Nanocomposite, nanocomposite electrolyte membrane including...

Details Nanocomposite, nanocomposite electrolyte membrane including... Nanocomposite, nanocomposite electrolyte membrane including...

2007-08-29

2010-11-30

Mayes, Melvin C (Department: 1793)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Fuel cell with solid electrolyte

C524S424000, C524S609000, C429S400000, C977S745000

Reexamination Certificate

active

07842430

ABSTRACT:
A nanocomposite includes metal-carbon nanotubes and a sulfonated polysulfone. In the nanocomposite, the sulfonated polysulfone and the metal-carbon nanotubes have strong attraction therebetween due to π-π interactions or van der Waals interactions, and thus the nanocomposite has excellent ionic conductivity and mechanical properties. In addition, the nanocomposite includes a metal that can be used as a catalyst for an anode, and thus the reduction in power generation caused by methanol crossover can be minimized. Therefore, a nanocomposite electrolyte membrane prepared using the nanocomposite can minimize the reduction in power generation caused by the crossover of a polar organic fuel such as methanol. In a fuel cell employing the nanocomposite electrolyte membrane, when an aqueous methanol solution is used as a fuel, crossover of the methanol is more suppressed, and accordingly, the fuel cell has an improved operating efficiency and a longer lifetime.

REFERENCES:
patent: 5235044 (1993-08-01), Mercer et al.
patent: 2006/0233692 (2006-10-01), Scaringe et al.
patent: 2006/0275648 (2006-12-01), Kim et al.
patent: 9-245818 (1997-09-01), None

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