NASA Fuel Cell and Hydrogen Activities

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NASA Fuel Cell and Hydrogen Activities ( nasa-fuel-cell-and-hydrogen-activities )

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Energy Storage Options for Space Applications • Current energy storage technologies are insufficient for NASA exploration missions • Availability of flight-qualified fuel cells ended with the Space Shuttle Program • Terrestrial fuel cells not directly portable to space applications • Different wetted material requirements (air vs. pure O2) • Different internal flow characteristics • No space-qualified high-pressure electrolyzer exists • ISS O2 Generators are low pressure electrolyzers • Terrestrial electrolyzers have demonstrated >200 ATM operation Energy Options for Space Applications Battery = TRL 9 Primary Fuel Cell = TRL 5 Regenerative Fuel Cell = TRL 3 8

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