Electrolytes
A “solid-state fuel cell is composed primarily of thin films of a catalytic anode employing a zeolite, an anhydrous proton conducting solid electrolyte, a suitable cathode, and current collectors, if necessary, stacked up to make a versatile fuel cell that can handle and utilize a wide variety of fuels.” (Prinz et al, US Patent 7.811,716, 10/12/2010)
Recent US Patents
10/12/1010
7,811,716
Fuel cell
Nakajima et al of Nissan Motor, Japanhas developed a fuel cell consisting of: a cell plate, an electroconductive gas separator and a holder member. The cell includes a solid electrolyte, a cathode and an anode. The basis of the invention is a a high-quality solid electrolyte layer and capable a higher electric-power generating ability. (RDC 1/11/2011).
7,811,714
Solid-state direct methanol thin film fuel cell
Prinz, Gur and Shim of Leland Stanford Junior University, California has developed a direct methanol fuel cell using a solid electrolyte that prevents methanol crossover. Optional chemical barriers may be employed to prevent CO.sub.2 contamination of the electrolyte. (RDC 1/11/2011)
7,811,694
Polymer electrolyte for a direct oxidation fuel cell, method of preparing the same, and direct oxidation fuel cell comprising the same
Song et al of Samsung, South Korea has developed a polymer electrolyte membrane for a direct oxidation fuel cell including a porous polymer support and a hydrocarbon fuel diffusion barrier layer on the support and consisting of an inorganic additive dispersed in a cation exchange resin. (RDC 1/11/2011)