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 Hoarding Bullion Coins and Metals Forums
 Hoarding Copper Bullion Pennies
 Copper-zinc batteries?		  New Topic  New Poll New Poll
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JerrySpringer
Penny Collector Member


385 Posts
Posted - 06/08/2008 :  17:19:53  Show Profile Send JerrySpringer a Private Message  Reply with Quote
Do we have the raw materials in our copper and zinc pennies to build a good battery source if energy costs gets out of control? I half-jokingly ask this, but I will sit down this week and calculate the voltage potentials for a reasonable size cell:

http://www.youtube.com/watch?v=YEwj8kJvj88

TXTim
Penny Pincher Member



239 Posts
Posted - 06/08/2008 :  20:47:08  Show Profile Send TXTim a Private Message  Reply with Quote
Once a zinc penny loses a portion of copper plating and gets immersed in a media with moisture - like dirt, there is a reaction where the zinc is an anode and sacrifices itself to protect the copper and a current will flow - tiny battery. That's where all the corrosion comes in.
Beer is my currency.
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JerrySpringer
Penny Collector Member



385 Posts
Posted - 06/09/2008 :  08:22:05  Show Profile Send JerrySpringer a Private Message  Reply with Quote
Right, I remember for some reason as a teen taking the zinc pennies and sticking them to the inside of my VW bug. I figured that after hearing that pipelines use zinc as an electron source to counteract corrosion that I could do the same with zinc pennies to cut down on the rust on my VW. LOL. The electrical potential for a standardized cell of zinc and copper is 1.1 volts. If you substitute silver for copper, you get a 1.55 volt potential.
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TXTim
Penny Pincher Member



239 Posts
Posted - 06/09/2008 :  22:17:10  Show Profile Send TXTim a Private Message  Reply with Quote
Yes -
They use zinc ribbons under tanks as sacrificial anodes to protect the steel bottoms from rusting out with an impressed current.
Beer is my currency.
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