Nexceris has focused its SOFC stack development work on military applications where high power density, high efficiency, system simplicity and fuel flexibility are desired. A key Nexceris accomplishment was the development of anode technology with unprecedented tolerance to sulfur, which provides a path for SOFC operation on JP-8 fuels without desulfurization. Another important attribute of the Nexceris stack technology is the ability to operate at high single-pass fuel utilization – this greatly simplifies the system design. What follows are two recent examples of ongoing Nexceris SOFC stack technology development.

Nexceris is working with the U.S. Army (TARDEC) on a project aimed at the design, development and demonstration of a 5-kW scale, power dense and sulfur tolerant solid oxide fuel cell stack for military ground vehicle auxiliary power units. Employing Nexceris’ sulfur tolerant stack technology, the stack developed on this project will enable development of an SOFC system capable of operating with JP-8 logistic fuel.

Nexceris is working with the U.S. Air Force (AFRL) on a project aimed at design, development and demonstration of a high power density solid oxide fuel cell stack for military power applications including unmanned aerial systems, unmanned ground systems, vehicle auxiliary power and mobile power generation. The project targets a 2-kW scale SOFC stack with a gravimetric power density of 500 W/kg.