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for leveling peak and intermittent power usage with sources such as solar cells or wind turbines. By 1996 he produced a 50-watt prototype single proton-exchange membrane cell which operated for 1,700 ten-minute charge-discharge cycles, and degradation was less than a few percent at the highest
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By definition, the process of any fuel cell could be reversed. However, a given device is usually optimized for operating in one mode and may not be built in such a way that it can be operated backwards. Fuel cells operated backwards generally do not make very efficient systems unless they are
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current densities. A rated power of 18.5 kW URFC was installed in the Helios and was tested on-board during test flights in 2003. The aircraft unfortunately crashed on its second URFC test flight June 26, 2003.
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physicist Fred
Mitlitsky studied the possibilities of reversible technology. In the mid-1990s Mitlitsky received some funding from
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122:"NASA - Dryden Flight Research Center - News Room: News Releases: SECOND HELIOS FUEL CELL CHECKOUT FLIGHT SET FOR THURSDAY"
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to produce electricity. Both modes are done with the same fuel cell stack
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and function in the other mode as a fuel cell recombining oxygen and
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2003-Unitized regenerative fuel cell system development
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656:Standard electrode potential (data page)
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48:, unitized regenerative fuel cells and
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110:The unitized regenerative fuel cell
560:Materials produced by electrolysis
219:Proton-exchange membrane fuel cell
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134:from the original on 2017-06-30.
362:Unitized regenerative fuel cell
18:unitized regenerative fuel cell
496:Electrolysis of carbon dioxide
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357:Solid oxide electrolyzer cell
44:purpose-built to do so as in
695:. You can help Knowledge by
546:Electrochemical fluorination
457:Standard electrode potential
240:Direct borohydride fuel cell
600:Hydrogen evolution reaction
327:Membrane electrode assembly
270:Reformed methanol fuel cell
86:Glossary of fuel cell terms
46:high pressure electrolyzers
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471:Betts electrolytic process
347:Protonic ceramic fuel cell
317:Electro-galvanic fuel cell
209:Molten carbonate fuel cell
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337:Photoelectrochemical cell
255:Direct methanol fuel cell
214:Phosphoric acid fuel cell
342:Proton-exchange membrane
250:Direct-ethanol fuel cell
26:proton exchange membrane
481:Castner–Kellner process
332:Membraneless Fuel Cells
265:Metal hydride fuel cell
245:Direct carbon fuel cell
50:regenerative fuel cells
757:Electrochemistry stubs
691:-related article is a
464:Electrolytic processes
352:Regenerative fuel cell
291:Enzymatic biofuel cell
501:Electrolysis of water
260:Formic acid fuel cell
224:Solid oxide fuel cell
91:Hydrogen technologies
30:electrolysis of water
511:Hall–Héroult process
451:Articles related to
73:Department of Energy
752:Hydrogen production
486:Chloralkali process
296:Microbial fuel cell
67:for development of
590:Electrolysed water
521:Kolbe electrolysis
516:Hofmann voltameter
204:Alkaline fuel cell
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34:regenerative mode
28:which can do the
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24:based on the
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697:expanding it
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620:Sodium metal
570:(extraction)
530:Dow process
453:electrolysis
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322:Flow battery
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38:hydrogen gas
20:(URFC) is a
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661:Electrology
651:Gas cracker
312:Blue energy
742:Fuel cells
736:Categories
491:Downs cell
190:Fuel cells
97:References
567:Aluminium
539:Magnesium
61:Livermore
22:fuel cell
639:See also
595:Fluorine
580:Chlorine
410:Glossary
374:Hydrogen
132:Archived
80:See also
534:Bromine
397:Vehicle
392:Storage
387:Station
382:Economy
233:By fuel
56:History
585:Copper
305:Others
69:Helios
687:This
693:stub
630:Zinc
127:NASA
65:NASA
32:in
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.