Alufoil-MnO2 Battery cell with 2.67 Volts ! WOW !

[hartiberlin]

Hi , have a look at this great new Alufoil-MnO2 battery cell with 2.67 Volts per cell ! :

https://www.youtube.com/watch?v=PLgBEUlFSiY

Hmm, I just tried to replicate this with just NaCO3 in Water instead of the NaOH at the aluminium and Epson-Salt mixed
with water and 25 % vinegar instead of the Sulfuric acid at the MnO2 side, but I only got around
1.22 Volts at maximum....

Hmm. seems I really must use these stronger chemicals to replicate it.

Probably really depends on the PH-level of these stronger alkaline base and sulfuric acid ?
I wonder how concentrated was his sulfuric acid ?

Hmm... I don´t like to play with sulfuric acid though...too dangerous..
Regards, Stefan.

[MarkE]

Hi , have a look at this great new Alufoil-MnO2 battery cell with 2.67 Volts per cell ! :

https://www.youtube.com/watch?v=PLgBEUlFSiY

Hmm, I just tried to replicate this with just NaCO3 in Water instead of the NaOH at the aluminium and Epson-Salt mixed
with water and 25 % vinegar instead of the Sulfuric acid at the MnO2 side, but I only got around
1.22 Volts at maximum....

Hmm. seems I really must use these stronger chemicals to replicate it.

Probably really depends on the PH-level of these stronger alkaline base and sulfuric acid ?
I wonder how concentrated was his sulfuric acid ?

Hmm... I don´t like to play with sulfuric acid though...too dangerous..
Regards, Stefan.

Teh sodium hydroxide to sulfuric acid  interface could be problematic due to salt precipitation.

[SeaMonkey]

That is quite interesting Stefan.

It may be possible to use Sodium Bisulfate in place of the
Sulfuric Acid.  It is available in most hardware stores as a
swimming pool additive.

Some years ago I made an aluminum-carbon cell using
a 50% solution of Chlorine Bleach mixed with water as
the electrolyte.  It produced over 2 volts and was able
to light an LED very brightly.

It is nice to know of these various ways to use aluminum
foil to make an electrical cell with readily available household
chemicals.

[profitis]

MarkE'Teh sodium hydroxide to sulfuric acid  interface
could be problematic due to salt precipitation.'

Bridge wif NaCL aq.

[profitis]

Seamonkey'It may be possible to use Sodium Bisulfate in place of
the
Sulfuric Acid'

Bingo