Can you make a galvanic cell work with no salt bridge?

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Offline Roju

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Hello.

This week i was playing around with a galvanic cell at school. I made several attempts to make it work without the salt bridge. It was a cell with a copper electrode  and a zink electrode. All my attempts failed.

The thought came to mind that i might be able to make it work if i somehow made the solution surrounding the zink rod concentrated with negative ions, and the solution surrounding the copper rod concentrated with positive ions.

The obvious problem with the idea is getting the solutions with heavily scewed charges. I can't think of any way to achieve this. Is there a way?


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Offline chiralSPO

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Re: Can you make a galvanic cell work with no salt bridge?
« Reply #1 on: 01/04/2016 23:03:00 »
If there is no way to close the circuit, then at best you have a capacitor.

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Offline Bored chemist

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Re: Can you make a galvanic cell work with no salt bridge?
« Reply #2 on: 02/04/2016 01:16:30 »
"Can you make a galvanic cell work with no salt bridge?"
sometimes
https://en.wikipedia.org/wiki/Lead%E2%80%93acid_battery
https://en.wikipedia.org/wiki/Weston_cell
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