Polymer membranes play a crucial function in many energy and water technologies, including energy storage, water electrolysis and purification, and stationary and transportation power systems. An advantage of Sandia’s membrane technology is that the poly (phenylene) backbone is similar for all applications, with chemical functionalization determining the application space.
Primary Application Area: Water, Waste, Environmental
Technology Development Status: Prototype
FIGURES OF MERIT
Value Proposition: With a larger component of our electricity generation coming from intermittent and variable sources, it is recognized that stationary energy storage and local power generation will be essential for continued growth of the renewable energy markets and stabilization of the electricity grid. In the transportation sector, fuel cell vehicles are emerging as a strong contender to electric vehicles due to shorter refueling times and a longer driving range. With low projected manufacturing costs, high ion conductivities, reduced cross-over, chemical and thermal stability in both acidic and alkaline environments, Sandia's membrane technology is positioned to lower the cost of many energy-water systems. For proton exchange membranes used in acidic fuel cell systems, Sandia’s technology is the only hydrocarbon membrane with performance meeting or exceeding the current state-of-the-art Nafion (Dupont) based membranes, with a projected cost structure below Nafion. In alkaline electrolysis and fuel cells, Nafion is not viable due to stability and cost. The Sandia alkaline polymer membrane opens up new markets, through the use of non-precious metal catalysts, potentially lowering the cost substantially of energy-water systems. In vanadium redox flow batteries, the Sandia membrane is showing superior cross-over performance as compared to Nafion, thereby lowering operational and maintenance costs.
Organization Type: Academic/Gov Lab
Showcase Booth #: 629
GOVT/EXTERNAL FUNDING SOURCES