giant seawater battery... why not?
27 April 2012, 10:38 PM
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giant seawater battery... why not?
Hi this is a joke question but google cant answer it so i thought you lot could show how clever you all are!
Okay so if i remember rightly early batteries used seawater.
Can anyone sciency explain why we cant use the sea itself to build a giant battery?
If you can get 1v from 5 mug fulls of seawater why cant we build huge electrodes in the sea to make a massive battery, or millions of small electrodes to build huge banks of cells? The sea is so bloody big surely with large enough electrodes it could power the world for ever couldn't it?
Would it **** up the sealife? (Gf says the fish would get electrocuted, i said electric eels would love it
)
Would it poison us with gas of some sort?
How big would the electrode need to be to say power london?
Is it theoretically possible or not?
Would it turn the sea into fresh water eventually?
If you found 2 cliffs both on the same sea each rich in a different metallic element could you use them or the sea bed as one electrode?
Boogered if i know.
Okay so if i remember rightly early batteries used seawater.
Can anyone sciency explain why we cant use the sea itself to build a giant battery?
If you can get 1v from 5 mug fulls of seawater why cant we build huge electrodes in the sea to make a massive battery, or millions of small electrodes to build huge banks of cells? The sea is so bloody big surely with large enough electrodes it could power the world for ever couldn't it?
Would it **** up the sealife? (Gf says the fish would get electrocuted, i said electric eels would love it
)Would it poison us with gas of some sort?
How big would the electrode need to be to say power london?
Is it theoretically possible or not?
Would it turn the sea into fresh water eventually?
If you found 2 cliffs both on the same sea each rich in a different metallic element could you use them or the sea bed as one electrode?
Boogered if i know.
28 April 2012, 10:13 AM
#6
Its easier to stick a big coil of cable under a high voltage power line 
I think the issue with a giant sea water battery would be surface areas of the anode and cathode combined with the separation distances required. If you ever look inside a car battery the surface areas of anodes and cathode probably would cover half a tennis court...thats why they are so heavy...alot of lead in there which is only wafer thin .
I think the issue with a giant sea water battery would be surface areas of the anode and cathode combined with the separation distances required. If you ever look inside a car battery the surface areas of anodes and cathode probably would cover half a tennis court...thats why they are so heavy...alot of lead in there which is only wafer thin .
Last edited by ALi-B; 28 April 2012 at 10:17 AM.
28 April 2012, 02:33 PM
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...and we could fit miniature windmills to our cars and charge batteries from the flow of air as we drive, and fit solar panels in our front rooms to be charged from our light bulbs?
...or, we could read a "Peter and Jane" book on simple fizziks and try to understand how fings werk
mb
...or, we could read a "Peter and Jane" book on simple fizziks and try to understand how fings werk
mb
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