Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Custom Search

Author Topic: Working Air Battery  (Read 221298 times)

jeanna

  • Hero Member
  • *****
  • Posts: 3546
Re: Working Air Battery
« Reply #180 on: July 20, 2010, 02:39:49 AM »
Huh?

Carbon to copper to magnesium?


Mk1

  • Hero Member
  • *****
  • Posts: 2068
Re: Working Air Battery
« Reply #181 on: July 20, 2010, 02:51:35 AM »
Huh?

Carbon to copper to magnesium?

 :D Sorry Yes !

Mark

jeanna

  • Hero Member
  • *****
  • Posts: 3546
Re: Working Air Battery
« Reply #182 on: July 20, 2010, 03:55:56 AM »
Mark,
I am not sure why you asked me to combine them, but I did.
I put a piece of epsom salts soaked cloth between each layer and started with

the carbon stick inside
 then cloth,
then copper wire wrapped around the cloth,
then more cloth
then magnesium wrapped around that.

Here are the results:

C -- Mg 1.82v
Cu --Mg 1.45
C to Cu  0.4v

jeanna
« Last Edit: July 20, 2010, 04:42:04 AM by jeanna »

markdansie

  • Hero Member
  • *****
  • Posts: 1471
Re: Working Air Battery
« Reply #183 on: July 20, 2010, 04:03:43 AM »
@Jeanna
was that a typo or was it 182v ?
Kind Regards
Mark

Mk1

  • Hero Member
  • *****
  • Posts: 2068
Re: Working Air Battery
« Reply #184 on: July 20, 2010, 04:34:28 AM »
@jeanna

Basically making a magnesium/ copper battery and a copper /carbon battery in series sharing the copper . That way you should have the carbon/magnesium voltage.

Mark

Just use the battery you already have , and add a carbon electrode to the copper.

jeanna

  • Hero Member
  • *****
  • Posts: 3546
Re: Working Air Battery
« Reply #185 on: July 20, 2010, 04:41:35 AM »
@Jeanna
was that a typo or was it 182v ?
Kind Regards
Mark
;D ;D
I wish!
I will fix it. Thanks.
1.82v

jeanna

jeanna

  • Hero Member
  • *****
  • Posts: 3546
Re: Working Air Battery
« Reply #186 on: July 20, 2010, 04:43:52 AM »
@jeanna

Basically making a magnesium/ copper battery and a copper /carbon battery in series sharing the copper . That way you should have the carbon/magnesium voltage.

Mark

Just use the battery you already have , and add a carbon electrode to the copper.

Oh, I see... like Pete's 3 level thing. I will let you know in a moment.

jeanna

jeanna

  • Hero Member
  • *****
  • Posts: 3546
Re: Working Air Battery
« Reply #187 on: July 20, 2010, 04:52:06 AM »
                                  C -- Mg 1.82v
Cu --Mg 1.45 +
C to Cu  0.4v
-----------------
C -- Mg  1.45v

pretty close. I think they are the same separately or summed.

jeanna

jeanna

  • Hero Member
  • *****
  • Posts: 3546
Re: Working Air Battery
« Reply #188 on: July 20, 2010, 06:07:03 PM »
Today, I realized I had made a mistake in the way I hooked up the meter to the 3 electrodes.
So, I repeated the test with the correct placement of meter leads this time.

The result is the same.

The meter only sees the widest voltage difference and reports that.

It is a curious thing and there is a reason to think that sometimes using intermediary electrodes will help, but I do not think that is the case here.
Too bad.

After Conrad mentioned that he won't use magnesium, I began to think about the dangers of using a potential fire hazard inside my house, and so, I have decided to put all my magnesium supply into a 'safer' place, and for safety reasons I have also decided to tape up all the exposed magnesium except for a very thin line down each battery that will allow some moisture to get in. And, I may even cover that up later.

thank you,

jeanna

Mk1

  • Hero Member
  • *****
  • Posts: 2068
Re: Working Air Battery
« Reply #189 on: July 21, 2010, 11:14:12 PM »
@jeanna

Thank you very much , for the experiment !

I know how to solve the issue , if you are still willing .

put one layer of alu foil between the copper and carbon .

 so original battery
 magnesium / separator / copper / separator / carbon

New one you get over 2 volts ...

 magnesium / separator / copper /aluminum/ separator / carbon

No separator between the copper and aluminum .

 

jeanna

  • Hero Member
  • *****
  • Posts: 3546
Re: Working Air Battery
« Reply #190 on: July 22, 2010, 02:16:30 AM »
@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

  • Hero Member
  • *****
  • Posts: 2068
Re: Working Air Battery
« Reply #191 on: July 22, 2010, 02:30:48 AM »
@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

  • Hero Member
  • *****
  • Posts: 2068
Re: Working Air Battery
« Reply #192 on: July 22, 2010, 05:02:42 AM »
@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

  • Hero Member
  • *****
  • Posts: 2068
Re: Working Air Battery
« Reply #193 on: July 22, 2010, 11:50:43 AM »
@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

  • Hero Member
  • *****
  • Posts: 3546
Re: Working Air Battery
« Reply #194 on: July 22, 2010, 07:00:27 PM »
@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