Low-Cost Proton Conducting Membranes for PEM Fuel Cells

Fuel cells for transportation applications are required to operate in a wide temperature range from –20°C to 120°C. Low-cost proton exchange membranes with capabilities in a range of temperature and humidity conditions are urgently needed to meet the DOE fuel cell targets for transportation applications. This Small Business Innovation Research Phase I project aims to develop a new low-cost proton conducting membrane for intermediate-temperature fuel cells based on a novel composite approach, which encompasses both the development of new, highly proton-conducting ionomers and the integration of an intriguing membrane support. The use of cheap materials will result in a low-cost membrane, meeting the DOE cost targets. In Phase I, the process for fabrication of the new PEM will be fully developed; the resultant membranes will be systematically characterized in terms of structural and microstructural features, and measured in terms of chemical and physical properties relevant to intermediate-temperature fuel cell applications to demonstrate feasibility of meeting the DOE targets related to these parameters. The prospective Phase II work shall address long-term durability and development of manufacturing processes to meet the cost targets. Fuel cell is a clean, quiet, energy efficient, and fuel flexible power source. Low-cost proton exchange membrane is the key component in the development of fuel cells to meet the DOE fuel cell targets for transportation applications. This SBIR project will develop a new low-cost membrane to meet the DOE targets. Commercial Applications and Other Benefits: Fuel cells have attracted much interest as a clean, quiet, energy efficient, and fuel flexible power source. The need for an efficient, non-polluting power source for vehicles in urban environments, emphasized by recent legislative initiatives, has resulted in increased attention to the option of fuel-cell-powered vehicles of high efficiency and low tail-pipe emissions. It is also being considered for more traditional stationary power generation, for distribution or on site requirements, such as for hotels, hospitals and the home.