Lead Acid Battery Reconstruction 7 (success + ideas)

I had very minor success (so poor that I should not call it success). Don't do this method to rebuild an old car battery and expect it to be good for a car.

I solved the shorting problem and I have some ideas for doing this quickly. Don't create plates. It takes too long and it failed. Instead put the ground lead oxide into bags with electrodes or simpler yet, press the ground lead oxide into the bottom of each cell and plastic bag the lead plates to separate them from the lead oxide positive side in the bottom.

The 12 volt battery, which I created, is very small capacity.
I measured two recharges/discharges, two different ways:
20 mA-hours at 0.100 amp discharge rate (11 minutes).
20 mA-hours at 0.035 amp discharge rate (35 minutes).

A rechargeable AA battery has seven times that power storage.

A few weeks later I measured a 60% improvement in capacity:
32 mA-hours at 0.035 amp discharge rate (55 minutes).
That is still very tiny but usable for my application.

The best reference touching on why I think the chemical equation on the lead oxide plate is not easy to understand:
http://www.av8n.com/physics/lead-acid.htm

Why do batteries not self-discharge ?
Apparently, a charge builds up on both plates just by inserting them into the electrolyte. This prevents transformation of the plate material unless they are electrically connected.

Category:

Science & Technology

Tags:

• lead
• acid
• battery
• reconstruction
• rebuilding
• experiment

[NutsBoltsAndVolts]

The problem is your method of building plates.

You need a proper grid across the entire plate, power transfer is nothing to what you will get by building plates correctly. Plate material MUST be as close to the grid as possible for max power.

Follow the web site inst - recover old neg plates from old batteries - uses the grids to build new pos plates. Recover the active material from old pos plates, remove sulfates by charging as a cell.

Good effort...

[definitionofis]

@NutsBoltsAndVolts Yes, I can see how recovering the old good negative plates is easy, and possibly reusing the grids of the damaged positive ones would be better than the radical thing I did. I ran out of steam on that project. I see what you mean about proximity. In my other experiments I have come to realise how very small chemical and electromagnet forces are in unorganized small demostrations. It is only in getting the accumulation of horses all pulling together that unleashes real power.

[recorptnh]

Awesome!! That was a good project!! Im rarely interested on videos without girls on it.. buy hey u already got the poles just missing girls for some pole dancing... jk... alrigth kudos for this project

[definitionofis]

@recorptnh Ha Thanks. I haven't watched that in a long while. It gets a lot of hits for such an odd subject.

[fortziii]

perhaps you can just send the used battery to a recycling center...

[TeacherPhilEnglish]

Good job, interesting experiment.