The method for recharging Lead Acid batteries without using electricity has been around for a while and is used today as a method to recycle lead batteries. This method uses heat energy and not electrical energy to recycle the resources. Down the production chain you’ll likely find electricity being used but this really isn’t a gotcha.
This method removes PbSO4 from the plates using chemistry rather than electrochemistry
This method won’t work with car batteries, you have to make your own Plante plates.
Sodium Hydroxide NaOH and Potassium Hydroxide KOH. There is a point about resetting the result of acid reactions with basic reactions.
NaOH works better because it reacts more slowly with Lead but quickly with PbSO4. You are left with H2 and recyclable compounds when using either alkalines
Start with a fresh plate in functional battery acid and then discharge the electricity. Remove and recycle the battery acid. Wash the plate with distilled water. Flood the plates with weak NaOH solution. Wash with distilled water. Insert the plate into the fresh recycled battery acid. Battery is recharged without using electricity.
You are left with Sodium Plumbite in the NaOH solution. that matter can be extracted and recycled without exotic or extreme methods.
This looks really good. There is lots of opportunity here. Things work out according to the internet. You get to use gasifiers because of the heat the process needs.
Use NaOH or HCL. This process consumes H2SO4 so you have to recycle the byproducts back into H2SO4 or it will be too expensive. KOH will work but K2SO4 cannot be reclaimed. K2SO4 is a fertilizer but it sells for much much less than H2SO4.
There is catch in both approaches but things are pretty clear. Everything recycles. I’ll post some details on each reaction later on
HCl Route. Makes H2S04 in the front and in the end You get more H2SO4 then when you start. An inexpensive route to H2SO4. Makes PbCl2 Electrolysis can be used, chelation is does not use electricity and makes H2SO4
An HCL oven strongly recommended. This will make things much less expensive. H2 and Cl2 is easy for recycling people to make.
HCL plus Pb no reaction
PbO2 + 4HCl → PbCl2 + Cl2 + 2H2O
PbSO4 + 2 HCl = PbCl2 + H2SO4
Solubility -PbCl2 is soluble
The solubility of PbCl₂ is affected by temperature. Generally, solubility increases with temperature, so precipitation might be more favorable at lower temperatures.
Splitting PbCl2 into Pb + Cl2, Electrolysis lots of electricity looks like. Chelation uses no electricity but it might be expensive but it makes H2SO4
Energy Consumption: In a typical molten-salt electrolysis process to recover lead from PbCl2, the average energy requirement was found to be 0.52 kWh/lb Pb (or approximately 1.15 kWh/kg Pb). This value is considered low and contributes to making this method attractive compared to traditional smelting processes.
PbCl2 needs lots of electricity to separate Pb from Cl2 infact almost the same to charge a battery using electrolysis. It takes 1Kwh to fix 1 lbs of lead and that is the amount of PbSO4 made during the discharge
Chelation is used to make PbS. ETDA looks inexpensive because it’s used for environmental remediation.
PbS becomes PB plus SO2 with heat, becomes H2SO3 in water, becomes H2SO4 with oxidation.
So I’m wondering, are you planning to rebuild bad batteries for resale, or just recharge good but discharged batteries. It’s hard to imagine doing the chemistry you describe, on something like a 12 volt deep cycle battery, for the cost of the1 kwh it would take to recharge it electrically.
I’m here to network with people that want to make lotsa money with PURPA power generation contracts. I really don’t wanna drive my car on wood. The same law that lets you sell wind and solar power to the grid allows for biomass sales too. Biomass power sales are pretty f,/-% up however. Still, there is great virtue in recycling wastes, to make money where others were too dull to seize an opportunity.
I evaluate “pyrolysis” and I have a wood cooking oven to separate lignin, hemicellulose and cellulose at 725F - called dry distillation.
The gasifiers work well as others have made it so. I can’t help with this, its done pretty good now
I have to develop and evaluate several pathways. This pathway uses 4’ X 4’ battery plates in giant flush batteries to make and sell electricity to the grid.
While virtuous, I am not seeing how 4x4 plates of lead acid batteries are going to be profitable UNLESS you are recooping the heat from the biomass process. And even then, I am not sure lead acid is going to be the best/lowest cost option.
Hi I’m not worried about recouping biomass fuel cost. Wood power is used on the margins. Wood mass fuel is available here in Florida for free, we have seaweed and hurricane blow down and flood wood in Texas and North Carolina and generally $40 a ton if it’s not free.
Biomass heat isn’t central to this. Its needed on the margins but not for every cycle. Its needed to melt the HDPE once to make cases. Needed to melt lead plates. Needed to make HCL needed to melt PbS and PbO but these are all marginal activities… The discharge cycle skims off approx 5% or less you won’t even have to batch until 20 cycles. Heat isn’t needed for the actual production cycle .
Chemicals recharge batteries in ten minutes, charging takes 8 hours.
This PbCl2 stuff sells for $10 a gram lead costs $.02 a gram.
PbCl2 is the material you need to make thermal electric units.
Hi this worked so far. These results are early but so far things are up. It leaves lots of residue. Both the HCl and H2O have lots of dark particles. I made two plates 2"x4" x. 5" and I put them in a HDPE cell with auto parts store battery acid. I got .050 volts DC even after a few hours. I discharged with an electrolysis load until I got . 016 volts DC. The plates were much darker Then I washed the plates in distilled water then a soak in 32% Amazon HCl for 20 minutes. Back in the same cell with new H2SO4 and the multimeter reads . 075 volts DC… That’s a boost.
Is this a lead-lead oxide (Plante) cell? If it is, 0.125v is pretty low for a charged cell that would be 2 volts nominal. Pretty low for any chemistry I can think of.
I did my text book stock best. I used classic lead smelting techniques, I made crude and small plates, I made a crude cell with a used strawberry milk carton and garden screen. This wasn’t about torque, this was about showing positive results. That happened. I recharged lead acid batteries without electricity.