I now have a 3D printer and created a version of this battery utilizing 3D printing.
Using a fully sodium aluminum sulfate electrolyte and starting from fresh raw Pb active materials and lead-tin solder wire for current collectors the voltage increases to the full 2.1v resting voltage and 2v nominal.With the same ph 3-4 electrolyte. specific gravity is right at 1.28.
Starting from raw materials. pasting the 3D printed grid structure with current collectors layed in it and drying and curing utilizing exclusively the sodium aluminum sulfate electrolyte from scratch results in the highest voltage and performance so far.
Capacity is almost on par with standard electrolyte too. (75-80% of standard) Accounting for the deeper allowed discharges. it's able to keep up with standard lead acid batteries. but with none of the drawbacks. no sulfation. no degradation or damage on full discharge. lower gas evolution and lower electrolyte mist/spray. and very resistant to overcharging.
No zinc required. Using ordinary Pb/PbO/PbO2 active materials. These results are fantastic and unprecedented.
Higher than the 1.93-1.96v achieved before. and holds voltage flatter and much closer to 2v under load for more of it's discharge duration as well.

 

Could we have similar info in, say three years, vis a vis long term service? Not an unrealistic request, methinks.

 

Do you have the chemistry knowledge to write down the chemical equation describing the reaction that it’s taking place?