Working Air Battery

[jeanna]

@MK1,
It seems a good idea, but I still only get 1.74v
carbon//separator/copper/aluminum//separator/magnesium
The potential difference remains the same.
I am getting 3.6mA which, considering the short length of each part, seems to to be quite high, so this might give a mA boost. It is more materials

===
I keep trying to make carbon in a different place and also tried by mistake:

carbon//separator/aluminum/copper//separator/magnesium
so it kind of zig zagged the galvanic chart, and brought the results down on both volts and amps.
This time I got 1.6v and 1.8mA

So much for the thought that more materials brought me more mA 

I hope I am following what you are saying!

jeanna

[Mk1]

@jeanna

This is strange it will not work like a voltaic pile either 

I believe you did it right .

But you wroth carbon//separator/copper/aluminum//separator/magnesium

  copper and aluminum are in the wrong order , the idea is 2 battery one between the magnesium and copper and one between the carbon and aluminum , but i am beginning to see that if you don't use the same pair it will not add up . It loses .5 volts between copper and aluminum .

[Mk1]

@all

The separator makes a huge difference in the results .

I made a battery a good month ago , from 2 wires copper and aluminum .

i used a dress shirt material , very thin cotton and it is still working bone dry for weeks .

Mark

[Mk1]

@All

Pictures of the wire battery , the volts are still really high , the amps are real low 35 micro amp rises to 3.5 miliamp when wet , but the design is the problem here .

[jeanna]

@jeanna

This is strange it will not work like a voltaic pile either 

I believe you did it right .

But you wrote carbon//separator/copper/aluminum//separator/magnesium

  copper and aluminum are in the wrong order , the idea is 2 battery one between the magnesium and copper and one between the carbon and aluminum , but i am beginning to see that if you don't use the same pair it will not add up . It loses .5 volts between copper and aluminum .

Actually, I did it both ways and the one in the order you copied, and say is wrong,  is the one that seemed to have higher v and mA to it.
This is really small and hard to work, almost  like your wire in that way.

The concept is interesting, and I don't see why it doesn't work better.
I still think I am making a mistake, but, I cannot find it.
Maybe if I made a bigger one, it would last longer, or give some other improvement. And maybe it really does give more mA at less cost to the materials.


jeanna