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Overunity Machines Forum



Large Salt water battery ideas and questions

Started by Mungo, July 25, 2013, 07:41:37 PM

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0 Members and 5 Guests are viewing this topic.

Mungo

Okay here's some shots of the new cell
The cathode is a series of 1/4" copper tubes, lightly sanded and bound around a polyester wick.  The anode is a bundle of aluminum tubes.

The solution in the cell tank is 1.030 sg sea salt.  The cathode lies on top of the tank lid with the wick down in the electrolyte solution.  The anode is, of course, below, fully immersed in the electrolyte.  The additional red lead on the cathode is me beginning to set up a load test and is not connected to anything in this shot.

Voltage started at .58/watt, but climbed almost immediately to .75 watt and stabilized.  Using a small dc motor as load, amps read as 5.23 on the 20mA range.  More in a bit as soon as I determine how stable this is.

After this has run for a bit, I will try, as per suggestions, some caustic soda in the mix.

More in a bit.

profitis

amazing the difference on air exposure makes.now watch what happens when you throw some(not too much)NaOH.

Mungo

 :(  Have to go buy some first :)

Not at all sure what Im seeing with the amps.  The voltage is insufficient to power the little motor, so its mostly acting as a resistor.


profitis

its the aluminum oxide layer hampering the voltage,you have to throw caustic @mungo.put two or 3 cells in series to get a motor going.you can also scrape loudspeaker wires on there to 'hear' the power ratings,the more power the louder the scratch sounds

Mungo

well. humpf.  Added the  :o caustic soda and the voltage actually DROPPED to .70.  Hmmmm  ....anyone care to speculate A) why and b) how much amperage this thing could actually pull per cell?