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Author Topic: DIY ACID FREE CARBON BATTERIES  (Read 73027 times)

Bizzy

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #15 on: February 23, 2011, 07:30:41 PM »
This is thanks to Pirate88179. It should help you to understand why we are using the metals that we do. These same parameters are used in creating earth batteries as well.


http://www.thelenchannel.com/1galv.php

I posted this about 3 years ago on the earth battery topic.  This chart shows that it makes a huge difference what metals are used.  This is why I chose magnesium and carbon a long time ago.  They are the cheapest and easiest to get metals that give the most difference.  I frequently get over 2 volts from my earth battery which is still running after all of this time.

I hope this helps.

Bill

Bizzy

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #16 on: February 23, 2011, 09:11:59 PM »
As I mentioned before the next round of tests I want to look at are the dielectrics between the carbon and magnesium. I want to examine paper, clothe and plastic compared to the mascing tape I am currently using. Can any one recommend a way to secure the clothe around the magnesium rod until the carbon is filled in but doesn'tinterfer with the reaction?

Hi Brad
How did you secure the coffee filters around your conduit?
Thanks
Bizzy

b_rads

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #17 on: February 23, 2011, 10:38:27 PM »
Hi Brad
How did you secure the coffee filters around your conduit?
Thanks
Bizzy
Remember that you only need the filter to stay in place while you are packing the carbon around the conduit.  I use 2 methods that I am showing below.  The filter for the bottom goes on first working my way to the top.  This way the overlaping seams will not allow the carbon to work underneath the filter.

Bizzy

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #18 on: February 24, 2011, 11:23:46 AM »
Good morning
Here are the results of the seperater tests. I wanted to test the differance between clothe paper plastic and tape seperaters....
Below is the results of the tape 1.55 volts

Bizzy

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #19 on: February 24, 2011, 11:29:19 AM »
Here are the results of the paper seperater. I used Brad method of fastening it to the magnesium rod. (thanks)I had a nice fit but only got 1.47 volts. I actually thought I would get closer to the tape readings becuase the mascing tape is also made of paper but I guess the tape is a little thicker.

Bizzy

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #20 on: February 24, 2011, 11:52:56 AM »
Here are the results of the plastic. We attached it as we did the paper. But as you can see .0 volts

Bizzy

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #21 on: February 24, 2011, 11:58:23 AM »
And finally the clothe seperater...We tried several methods and each time the clothe was giving us problems eventually we used thing rubber bands to hold it in place... we got a nice tight fit. Intially I got a reading of 1.72 volts and thought this would work. However when I went downstairs this morning to get official readings(allowing the water to settle over night) I saw we only got 1.32 volts

Bizzy

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #22 on: February 24, 2011, 12:16:10 PM »
It looks like paper and tape seem to work the best. Although if someone can suggest anything else that can be used as a seperater I would be happy to test it next to the tape seperater...
One more observation. When I dismantled the three cells I noticed the activated carbon still retained much of the moisture far better than the coal did in past experiments. I didn't dismantle the fine ground carbon tube but I can tell by the way it absorbed the water it worked just as well as the granualar carbon....
The next step is to grind enough activated carbon to fill all the cells and tape the three magnesium rods from this past experiment. Afterwards I will assemble a complete cell series using tape and and finely ground carbon. At that time I promise I will also have amperage results for everyone who is asking.
I am uncertain when I will have the grinding done since it is a very time consuming process and is done by hand. I thought about using my wife's food processor, but she said "NO!" with a few more colorful metiphors added  :)
Bizzy

b_rads

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #23 on: February 24, 2011, 03:40:31 PM »
It looks like paper and tape seem to work the best.
 I thought about using my wife's food processor, but she said "NO!" with a few more colorful metiphors added  :)
Bizzy
Excellent information.  I am a little surprised the tape worked better than the paper.  Makes me wonder if something in the sticky part of the tape is encouraging the higher voltage.  ???  I will give the tape a try as well.
Funny, Funny, Funny  -  been there done that!

Bizzy

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #24 on: February 24, 2011, 03:46:03 PM »
Excellent information.  I am a little surprised the tape worked better than the paper.  Makes me wonder if something in the sticky part of the tape is encouraging the higher voltage.  ???  I will give the tape a try as well.
Funny, Funny, Funny  -  been there done that!
Hi Brad
I was kind of surprised too. I really thought the results would have been much closer. The only thing I could think of as a reason was that the tape gave a tighter fit. Even though we tried very hard to get the coffee filter to fit just as tight as the tape, the tape undoubtly gave a tighter more complete fit. The only other thing I could think of it that the tape was more dense than the filter.
thanks
Bizzy

markdansie

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #25 on: February 24, 2011, 04:29:41 PM »
I am looking at my coffee grinder to convert the granules
Mark

Bizzy

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #26 on: February 24, 2011, 04:43:34 PM »
I am looking at my coffee grinder to convert the granules
Mark
Hi Mark
I envey you and your grinder I am using a mortar and pestle
Bizzy

b_rads

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #27 on: February 24, 2011, 04:52:33 PM »
@Bizzy
Tried your idea of using more copper in the cell last night.  The first cell in the image below reported 1.13v. Had some copper foil that I lined the cell with.  The second cell in the image reports 1.09v.  This cell is 11 days old and has 120+ run hours on it.  The only other difference between the 2 cells is the first cell is plain tap water ond the second has a weak epsom salt solution.  I will continue to monitor both for best results.  I have really enjoyed this project - the first cell built lives on the patio and is great for relaxing at night.  Just enough light to enjoy a beverage without drawing attention to yourself.  Magnesium fire starter and carbon.

b_rads

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #28 on: February 24, 2011, 04:58:16 PM »
Update on the penny cell battery.  This battery has 120 plus continous run hours and still going strong.  Without using carbon in other build, I would have already started pulling LED off.  I have not had to with this one.  Will continue to monitor this build.  The picture was taken after the 120 hours of run time.

b_rads

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Re: DIY ACID FREE CARBON BATTERIES
« Reply #29 on: February 24, 2011, 05:02:43 PM »
Update on conduit cell battery.  This is my pride and joy build due to the simplicity, and cost.  The six cells in this battery took about an hour to build and the consumable part (conduit) cost less than fifty cents.  All other parts of the battery are reusable.  This picture was taken after 120 plus hours of continous run time.