CCS and Power Systems

Advanced Energy Systems - Solid Oxide Fuel Cells

Understanding of Solid Oxide Fuel Cell Stack in Pressurized Conditions

Performer: US Department of the Navy

Project No: FE0005652

Program Background and Project Benefits

The U.S. Department of Energy (DOE) is developing the next generation of efficient fossil fuel technologies capable of producing affordable electric power with near-zero emissions. The Solid Oxide Fuel Cell (SOFC) program at DOE’s National Energy Technology Laboratory (NETL) is focused on developing low-cost, highly efficient SOFC power systems that are capable of simultaneously producing electric power, from either natural gas or coal, with carbon capture capabilities. Research is directed towards the technologies that are critical to the commercialization of SOFC technology. To successfully complete the development of SOFC technology from the present state to the point of commercial readiness, the SOFC Program efforts are aligned into three Key Technologies:

(1) Anode, Cathode, and Electrolyte (AEC) Development
(2) Atmospheric Pressure Systems
(3) Pressurized Systems

The AEC Development Key Technology is R&D in nature whereas the other two, Atmospheric Pressure Systems and Pressurized Systems, are focused on the development, demonstration, and deployment of SOFC power systems.

The AEC Development Key Technology consists of projects that will lead to substantially improved power density, enhanced performance, reduced degradation rate, and more reliable and robust systems. Research is focused on the technologies critical to the commercialization of SOFC technology, such as cathode performance, gas seals, interconnects, failure analysis, coal contaminants, fuel processing, and balance-of-plant components. Research is conducted at universities, national laboratories, small businesses, and other R&D organizations.

The US Navy Undersea Warfare Center, in order to develop an unmanned undersea vehicle, will investigate solid oxide fuel cells as a power source. To accomplish this, Navy researchers will investigate using pure oxygen in their solid oxide fuel cells. Performance of fuel cells using pure oxygen at elevated pressure will also be evaluated. Results of this research could be used for future coal gasification plants as oxygen-blown coal gasifiers could be developed such that pure oxygen is fed to the solid oxide fuel cell power block.

Project Details