That is pretty common. The silliest thing you can do is to put all type of sulfates into batteries in the hope of solving an issue. Urban legends will never die. Pencil lead can include some weird compounds in addition to carbon (how to recondition any battery). There are plenty of carbon powder producers. Vehicle tyres have to do with 50% carbon.
Does not cost an arm and a leg. Afdhal- I get cadmium from utilized NiCd cells-aaa or aa sizes- such as discovered in solar garden lights- after a few years they are thrown away as NiCd is worn- simply cut around top crimp with hacksaw, unravel s/s case with cutter, withdraw contents- external foil is cadmium, inner foil is nickel, & some solid electrolyte & seperator- all injury in spiral pattern.
To obtain Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & release hazardous fumes- do outside -do not breathe vapours!!! When cadmium is completely liquified( & in some cases the electrolyte cadmium mix is a charming green, depending upon quality of cadmium from cell maker!)- task done! Got ta state- the mix I have actually contributed to batt cells does not appear to assist! In reality- I got ta say the ONLY thing I utilized that worked was INOX MX2( in 1 batt up until now- I will get some more MX2 &try; & try; in other batts to confirm yes or no! Apart from that, the other thing is that the batt itself need to be just lightly sulfated).
Still it is proficient at determining o/c cell/s in batt- pulses go up higher with degree of o/c! have actually seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others nearly so!. 12 volt battery reconditioning. Bevan - I would recommend refining the cadmium by making the cadmium you recuperated from the NiCds the positive in an electroplating cell.
Use a tin wire or solder wire unfavorable. Source of power can be 12V battery. Place 220 ohm series resistor. The cadmium that gets plated onto the unfavorable will be dendritic and pure. The real voltage throughout the electroplating cell will be under 0. auto battery reconditioning. 5V. The green you explain would be nickel contamination.
Bevan - That's imaginative! Why didn't I think of that prior to? I will attempt it. John - You're one smart gentleman, thanks for the information. Bevan - I think I may have at long last handled to determine what cadmium sulfate does. It definitely electroplates out onto the negative grid metal when the battery is intentionally pressed into regulated overcharge.
This assists the lead sulfate nearest the grids to end up being active again and to be transformed into lead and sulfate ions. Repeated charging, discharging spreads the conductive environment slowly and gradually into the bulk of the lead sulfate. The process seems to have a limit. reconditioning battery. It would appear the secret to attaining 100% desulfation is to determine how to get conduction to spread out into 100% of the sulfate.
Adding progressively more just develops dendrites and triggers shorts. The descriptions provided by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are used and that their treatment strips it away is pure dream. The sulfate remains right where it is. It is converted. While both favorable and negative plates can end up being sulfated, the favorable sulfation merely reverses when the battery is charged.
John - If I comprehend you correctly, did you meant all the cadmium does is electroplating itself on the negative grid?If so, wouldn't just copper is good enough? Afdhal- it is simply John's theory- but i would state cadmium does not just plate itself- requirements driving- so does copper- BUT copper is a non laster in H2SO4! As are most metals! Lead lasts longer than most! Afdhal - No, copper and copper sulfate are not suitable.
Cadmium has an electrochemical capacity of -0. 4030V. Lead has an electrochemical potential of -0. 1262V. The electrochemical potential of cadmium is such that it prevents electroplating when a battery is standing. It is just when a battery is put on gassing charge that the voltage at the unfavorable plate favors electroplating.
Copper has an electrochemical potential Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will simply plate onto the negatives regardless and stay there, triggering the plates to gas and to self discharge and to sulfate. The electrochemical capacities of aluminum, magnesium, potassium, salt, etc. are all far to negative, the metals far too reactive in battery acid, for anything of benefit to occur.
Bevan - It is not a theory. I ran the experiments. Constructed lead-acid cells in glass jars. I observed and determined (recondition 12 volt battery). John- to my understanding, what you have actually done is an experiment- then forwarded an hypothesis to what you observed- then you advanced a theory- NOW-as to that theory to end up being REALITY- your findings MUST be duplicated by other like minded individuals- can't see that occurring simply yet- still, there is hope.
Bevan - I personally could not care less what people opine about sulfation. I ran an experiment designed to respond to yes or no, whether batteries can be desulfated. My experiment showed that a person may get a quarter to a third short-term recovery. I would not describe that as a "yes".
Others can easily repeat my expermiment. Human nature being what it is, some people so dislike an awful truth obstructing of a lovely story, their counter arguments will always be in words, not deeds. The base test: Desulfation stays a struggling market. Something is wrong. There is no conspiracy.
If you want batteries to last longer, work on them, help them while they are still serviceable, don't fuss over them after they "signed off". We don't feed medicine to dead individuals. Why do it to batteries? The experiment is described on "CAN BATTERIES BE BROUGHT BACK". Well, anybody can say what they desire about sulfation or desulfation, but including Epsom salt (solution= 8 teaspoonfuls Epsom salts liquified in 1 pint pure water) coupled with a 3 day trickle charge helped my truck battery retain a better charge.
The battery performed well through the winter season after my treatment and is still going strong! I don't understand how much longer it will live, however I will let you understand when it lastly dies. Adios Shadmin - The part of the 1 pint of water that you handled to take into the battery assisted; the three days extra drip charge assisted; the Epsom salts satisfied your belief - battery recondition.
ALL the so-called solutions incl epson, alum, cadmium, etc, etc, etc ad infinitum do ABSOLUTELY NOTHING!!! But generally harm!! What lots of posters like to believe is that THEIR!!! treatment made a distinction!! BUT ignore all the other parameters of battery response incl temperature, humidity etc in their effort to understand a complicated subject!! (recondition old battery). The bare truth is that all automobile charge systems do not totally charge the l/a starter batt- but only around 14v- for several various factors.
Bevan - Where does the acid that raised your SG come from? John- just returned on line after week after changing ISP!!! The increased sg is due to the dollop in the 15 ml added of Inox Mx2 to each cell! IT definitely is NOT due to decreasing sulfation & hence raising sg!. automotive battery reconditioning.