Desulfation of a lead-acid battery using pulse technology. (South Carolina Junior Academy Of Sciences Abstracts).This experiment was conducted to test the ability of a commercial circuit to remove lead sulfate sulfate, chemical compound containing the sulfate (SO4) radical. Sulfates are salts or esters of sulfuric acid, H2SO4, formed by replacing one or both of the hydrogens with a metal (e.g., sodium) or a radical (e.g., ammonium or ethyl). from a heavily sulfated lead-acid battery Noun 1. lead-acid battery - a battery with lead electrodes with dilute sulphuric acid as the electrolyte; each cell generates about 2 volts lead-acid accumulator . When a lead-acid battery produces current, it does so by the oxidation-reduction reaction of lead, lead (IV) oxide, and sulfuric acid sulfuric acid, chemical compound, H2SO4, colorless, odorless, extremely corrosive, oily liquid. It is sometimes called oil of vitriol. Concentrated Sulfuric Acid . One of the byproducts of this reaction is lead sulfate, which is an ionic compound In chemistry, an ionic compound is a chemical compound in which ions are held together in a lattice structure by ionic bonds. The positively charged ion is usually a metal ion and the negatively charged ion is non-metallic element or molecule. formed on the surface of the lead and lead (IV) oxide plates within the battery. If a battery sits in a partially or fully discharged state for a prolonged period of time, the lead sulfate will form crystals on the solid plates of the battery. Lead sulfate crystals formed by ionic compounds are by nature poor conductors. When these crystals form on the lead and lead (IV) oxide plates of the battery, the oxidation-reduction reaction can no longer occur on the affected area. The electrical capacitance capacitance, in electricity, capability of a body, system, circuit, or device for storing electric charge. Capacitance is expressed as the ratio of stored charge in coulombs to the impressed potential difference in volts. of the battery will then fall due to both the lack of surface area for the reaction to occur and the lead and sulfate ions in the crystals which cannot react. The results of research indicated that the commercial circuit did not remove the sulfation from the battery to the degree claimed by the manufacturer. Patrick Martin South Carolina Governor's School for Science and Mathematics |
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