Abstract
In this paper, the design of the compression area and pressure value of the metallic bipolar plate flow path of the fuel cell in the contact with the Membrane Electrode Assembly (MEA) during compression and the impedance of the stack are discussed. The characteristic design of the metallic bipolar plate and the actual operation verification of the effective deformation amount are discussed. Improved design recommendations for metallic fuel cell stacks for compression characteristics and MEA contact resistance. However, in order to control the optimized contact impedance, the single cell size difference can be minimized or even the control design can be optimized to avoid the need for additional complex designs to increase the clamping force and make the MEA and the metallic bipolar. The board contact impedance can be effectively reduced and it is the difficulty of current battery stack fabrication. This study discusses the metallic bipolar plate flow path and stack impedance of fuel cells as a modified design suggestion for compression characteristics and MEA contact resistance of metallic fuel cell stacks.