Integrated Manufacturing for Advanced MEAs

Castro, Emory S. De ; Tsou, Yu-Min ; Roelofs, Mark G. ; Polevaya, Olga

PEMEAS U.S.A.

关键词: Membranes;    Fuel Cell Components;    Electrodes;    Polymers;    30 Direct Energy Conversion;   

DOI  :  10.2172/901566
RP-ID  :  DOE/AL/67606
RP-ID  :  FC36-02AL67606
RP-ID  :  901566

美国|英语

来源: UNT Digital Library

【 摘 要 】

This program addressed a two-pronged goal for developing fuel cell components: lowering of precious metal content in membrane electrode assemblies (MEAs), thereby reducing the fuel cell cost, and creating MEAs that can operate at 120oC and 25% RH whereby the system efficiency and effectiveness is greatly improved. In completing this program, we have demonstrated a significant reduction in precious metal while at the same time increasing the power output (achieved 2005 goal of 0.6g/Kw). We have also identified a technology that allows for one step fabrication of MEAs and appears to be a feasible path toward achieving DOE’s 2010 targets for precious metal and power (approaches 0.2g/Kw). Our team partner Du Pont invented a new class of polymer electrolyte membrane that has sufficient stability and conductivity to demonstrate feasibility for operation at 120 oC and low relative humidity. Through the course of this project, the public has benefited greatly from numerous presentations and publications on the technical understanding necessary to achieve these goals.