SodaCell – Big voltage, big current
Much more info below –
Note – I say ‘different metals’ during the video, but mean graphite and galvanized steel.
A safer high output cell than my previous best that used carbon and lead electrodes.
This a video for Neat Pete, who has now changed his channel name to ‘a’. His work with graphene recently contained some experiments with baking soda. Quite coincidentally, so did a cell i’d made a short time earlier and is markedly better in all areas of performance than other similar cells.
After 2 months, the original cell is still trundling along, uncharged and the aim was to see if the galvanized steel would corrode – in water with the Nephilim Penny it does, needing bi-monthly cleaning with metal wool.
No corrosion has been seen yet on the galvanized piece, an important long life consideration.
An important note, is that usually 1 electrode in a battery cell will deteriorate. In lead/acid, the positive plates corrode, the negatives always stay relatively fine. The negative plates can be reused from dried out gelcell SLA’s or car batteries.
However, Zero corrosion would extend the useful life of any such higher amperage cell and that is one objective.
The graphite in this cell can’t rust and the galvanized steel appears to be fine so far, where in plain water it would have shown signs of corrosion by now. If the natural sacrificial side is the positive, then the cell will carry on and on for years with no appreciable performance deterioration…in common with the similar carbon/lead.
The flashing circuits are simple blocking oscillators.
if you’ve built Lidmotor’s Penny, it’s very similar, but replacing the large coil with a 120/120 center tapped winding of 40AWG wire on a piece of ferrite.
Scaled up and put in series to 12V, could this cell challenge SLA’s ?
