Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"bipolar plate"”.
-
The Development of Compression Moldable Polymer Composite Bipolar Plates for Fuel Cells
… manufacture conductive polymer composite bipolar plates for fuel cells. Bipolar plates are required to possess several important properties for fuel cell operation, with the most sought after being electrical conductivity and mechanical strength. The polymer composite material generated at …
-
Investigation of Graphite Bipolar Plates for PEM Fuel Cell Performance
… cells for automotive applications is due to the bipolar plate. The current graphite material used for the bipolar plate is very brittle and difficult to machine to the rigorous specifications needed for fuel cell stacks. This paper introduces the development of a fuel cell test stand for …
-
Investigation of Water Transport Parameters and Processes in the Gas Diffusion Layer of PEM Fuel Cells
… compressed GDL region under the shoulder of a bipolar plate. Results show that the compression due to the bipolar plate shoulder causes a significant increase in liquid saturation, and a significant reduction in oxygen concentration and current density for the paper GDL. In contrast, …
-
Evaluation of Novel and Low-Cost Materials for Bipolar Plates in PEM Fuel Cells
Bipolar plate material and fabrication costs make up a significant fraction of the total cost in a polymer electrolyte membrane fuel cell stack. In an attempt to reduce these costs, a novel manufacturing method was developed for use with composite materials. Conductive fillers were mixed with a …
-
Studies of the corrosion of materials for bipolar plates in fuel cells
… the corrosion processes of materials for metal bipolar plates in fuel cells based on a poly(benzimidazole) membrane filled with H3PO4. In addition to mild steel, stainless steel, nickel, electroplated Ni and Ni/graphite, the focus was on Ni-Cr alloys and the influence of composition on the rate …
-
Experimental Studies on the Mechanical Durability of Proton Exchange Membranes
… as stress risers are evident. Locally, a nominal platen compression (similar to bipolar plate land compression) of 0.68 MPa can lead to compressive stress as large as 2.30 MPa in various hard spots that are in the order of 100s µm to 1 mm in size.