...Ting-Yen Zhou; Yong-Song Chen A bipolar plate (BP) is one of the key components of proton exchange membrane fuel cells (PEMFCs) and accounts for a major portion of their manufacturing cost. Stainless steel is considered as one of the candidate materials for the BPs of the cells because of the short...

... conductive layers in electromagnetic field, stainless steel material was adopted for the gas distributor tube, which is readily heated by induction method and transfers heat to adjacent layers. Start-up times of 95, 31, 49 and 20 seconds were attained for gas heating, induction heating, hybrid of sequential...

... 09 2011 22 09 2011 proton exchange membrane fuel cells stainless steel transport processes polymer electrolyte membrane fuel cell (PEMFC) water flooding visualization operating conditions As concerns about environmental pollution increase, research and development...

...Sebastian Molin; Mateusz Tolczyk; Maria Gazda; Piotr Jasinski In this paper composite supports for solid oxide fuel cells were fabricated and evaluated. Substrates were composed of stainless steel and yttria stabilized zirconia (YSZ) powders mixed in different volume ratios. Their sintering...

...Yoshiaki Matsuo; Shin-ich Miyano; Yosohiro Sugie; Tomokazu Fukutsuka Factors affecting the formation of carbon film by plasma-assisted chemical vapor deposition on stainless steels were investigated in detail. When the carbon coating time increased, the morphology and crystallinity of the formed...

... of such a system by outlining the time-evolution of contact resistances between the air electrode and the stainless steel plate. Moreover, the stability and effectiveness of a glass-ceramic sealant used to join Crofer22APU interconnector to an anode supported cell is also discussed. The time-evolution of the open...

...Johan Andre; Nicolas Guillet; Jean-Pierre Petit; Laurent Antoni Increasing lifetime and performance is critical for proton exchange membrane fuel cell (PEMFC) using stainless steel plates. A good compromise between passivity and electrical contact resistance of the plate material is required...

... variables are cell humidity, pure oxygen or air as oxidizer, and current density. Three groups of single cells were tested: a graphite cell, a stainless steel cell (treated and original), and a thin, small, treated stainless steel cell. A treated cell here means using an electrochemical treatment to improve...

...Yu-Ming Lee; Shuo-Jen Lee; Chih-Yuan Lee; Ping-Hung Lai In this paper, a thin SS304 stainless steel is chosen as metallic bipolar plate. In order to improve the surface qualities, such as anticorrosion capability, surface roughness, and clearness, the surface of bipolar plate is treated...

...Heli Wang; Glenn Teeter; John A. Turner An austenite 349 stainless steel was nitrided via nitrogen plasma. Glancing angle X-ray diffraction patterns suggest that the nitrided layer is amorphous. X-ray photoelectron spectroscopy analysis indicated that the plasma nitridation process produced bulk...

...Heli Wang; Glenn Teeter; John A. Turner Austenitic 349 stainless steel was nitrided in an NH 3 plasma. A low interfacial contact resistance was obtained with the nitrided steel. Glancing angle X-ray diffraction suggests that the nitrided layer is very thin and possibly amorphous. X-ray...

... and The Kansai Electric Power Co., Inc. High overall efficiency system units are designed in such a way that their output power can be modularized by altering the number of stacks inside the SOFC modules. The seal-less design concept is adopted to build generic stacks made up of stainless steel separators...

...Young-Sung Yoo; Taehee Lee; Jin Hyeok Choi; Tae-Sung Park; Je-Myung Oh; Chong-Young Kim The planar type 1 kW class solid oxide fuel cell (SOFC) stack using metallic interconnects such as ferritic stainless steel has been developed for application in a residential power generation system...

...) and interconnects made by ferritic stainless steels. These metallic materials match very well the thermal expansion behavior of the ASCs and can be manufactured and formed using cheaper and easier processes than ceramics or chromium alloys. Nevertheless, some problems remain to be solved with these components...

...) and a YSZ (electrolyte) system are integrated in a stack using bipolar plates made of a special ferritic stainless steel acting as current collector and gas distributor. Materials, processes, and surface treatments have been selected and optimized to reduce mismatch between different components...

...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...

... was carried out using stainless steel as bipolar plate in which flow channels were fabricated by photochemical etching technology. The maximum power density of the micro DMFC reaches 62.5 mW ∕ cm 2 at 40 ° C and 100 mW ∕ cm 2 at 60 ° C with atmospheric pressure. An 8-cell air-breathing DMFC stack has been...

... are fabricated from ferritic stainless steel. The experiments were performed over a range of steam inlet mole fractions (0.1–0.6), gas flow rates ( 1000 - 4000 sccm ) , and current densities ( 0 - 0.38 A ∕ cm 2 ) . Steam consumption rates associated with electrolysis were measured directly using inlet and outlet...

..., scandia-stabilized zirconia (ScSZ) was employed as the electrolyte. A compact catalytic partial oxidation (CPOx) reformer was employed and thin ferritic stainless steel was used for the interconnect bipolar plates. As a result, a carefully designed internal manifold-type 68 cell stack produced an output...

... 2004 30 07 2004 molten carbonate fuel cells electrodeposits plates (structures) electrodeposition aluminium alloys chemical interdiffusion stainless steel corrosion resistance seals (stoppers) Electrospark deposition Al-diffusion coatings Molten carbonate corrosion...