HWL Cell

[AbbaRue]

Hello to all battery researchers:
    A group of people are working on the Crystal Battery based on John Hutchison. 
I didn't want to confuse there thread with my own crystal battery research, because I am using different ingredients.
Instead of using Rochelle Salt, my cell uses monoammonium phosphate (MAP)
Which is a common fertilizer sold as MAP or 11-52-0.
Another name for it is ammonium dihydrogen phosphate (ADP).
I will just refer to it as MAP. That's an easy name to remember, the MAP to endless energy.
It is a piezoelectric crystal material which has some very interesting properties, check out this link:

http://www.fsu.com/pages/2007/10/19/adp.html

And this stuff is dirt cheap. The local Co-op sells it for about $850 / tonn.
I bought 100 pounds of it for $55. You can make a lot of cells with 100 pounds of crystals.
Or you can make your own by adding Phosphoric Acid to Ammonia until it turns slightly acidic.
It has no known toxic effects, you can almost eat the stuff, but that isn't recommended.
It is also used for powder fire extinguishers, so that tells you how safe it is around heat.
It also has a much higher melting point then Rochell Salt, which may come in handy down the road.
Melts at about twice the boiling point of water.

This stuff looks really promising. I placed the MAP into a coffee filter and tied it off.
I then place the filter full of MAP into a pot of water and warm it up stirring the bundle around.
I then poured the solution onto a Stainless Steel pie plate and dried it quickly so a thin layer of crystal formed in the plate.
When I place a piece of Aluminum foil on top the the crystal deposit I get over 700mV.
I connected a 100k resistor to it and still got over 700mV. out of it.
This looks promising. I hope some others will join me in this new adventure.

By the way "HWL Cell" stands for "Harold Walter Lehmann's Cell" since I started this project.

Till Later Harold.

[Koen1]

Harold/AbbaRue,

although it is great that you've started your own cell line,
why don't you just keep it in the crystal cell thread?
There's quite a few other variations that don't use the
Rochelle salts either, and they're in that thread still...?

Well enough whining, on the subject of your MAP idea:
interesting

What is the amperage you get with and without the resistor in place?

And you're still going for the SS->Alumina idea, aren't you?
Well it's worth a try.

Keep up the good work.

[helmut]

Hello Harold
Very good to reed,that the crystal battery is developed in pultiple ways.
For me as a reader it is now easy to organice between the topics,since there
is a seperated MAP based battery.

helmut

[resonanceman]

This stuff looks really promising. I placed the MAP into a coffee filter and tied it off.
I then place the filter full of MAP into a pot of water and warm it up stirring the bundle around.
I then poured the solution onto a Stainless Steel pie plate and dried it quickly so a thin layer of crystal formed in the plate.
When I place a piece of Aluminum foil on top the the crystal deposit I get over 700mV.
I connected a 100k resistor to it and still got over 700mV. out of it.
This looks promising. I hope some others will join me in this new adventure.

By the way "HWL Cell" stands for "Harold Walter Lehmann's Cell" since I started this project.

Till Later Harold.

Harold

Just to  make sure  I understand  this .

You  desolve  some Map in water ....... then   you say  you dry it rapidly on  stainless steel......  that  could  mean   boiling off the water ...

I  am  guessing that  the  crystal  layer is  just a few  thousands thick.

have  you  tried getting a similar affect by melting it ?
I would  think that  the  aluminum layer  would  have much  better  electrical connection  if it was  put in place  while the Map was still melted.

gary

[AbbaRue]

I dried it using a convection oven, which is designed to cook food using hot air.
I set the oven at 300 deg. F. and ran it until most of the water was gone.
This formed a thin layer of crystal, then I left it to air dry the rest of the way.
I tried drying it completely but the crystal formed bubbles which I didn't want.
The crystal layer is about 1mm to 2mm thick.

I tried heating the crystals, not a good idea, the whole room smelled of Phosphorus,
and the crystal turned to a gummy mess thats hard to get off.
Heating to the curry temperature should be fine but don't try melting the stuff.

I'm still working on a better way to make cells out of this stuff.
I was thinking of getting some nice white quartz sand and using it for spacers between the plates.
Mix it up together in a little water and placing it between plates, then letting it dry.

My test cell is the SS plate with a 6cm x 4cm piece of Aluminum foil laying across the crystals.
I weighed the foil down with pennies, a simple test cell until I make some better cells.
Measurements:
Open circuit 800mV keeps creeping up had it up over 900mV.
    100k resistor 720mV.
      10k resistor 400mV kept steady over night
        1k resistor  75mV
       100 ohm resistor 32mV pressing on the pennies got it up to 40mV
After removing the 100 ohm resistor the cell jumped up to over 500mV.
And then continued climbing until it reached 800mV after about 5 minutes.

The main problem is the aluminum foil isn't keeping a good connection.
Some kind of conductive powder would be much better.

I'm still thinking up a better solution to this.
I'm considering coins covered with crystal stacked on each other to increase the voltage.

One point I want to make is I haven't applied any voltage to the cell to polarize it.
Doing so could get much better results, I just got the MAP a few days ago and am still learning about it.