2nd law violation:new battery type "poor man's Karpen"

[MagnaProp]

Chek out this cell. possibly the watch and clock battery of choice in the future.ten continuous microamps for the last 7days and no sign of halting yet.less than a quarter ml air trapped and completely sealed inside.by now the pressure of this air bubble shouldv come down due to oxygen uptake by anode but nothing yet.

Nicely done. Can you spill the beans on how you made the little cell? Didn't notice it in the picture until now. Only noticed the meter before.

[profitis]

Magnaprop:'Nicely done. Can you spill the beans on how you made the little cell?'

Yes,twas a bismuth anode and silver cathode in NaOH sol but it turned out to be a slow corrosion unfortunately.voltage dropped after a few weeks.back to drawing board again

[MagnaProp]

Thanks for the info profitis. I wonder if doing these experiments in a vacuum container would help stop or slow the corrosion?

Not sure how one would go about putting these items in a vacuum sealed container though?

[profitis]

Magnaprop:'I wonder if doing these experiments in a vacuum container would help stop or slow the corrosion?'

It definitely would reduce it.your giving me ideas now

'Not sure how one would go about putting these items in a vacuum sealed container though?'

Throw in a tiny piece zinc(when I say tiny I mean tiny like two pinheads).this piece mustnot contact the anode or cathode.it will scavenge all O2 trapped inside the container and leave only inert nitrogen(will take a few hours).nitrogen won't react with anything inside there so its essentially a vaccuum.your cell will have to be damn well totaly sealed,squeeze it with fingers to make sure.please post results if you do this

[MagnaProp]

Sounds good. Thanks for that info. I've never built a Karpen before so it may be a while till I get to it.