That is pretty typical. The silliest thing you can do is to put all kinds of sulfates into batteries in the hope of solving an issue. Urban myth will never ever pass away. Pencil lead can consist of some odd compounds in addition to carbon (battery recondition). There are a lot of carbon powder producers. Vehicle tyres are about 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 couple of years they are thrown away as NiCd is worn- just cut around top crimp with hacksaw, unwind s/s case with cutter, withdraw contents- outer foil is cadmium, inner foil is nickel, & some strong electrolyte & seperator- all injury in spiral pattern.
To get Cadmium Sulphate, boil up some electrolyte- drop cadmium in- will bubble up & release toxic fumes- do outside -do not breathe vapours!!! When cadmium is entirely liquified( & sometimes the electrolyte cadmium mix is a charming green, depending on quality of cadmium from cell maker!)- task done! Got ta say- the mix I have actually included to batt cells does not seem to help! In fact- I got ta say the ONLY thing I used that worked was INOX MX2( in 1 batt so far- I will get some more MX2 &try; & try; in other batts to validate yes or no! Apart from that, the other thing is that the batt itself should be just lightly sulfated).
Still it is proficient at determining o/c cell/s in batt- pulses go up greater with degree of o/c! have seen 1250 volts! Cut open, & broke down pos grid! in 1 cell-others practically so!. recondition 12 volt battery. Bevan - I would suggest refining the cadmium by making the cadmium you recuperated from the NiCds the favorable in an electroplating cell.
Use a tin wire or solder wire unfavorable. Power source can be 12V battery. Insert 220 ohm series resistor. The cadmium that gets plated onto the negative will be dendritic and pure. The actual voltage throughout the electroplating cell will be under 0. auto battery reconditioning. 5V. The green you explain would be nickel contamination.
Bevan - That's creative! Why didn't I think of that before? I will try it. John - You're one smart gentleman, thanks for the information. Bevan - I believe I might have at long last managed to determine what cadmium sulfate does. It absolutely electroplates out onto the unfavorable grid metal when the battery is intentionally pushed into controlled overcharge.
This assists the lead sulfate nearest the grids to become active again and to be transformed into lead and sulfate ions. Repeated charging, discharging spreads the conductive environment gradually and gradually into the bulk of the lead sulfate. The process appears to have a limit. how do you recondition a dead car battery. It would appear the secret to accomplishing 100% desulfation is to determine how to get conduction to spread out into 100% of the sulfate.
Including gradually more merely creates dendrites and triggers shorts. The descriptions offered by desulation merchants that insoluble sulfation undoubtedly coats the plates when batteries are utilized which their treatment strips it away is pure fantasy. The sulfate remains right where it is. It is converted. While both positive and unfavorable plates can become sulfated, the favorable sulfation just reverses when the battery is charged.
John - If I comprehend you correctly, did you suggested all the cadmium does is electroplating itself on the unfavorable grid?If so, wouldn't just copper is good enough? Afdhal- it is simply John's theory- however i would say cadmium does not just plate itself- needs driving- so does copper- BUT copper is a non laster in H2SO4! As are most metals! Lead lasts longer than many! Afdhal - No, copper and copper sulfate are not ideal.
Cadmium has an electrochemical potential of -0. 4030V. Lead has an electrochemical potential of -0. 1262V. The electrochemical capacity 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 negative plate favors electroplating.
Copper has an electrochemical prospective Cu of +0. 5210V and Cu2 of +0. 3419V. Copper will just plate onto the negatives regardless and remain there, causing the plates to gas and to self discharge and to sulfate. The electrochemical capacities of aluminum, magnesium, potassium, sodium, etc. are all far to unfavorable, the metals far too reactive in battery acid, for anything of advantage to take place.
Bevan - It is not a theory. I ran the experiments. Constructed lead-acid cells in glass containers. I observed and measured (how to recondition a wore out battery). John- to my understanding, what you have 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 FACT- your findings MUST be duplicated by other like minded individuals- can't see that happening right now- still, there is hope.
Bevan - I personally might not care less what people suggest about sulfation. I ran an experiment developed to answer yes or no, whether batteries can be desulfated. My experiment revealed that a person may get a quarter to a third short-term healing. I would not describe that as a "yes".
Others can quickly repeat my expermiment. Humanity being what it is, some individuals so do not like an ugly fact getting in the method of a lovely story, their counter arguments will always be in words, not deeds. The litmus test: Desulfation remains a struggling industry. Something is not ideal. There is no conspiracy.
If you desire batteries to last longer, work on them, help them while they are still functional, do not fuss over them after they "signed off". We do not feed medicine to dead individuals. Why do it to batteries? The experiment is explained on "CAN BATTERIES BE RESTORED". Well, anyone can say what they desire about sulfation or desulfation, however including Epsom salt (service= 8 teaspoonfuls Epsom salts dissolved in 1 pint pure water) combined with a 3 day trickle charge assisted my truck battery retain a much better charge.
The battery carried out well through the winter after my treatment and is still going strong! I don't know how much longer it will live, however I will let you understand when it finally passes away. Adios Shadmin - The part of the 1 pint of water that you handled to put into the battery assisted; the 3 days extra drip charge assisted; the Epsom salts pleased your belief - battery reconditioning com.
ALL the so-called treatments incl epson, alum, cadmium, etc, etc, etc ad infinitum not do anything!!! But normally damage!! What numerous posters like to think is that THEIR!!! treatment made a difference!! BUT ignore all the other parameters of battery reaction incl temp, humidity etc in their attempt to make sense of a complicated subject!! (recondition old battery). The bare truth is that all automotive charge systems do not completely charge the l/a starter batt- however just around 14v- for numerous various reasons.
Bevan - Where does the acid that raised your SG come from? John- simply returned on line after week after altering ISP!!! The increased sg is because of the dollop in the 15 ml included of Inox Mx2 to each cell! IT absolutely is NOT due to minimizing sulfation & hence raising sg!. how do you recondition a dead car battery.