Journal of The Electrochemical Society · 1977 · 50 citations · 0 references
Natural SciencesChemical EngineeringChemistryElectrochemical EngineeringElectrochemistryInorganic ChemistryBattery Cell ChemistryBattery MaterialsElectrochemical CellsElectrochemical Energy StorageElectrode KineticsElectrode MaterialsAlkaline BatteriesBattery ChemistryBattery Electrode KineticsElectrode InterphaseElectrode Reaction KineticsElectrode Reaction MechanismsLead-acid BatteriesVoltammetry
The effect of phosphoric acid on the positive electrode reaction in a lead‐acid battery is studied by cyclic voltammetry. It is proposed that phosphate reversibly adsorbs on the during charge, and modifies the crystal growth of on the lead grid. The form of produced in the presence of phosphate is not easily reduced to lead sulfate and, therefore, the positive grid does not become insulated from the active material. The limit of this effect is reached at a low concentration of phosphoric acid.