Influence of bisulphate ILs additives to electrolyte on lead acid battery formation process

摘要

Although lead-acid battery was invented in 1859, it is still one of the most important chemical power sources (1). It has good electrical properties, low production cost, minor recycling problem etc. It has few disadvantages, like low power density (W/kg), corrosive electrolyte etc. During over 150 years of Pb/PbO2 cells history, continuous development to reduce disadvantage and improve utility feature was observed. New techniques of grid production, additives to active mass for start-stop system, electrolyte immobilization on glass mat (AGM) are the most spectacular. From the beginning of XXI century research of ionic liquids (ILs) influence on lead acid battery properties is noticeable. Research areas concerning lead alloy corrosion, conductivity of electrolyte, reaction with grey lead oxide etc. (2-6) During Pb-A battery production, one on the most energy consuming stage is electroformation, especially of positive active mass (1). Presented research concerns change of electrochemical properties of lead-acid battery electrodes during formation process with electrolyte containing bisulfate ionic liquid additives.