alcohol powered fuelcell -- demo vehicle and a single stack (1W)

[fuelzell]

Here's a demonstration of an ethanol / alcohol powered fuelcell.

The chemical process takes place in an alkaline environment, the anion exchange membrane has been sourced from Membranes International Inc. â,,¢, while the Gas Diffusion Layer is a SIGRACET Gas Diffusion Media â,,¢ and has been provided by SGL CARBON GROUP:

Typical Performance Measures:

         20-30 mA per sqcm
         1...1.5 V per Cell Layer
         15 ... 40 °C

http://www.youtube.com/watch?v=f0ikivavbfw

http://www.youtube.com/watch?v=OiAEEjPiyvs

[hartiberlin]

Many thanks Frank,

I would like to build also some kind of alcohol fuel cell
like this.

Could you please tell us, where these membranes and gas diffusion layers
can be got and what their price is ?
Many thanks.


Vielen Dank Frank,
wo bekommt man diese Membranen und was kosten die circa ?

Würde auch gerne mal eine grössere Zelle bauen, die wenigstens 1 Watt liefern
kann.

Kann man dazu auch Brennspiritus benutzen oder
sind die dort drinnen enthaltenen Vergällungsstoffe
eine Belastung für die Membranen und verkleben
oder verunreinigen die ?

Vielen Dank.

Gruss, Stefan.

[hartiberlin]

Here is a pricelist of the anion membrane:

http://www.membranesinternational.com/tech_pricelist.htm

Pretty expensive.
I wonder if it is possible to selfbuild this somehow ?

[fuelzell]

.....correct, the membrane topic is one of the issues to optimize. Concerning the GDL you could simply take some graphit and make a thin film on the electrode.

[fuelzell]

...the alcohol can be anything between whiskey and rum )