Added: 3 years ago
From: Br0kenMan
Views: 10,004
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  • Regarding your stainless battery. It is quite similar to the battery - Volta Battery If you want a picture of the original battery made by Volta let me know and will send. They were originally called a pile.

  • @abpccpba thanks for the comment. Yes the design was taken from the voltaic pile as it is very economical with surface area. I wanted to slow down the rate of reaction to have the cells last longer which i achieved.

  • put the cell in sunlight and see if theres any notable difference....sunlight hitting water creates a charge, cant recall if its negative or positive

  • have u tried stainless steel and aluminum?

  • Thanks very much. You've spread light on things and it makes perfect sense to me.

  • Oh, and the reason that your LED dims after a few seconds is because the chemical reaction produces gases which surround the electrodes and ask as insulators interrupting the circuit. Professional batteries have chemicals to absorb those gases. Obviously turning off and resuming after a few seconds will have a similar effect ... :o)

  • The reason it drops voltage when a decent load is applied is because tap water is a very poor electrolyte and as a result your battery has a very high internal resistance, so most of the voltage drop goes inside the battery and very little on the load.

  • when u explained the materials for a single cell construction at 1:52, did u mean "stainless steel(SS)->porous/absorbent washer->Zn" instead of "SS->washer->SS"? and what is the name of the absorbent material? thx!

  • Yes sorry SS->porous washer->Zn->repeat. The washer is cut from a car chamois. Super absorbent cloth for drying cars after washing.

  • Can you think of any way to use a patch of ground outside to make a large battery that could be charged? Or perhaps make a large box and fill it with something that could absorb a lot of electric for later use?

  • A large box filled with something would be a capacitor. I believe science researchers are working on slow release capacitors which will eventually replace batteries. Not too far off either.

  • Is your battery still running?

    How many amps you get?

    Thanks.

  • Yes ... still holding charge. I havn't investigated the work out yet. Very low amps, enough to make a LED glow with 3 cells. When a load is applied the voltage drops constantly, havnt played anymore with it yet ... got a little busy with other things.

  • Any reason why it drops so fast when you put a load on it? Just curious, not sure why that would happen

  • Not sure either, so i made a small 3 cell link and a LED goes dim after 5-15 seconds. If i lift it for a second and reconnect it will last that long again. . Acting a little capacitor like.

  • its because the led (as a load) is obsorbing most of the electricity, so not very much gets to the meter.

  • Yes simple chemical reaction. The energy comes from the potential voltage difference between the metals. Free electrons try to find balance by moving through the connected wires and load. The stainless steel resists corrosion which stops the process. So far it has run for 3 months with a steady standing voltage.

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