Enhanced cycle life of starter lighting ignition (SLI) type lead–acid batteries with electrolyte modified by ionic liquid

Kędzior, Paweł; Rzeszutek, Waldemar; Wojciechowski, Josephine Q.; Skrzypczak, Andrzej; Lota, Grzegorz

doi:10.1039/d3ra04386j

RSC Adv.

2023

DOI: 10.1039/d3ra04386j

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Enhanced cycle life of starter lighting ignition (SLI) type lead–acid batteries with electrolyte modified by ionic liquid

Paweł Kędzior

Waldemar Rzeszutek

Josephine Q. Wojciechowski

et al.

Abstract: The addition of ionic liquids to the sulfuric acid electrolyte solution in a lead–acid battery inhibits corrosion of current collectors and sulfation of the negative electrode. This increases the service life of the entire device.

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Refining of Secondary Pb with Retention of Sn Using Al and Ca Additions

Malecha,

Świec,

Albrecht

et al. 2024

JOM

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Lead grid from spent lead-acid batteries contains significant amounts of tin and antimony. In classical pyro-refining processes of lead, tin oxidizes and is transferred to dross, making its recovery problematic and expensive. This paper presents an innovative method of pyro-refining lead using metallic aluminum and calcium to purify the lead from contaminants while retaining a higher amount of tin than in the traditional process. The changes in the chemical composition of an impure lead alloy containing tin, under the influence of refining by adding Al and/or Ca, are discussed based on laboratory-scale studies. Microanalysis of the metallic dross formed during the process was conducted. Analyses of the metallic dross microstructures showed that lead impurities, such as Sb, As, Cu, Se, and Te, tend to accumulate in areas containing Al or Ca. The amount and form of dross produced in industrial practice indicate that its removal would be challenging. Therefore, in the second part of the study, the metallic dross was subjected to a reduction process, and the resulting products were analyzed for their chemical and phase composition. The analyses indicate that the degree of impurities return to the lead during reduction varied significantly depending on the method used.

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Refining of Secondary Pb with Retention of Sn Using Al and Ca Additions

Malecha,

Świec,

Albrecht

et al. 2024

JOM

View full text Add to dashboard Cite

show abstract

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Enhanced cycle life of starter lighting ignition (SLI) type lead–acid batteries with electrolyte modified by ionic liquid

Abstract: The addition of ionic liquids to the sulfuric acid electrolyte solution in a lead–acid battery inhibits corrosion of current collectors and sulfation of the negative electrode. This increases the service life of the entire device.

Cited by 1 publication

References 39 publications

Refining of Secondary Pb with Retention of Sn Using Al and Ca Additions

Refining of Secondary Pb with Retention of Sn Using Al and Ca Additions

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