| 摘要 |
A fuel cell bipolar plate that while retaining its mechanical strength, has its electrical conductivity enhanced; a process for producing the same; and a fuel cell including the bipolar plate. There is provided a fuel cell bipolar plate comprising laminated molded item (1) formed by a sheet-shaped molding material, wherein the sheet-shaped molding material contains a resin and a carbon material, and wherein the laminated molded item (1) has a laminate structure of, arranged in sequence, surface layer C(11)/inner layer B(12)/central layer A(13)/ inner layer B'(14)/ surface layer C'(15), and wherein each of the central layer A(13), inner layer B(12), inner layer B'(14), surface layer C(11) and surface layer C'(15) consists of a single layer or multilayer of the sheet-shaped molding material, and wherein when the carbon material content of central layer A(13) is referred to as a, the carbon material content of inner layer B(12) as b, the carbon material content of inner layer B'(14) as b', the carbon material content of surface layer C(11) as c and the carbon material content of surface layer C'(15) as c', there are satisfied the relationships 55‰ a‰ 85, 55‰ c‰ 85, 55‰ c'‰ 85, 10‰ a-b‰ 30, 10‰ c-b‰ 30, 10‰ a-b'‰ 30 and 10‰ c'-b'‰ 30 (the unit of each of a, b, b', c and c' is % by volume). |
