We propose the optimal composition of a polyligand ammonium-chloride-fluoride electrolyte and a mode of electrolysis for the deposition of functional coatings formed by tin–nickel alloys. The tin–nickel alloy with a tin content of 65 wt.% and a nickel content of 35 wt.% proves to be the most promising for microelectronics in the case of its application instead of gold coatings. It is shown that the obtained coatings are suitable for soldering with the use of low-temperature solders and acid-free fluxes and for the ultrasonic spot welding. The electrolytic deposits of tin–nickel alloys are investigated as the anodes of lithium–ion batteries by the potentiodynamic and galvanostatic cycling methods. It is shown that the deposits obtained from an alkaline tartrate-trilonate electrolyte are characterized in the first cycles by a high specific capacity of up to 700 mA ∙ h/g. In the course of cycling, this parameter decreases to 500 mA ∙ h/g. The obtained tin–nickel alloys guarantee high densities of charge-discharge currents without mechanical fracture.
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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 52, No. 5, pp. 77–82, September–October, 2016.
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Kublanovsky, V.S., Nikitenko, V.M. & Globa, N.I. Electrochemical Deposition of Corrosion-Resistant Coatings from Tin–Nickel Alloys. Mater Sci 52, 687–693 (2017). https://doi.org/10.1007/s11003-017-0010-1
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DOI: https://doi.org/10.1007/s11003-017-0010-1