Tetrasulfonated Poly(arylene biphenylsulfone ether) Block Copolymer and Its Composite Membrane Containing Highly Sulfonated Blocks

摘要

Among different types of fuel cells, proton exchange membrane (PEM) fuel cells show the highest power density and have been actively investigated for automobile applications. Although Nation has been typically considered as a PEM for practical applications, there are still some limitations such as the high cost and the degradation of proton conductivity at high temperature (> 80 °C).