Making batteries safer...

[theremart]

I have been considering doing this..

Sepp Hasslberger: How to convert a Lead Acid Battery into an Alkaline Battery

It makes alot of sense to me, if it is true, I could have a bank of batteries outside in the cold charged by the SSG. And I would not have to worry about the nasty sulfuric acid. As well, I could clean the plates off of the sulfur without waiting months for the bedini to do it.

Anybody tried this?

mart

[amigo]

Thanks for the link, I wasn't aware of this until now but it does sound interesting to say the least. Surely someone on the forum here will be able to try it out and report back. I'd do it but I just don't have the facilities or space to muck with lead-acid batteries.

[Chip Shorter]

I will have to remember that next time I lose a battery. Sounds like it works.
Another trick is to drop a couple of pills of asperin into the battery.

[Jetijs]

It just so happened that today I received about 50 dead lead gel cell batteries, that are dried out and dead. If I can get the alum, I will test this on some of these batteries. Sounds very interesting
Thanks

[ren]

Just to let you know guys, there is some talk of Battery building on the Yahoo Bedini SG forums. John posted to see if anyone would like to see some information on building a battery from scratch designed specifically for the sg. I think it is a great idea and a step in the right direction! the above link also looks promising too!

[theremart]

Findings so far...

There is a Yahoo group that has done some of these...

I can get batteries for $10 used that work deep cycle so I have ordered some alum to try this.

There are two types fo alum out there from what I have read so far the Potassium alum is tested as working.

Here is a link of where to get it...

Photographer's Formulary | Potassium Alum - 1 Lb. | 10-0030 1LB



You might want to wait, because I have ordered it, and will report back my results. Also someone on the SSG group is testing this too.

Mart

[theremart]

RE: Aspirin battery

I will have to remember that next time I lose a battery. Sounds like it works.
Another trick is to drop a couple of pills of asperin into the battery.

I have seen links that disprove that... ( but I don't know, I guess I am afraid to do anything to the balance of PH in my batteries ) at least my good ones.

[froot]

I cannot seem to find any detail on the half cell reactions.
So...

Lead acid battery anode:

Pb(s) + H2SO4^-(aq) + H2O(l) <--> PbSO4 + H3O^+(aq) +2e^-

Lead acid battery cathode:

PbO2(s) + H3O^+(aq) + HSO4^-(aq) + 2e^- <--> PbSO4(s) + 5H2O(l)

Proposed Lead alum (AlNa12SiO5) battery anode:

Pb(s) + ?(aq) + H2O(l) <--> Pb? + ?(aq) +?e^-

Proposed lead alum (AlNa12SiO5) battery cathode:

PbO2(s) + ?(aq) + ?(aq) + ?e^- <--> Pb?(s) + 5H2O(l)

Anyone care to fill in the gaps?

Even if you dump the sulfuric acid electrolyte the battery will still be contaminated with residue sulfates which I presume would be undesirable?

[theremart]

Preping the battery..

Today in preparing my battery for this test I put baking soda in the battery with regular boiling water to clean up the plates. I was thinking, baking soda is very alkaline, I wonder..... if the battery would have any voltage with this mixture having removed the sulfuric acid and putting in the baking soda with regular water. It had 10V before I removed the acid.

I was impressed. it had 10V on the meter. I hooked up a computer fan and I ran it off this for about 2 min..

[gmeat]

Better batteries maybe

Hi all,

Take a look at this animation which I thought was interesting.This company seems to have a good idea for making lead acid batteries with better energy density .

Axion Power - Battery Animation



Technology Review: A Cheaper Battery for Hybrid Cars



-Gary

[kumaran]

Hi guys,

I read about this interesting article about a week ago. This caught my interest and I did some testing with old batteries.

I did test on three batteries. First two battery was motorbike battery (12V 4AH lead acid battery). I cleaned up the sulfication with baking soda (left overnight) and then pour alum electrolyte before charging.

Battery A
Before charging voltage : 0.48V
After prep and charging : 2.3V

Battery B
Before charging voltage : 5.6V
After prep and charging : 10.5V

Well the above test does make the standing voltage much higher but the battery were too much damage and cannot recover.

Then I tested the method on sealed lead acid battery (12V 7AH) which has 7.4V. After cleaning with baking soda, again I poured in alum electrolyte and charge it for hours. Today morning I checked the voltage of the battery and it shows 12.36V (impressive result). I didn't do load testing yet but looks like alum electrolyte can replace H2SO4.

[theremart]

Awesome!

Nice,

If I may ask where did you get your Alum? The stuff I ordered is backordered But I have first put in boiling hot baking soda and water, then I put in rain water which will sit in it until the alum arrives.

I know this battery has good cells as it was up to 13V before, I just want to compare this one with alum in it...

Thank you for sharing your results.... I have heard mixed results, but for batteries that are already at lifes end this could be the way to go. Very interested to hearing about your load test.

Mart

Hi guys,

I read about this interesting article about a week ago. This caught my interest and I did some testing with old batteries.

I did test on three batteries. First two battery was motorbike battery (12V 4AH lead acid battery). I cleaned up the sulfication with baking soda (left overnight) and then pour alum electrolyte before charging.

Battery A
Before charging voltage : 0.48V
After prep and charging : 2.3V

Battery B
Before charging voltage : 5.6V
After prep and charging : 10.5V

Well the above test does make the standing voltage much higher but the battery were too much damage and cannot recover.

Then I tested the method on sealed lead acid battery (12V 7AH) which has 7.4V. After cleaning with baking soda, again I poured in alum electrolyte and charge it for hours. Today morning I checked the voltage of the battery and it shows 12.36V (impressive result). I didn't do load testing yet but looks like alum electrolyte can replace H2SO4.

[kumaran]

Hi Matt,

Nice,

If I may ask where did you get your Alum? The stuff I ordered is backordered But I have first put in boiling hot baking soda and water, then I put in rain water which will sit in it until the alum arrives.

Mart

I got it from Indian spice selling grocery shop. First, I really don't know what it was so show the shopkeeper the article where alum used to make pickles.

[kumaran]

Hi guys,

I have done load testing with alum electrolyte battery (12V 7AH). Initial battery voltage was 12.52V. I use car head light lamb (90 watt) as load and power on let it run for 1 hour 20 minutes. After turn of power to load immediate measure of battery voltage shows 4.73V. Charger the battery for 1.5 hour and today morning the battery voltage shows 12.02V. I'll charge the battery again today for another 1 hour to push the voltage higher to 12.5V and above. Looks like the battery works well with alum electrolyte so far.

[Jetijs]

I wonder how the battery would behave if charged with a Bedini SSG