Fuel cell and manufacturing method of fuel cell

• Main Authors: Kondou, Takashi, Yoshizumi, Tomoo
• Format: Patent
• Language: English
• Published: 15.10.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

A fuel cell includes: a membrane electrode assembly; a porous member arranged on a cathode side of the membrane electrode assembly and having a first surface, a second surface, and an end surface portion, the end surface portion being between an end side portion of the first surface and the second surface; a sealing plate arranged along the end side portion of the first surface; and a separator plate arranged on the second surface. The porous member supplies oxidant gas to the membrane electrode assembly through the first surface, and discharges oxidant off-gas to a discharge portion of the fuel ceil via the end surface portion. The first surface has a first region facing the sealing plate and being between the sealing plate and the second region, the second surface has a second region. A hydrophilicity of the first region is different from that of the second region.