... online April 23, 2014. Editor: Nigel M. Sammes. 23 02 2012 12 02 2014 The clamping force during the assembly of proton exchange membrane (PEM) fuel cells has a great influence in the contact resistance between bipolar plate (BPP) and gas diffusion layer (GDL). In this paper, three...

... with CCDM architecture has tightly bonded interfaces throughout the assembly, which can result in lower thermal and electrical contact resistances. Considering the fuel cell as a 1D thermal system, the through-plane thermal resistance was observed to decrease by 5–10% when comparing CCDM to CCM...

...Odne S. Burheim; Jon G. Pharoah; Hannah Lampert; Preben J. S. Vie; Signe Kjelstrup We report the through-plane thermal conductivities of the several widely used carbon porous transport layers (PTLs) and their thermal contact resistance to an aluminum polarization plate. We report these values both...

... transfer and electrical contact resistance. Existing research for analyzing the assembly pressure effects is mostly experimental. This paper develops a sequential approach to study the pressure effects by combining the mechanical and electrochemical phenomena in fuel cells. The model integrates gas mass...

... is to coat the surface of the steel with a protective layer with the twofold aim to limit Cr evaporation and to develop a conductive scale. In the present work, the effect of different oxide coatings on the chromium evaporation rate and on the contact resistance of ferritic stainless steel has been...

...R. F. Silva; A. Pozio Three different types of metallic bipolar plates (commercial stainless steels, Ni-based alloys, and nitride-coated steels) were investigated in terms of their interface contact resistance (ICR) and corrosion resistance in conditions typical of a proton exchange membrane fuel...

... of the sizes of current collectors and their control areas are relatively sensitive to the contact resistance between the current collectors and the electrodes of the fuel cell. Results of great significance are provided in the analysis, which will help designers to account for the variation of contact...

... of 1.625 cm 2 demonstrated a maximum power density of 50 mW ∕ cm 2 at 60 ° C . Since the silicon wafer is too fragile to compress for sealing, and a thicker layer of gold has to be coated on the silicon wafer to reduce contact resistance, further development of micro DMFCs for high power application...

... with and without the chemically treated aluminum, were assembled for performance tests. The results showed that the single cell with chemically treated bipolar plates had a higher surface contact resistance and a decreased cell performance, but the cell life was longer. Future research efforts need to focus...

.... There are six carbon papers used in the hardware design of the novel testing cell (Fig. 1 ). Therefore, the majority of the measured resistance is due to the carbon papers and their contact resistance. Effect of screw torque on cell resistance with different gasket thicknesses The dependence...

...V. Mishra; F. Yang; R. Pitchumani The electrical contact resistance between gas diffusion layers and bipolar flow channel plates is one of the important factors contributing to the operational voltage loss in polymer electrolyte membrane (PEM) fuel cells. Effective analysis and design of fuel cells...