UNIV. NEWS. NORTH-CAUCAS. REG. TECHNICAL SCIENCES SERIES. 2022; 4: 65-69
http://dx.doi.org/10.17213/1560-3644-2022-4-65-69
STUDY OF LEAD-ANTIMONY ELECTRODE POTENTIAL STABILITY FOR LEAD-ACID BATTERIES WITH AUTOMATED CONDITION MONITORING SYSTEM
Liplyavka Miroslav V. – Graduate Student, Department «Chemical Technology», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia.
Mokrievich Igor A. – Master Student, Department «Chemical Technology», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia.
Lipkin Mikhail S. – Doctor of Technical Sciences, Associate Professor, Head of the Department «Chemical Technology», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia, lipkin@yandex.ru
Bakumenko Arina A. – Student Department «Chemical Technology», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia.
Lipkin Semen M. – Candidate of Technical Sciences, Associate Professor, Department «Computer Science and automation of Scientific Research», National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia.
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Abstract
The study of the corrosion behavior and changes in the potential of lead-antimony alloy over time presents. The change in the elemental composition of the surface of the reference electrodes during corrosion has been studied. It is established that the reason for the instability of the electrode potential of the reference electrode made of lead-antimony alloy is the selective dissolution of antimony during its corrosion, which leads to a change in the composition of the surface layer of the electrode. The cyclical nature of the potential change over time as a result of corrosion is found. It is suggested that the anodic dissolution of the alloy during its corrosion corresponds to the model of layer-by-layer etching, this manifests itself in the form of periodic areas of increasing and decreasing potential. The impossibility of using an alloy of this composition as a reference electrode has been established. for example, for example Sn – 1,2 %, Ca – 0,06 %, Ba – 0,015 %.
Keywords: voltammetry, lead–acid batteries, sensor with an additional electrode, local electrochemical analysis, lead-antimony alloy, reference electrode
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