic acid anodic oxidation film, etc., are applicable to the anodic oxidation film. In the case where a hole-sealing treatment is required for the anodic oxidation film, the treatment is desired to be done in a water solution containing metal salt such as nickel accetate. Thereby, the device weight is decreased, the heat dissipation efficiency is improved, and the manufacturing cost of a solar cell is reduced. |
