Selection of the formation mode of a zinc mesh electrode for an electrochromic device with the possibility of energy recovery

Authors

  • Valerii Kotok Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005 Vyatka State University Moskovskaya str., 36, Kirov, Russian Federation, 610000, Ukraine https://orcid.org/0000-0001-8879-7189
  • Vadym Kovalenko Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005 Vyatka State University Moskovskaya str., 36, Kirov, Russian Federation, 610000, Ukraine https://orcid.org/0000-0002-8012-6732

DOI:

https://doi.org/10.15587/1729-4061.2020.200559

Keywords:

electrochromic device, nickel hydroxide, polyvinyl butyral, zinc, zincate, zinc electrode, recuperation, chemical power source, discharge, charge

Abstract

Zinc mesh electrode was proposed for creating a prototype of an electrochromic device capable of recuperating energy spent on coloration. The search for a suitable formation regime of the mesh electrode with required capacity was realized using several approaches: use of multiwire substrates, deposition of zinc from different electrolytes, change in the composition of pasted electrodes. Deposition of zinc from a simple sulfate electrolyte yielded good deposits, however, their capacity wasn’t sufficient. The use of the alkaline zincate electrolyte yielded deposits with developed surface and higher capacity, but the deposits had dark color, poor adhesion and were falling off the substrate. The pasted electrode with a paste of zinc oxide, graphite and polyvinyl butyral demonstrated the highest capacity of – 0.83 mA∙h. The proposed method for forming the zinc mesh electrode was used to develop a prototype of electrochromic devices capable of recuperating electrical energy.

The assembled prototype with the described electrodes demonstrated stable characteristics at a coloration degree of 50 %. The prototype was also capable of working as an energy storage unit and was used to power an LED

Author Biographies

Valerii Kotok, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005 Vyatka State University Moskovskaya str., 36, Kirov, Russian Federation, 610000

PhD, Associate Professor

Department of Processes, Apparatus and General Chemical Technology

Senior Researcher

Competence center "Ecological technologies and systems"

Vadym Kovalenko, Ukrainian State University of Chemical Technology Gagarina ave., 8, Dnipro, Ukraine, 49005 Vyatka State University Moskovskaya str., 36, Kirov, Russian Federation, 610000

PhD, Associate Professor

Department of Analytical Chemistry and Food Additives and Cosmetics

Senior Researcher

Competence center "Ecological technologies and systems"

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Published

2020-04-30

How to Cite

Kotok, V., & Kovalenko, V. (2020). Selection of the formation mode of a zinc mesh electrode for an electrochromic device with the possibility of energy recovery. Eastern-European Journal of Enterprise Technologies, 2(6 (104), 13–20. https://doi.org/10.15587/1729-4061.2020.200559

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Technology organic and inorganic substances