Regenerative Solid Oxide Stack for Energy Storage



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2023 International Conference on Environmnetal Systems


Precision Combustion, Inc. (PCI), with support from NASA, continues to develop unitized, regenerative solid oxide stack system. The technology has been previously demonstrated for power generation with methane reformate and efficient co-electrolysis of H2O and CO2 for energy storage. Challenges and risks regarding carbon deposition and thermal management associated with internal reforming have already been addressed. Advantages include potential to provide high power density, improve reliability, and enable quick cycling between power generation and electrolysis. Durability over multiple cycles and several hundreds of hours of operation has been proven. Prior experimental validation comprised utilizing air on the oxidant side of the solid oxide stack. With NASA support, PCI is advancing stack validation and evaluation for air-independent operation to enable implementation of the regenerative stack technology in future NASA missions to the moon, near-Earth asteroids, and Mars. In this paper, we describe continued developmental efforts undertaken at PCI to experimentally demonstrate a regenerative solid oxide stack capable of air-independent operation for use in In-Situ Resource Utilization applications for future NASA lunar and/or Martian missions.


Saurabh Vilekar, Precision Combustion, Inc., USA
Christian Junaedi, Precision Combustion, Inc.,USA
Kyle Hawley, Precision Combustion, Inc., USA
Eric Allocco, Precision Combustion, Inc., USA
Jessica Rehaag, Precision Combustion, Inc., USA
ICES308: Advanced Technologies for In-Situ Resource Utilization
The 52nd International Conference on Environmental Systems was held in Calgary, Canada, on 16 July 2023 through 20 July 2023.


Regenerative solid oxide stack, Energy storage, ISRU, Electrolysis, SOFC, SOEC, H2O electrolysis, H2O electrolysis, CO2 electrolysis, O2 Production, CH4 Reforming