Getting amps from small selfmade DIY Zinc Air cells, amazing !

[derwood]

Stefan, that piece of paper seems to be approximately 10 cm2 and you are getting 2.1 ma. the air electrode at the same size would produce 3 amps. I think the acrylic binder has to much resistance and will only work when submerged in the electrolyte. When submerged, there is a limited supply of O2 therefore current will always be low. I also tried the acrylic binder as an air electrode binder and found that it would not work. Try using a piece of copper the same size as your paper and the current will be around 500 ma.

[hartiberlin]

Okay, I will try the copper elektrode,
but if it will be consumed, that is not my goal.
The goal was to have just only one electrode that will
be consumed: the alufoil and the other electrode should NOT be consumed,
the graphite electrode.

For more info go to this thread:

http://www.overunity.com/index.php?topic=8782.msg229249#msg229249

[derwood]

Also, I have had better results with bleach electrolyte when using aluminum. The copper will not be consumed.

[luishan]

Check it Out.
The sample power of the Zinc Air Battery.

http://www.youtube.com/watch?v=SPXhNnMkpe8

[Tenko]

Wiki says that zinc-air batteries give off energy as the zinc oxidizes. And that they stop giving energy once the zinc is fully oxidized.