SYNTHESIS OF A GEL-LIKE ELECTROLYTE WITH A COPOLYMER THAT REDUCES THE “SHUTTLE” EFFECT OF SODIUM-SULFUR                           BATTERIES

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Published: 24.04.2025
DOI: https://doi.org/10.70769/3030-3214.SRT.3.2.2025.9
Keywords:
Internal resistance, electrochemical stability, sodium-sulfur battery, passivation, polymer electrolyte, copolymer gel electrolyte, composite cathode from wastewater salt, energy storage system, carbon nanotubes, shuttle effect, nominal specific capacity

Main Article Content

Khakimov, F.Sh.
Докторант, Ферганский государственный технический университет, Фергана, Узбекистан , DSc doktorant, Farg‘ona davlat texnika universteti, Farg‘ona, O‘zbekiston , Doctoral student, Fergana State Technical University, Fergana, Uzbekistan
https://orcid.org/0000-0001-6339-3946 (unauthenticated)
Jalolov, J.M.
Ассистент, Ферганский государственный технический университет, Фергана, Узбекистан , Assistent, Farg‘ona davlat texnika universteti, Farg‘ona, O‘zbekiston , Assistant, Fergana State Technical University, Fergana, Uzbekistan
https://orcid.org/0009-0009-2926-2219 (unauthenticated)
Khamdamova, Sh.Sh.
Проректор по учебной работе, доктор наук, профессор, Международный институт пищевых технологий и инжиниринга, Ташкент, Узбекистан , O‘quv ishlari bo‘yicha prorektor, DSc, professor, Oziq-ovqat texnologiyasi va muhandisligi xalqaro instituti, Toshkent, O‘zbekiston , Vice-Rector for Academic Affairs, Doctor of Sciences, Professor, International Institute of Food Technology and Engineering, Tashkent, Uzbekistan
https://orcid.org/0000-0002-0614-8263 (unauthenticated)
Maksumova, O.S.
Доктор наук, профессор, Ташкентский химико-технологический институт, Ташкент, Узбекистан , K.f.d., professor, Toshkent kimyo-texnologiya instituti, Toshkent, O‘zbekiston , Doctor of Sciences, Professor, Tashkent Institute of Chemical Technology, Tashkent, Uzbekistan
https://orcid.org/0009-0008-0548-395X (unauthenticated)

Abstract

A gel polymer electrolyte based on plasticized acrylonitrile (AN)-methyl acrylate (MA) copolymers is proposed as a promising solution for efficient sodium-sulfur batteries (Na-SB). In this work, polymer electrolytes with an internal resistance of up to 1 Ohm were developed by optimizing the AN-MA copolymer composition and the amount of liquid electrolyte. These electrolytes significantly reduced the sulfur migration to the surface of sodium electrodes due to the “shuttle” effect, increasing electrochemical stability. Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) were used to image the surface and perform elemental analysis of the copolymer and gel electrolyte. It was shown that the surface flattening (amorphization) occurred with an increase in the liquid electrolyte content of the gel electrolyte. It was found that the presence of excess or deficiency of liquid electrolyte in the gel electrolyte caused an increase in the “shuttle” effect.

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Issue

Vol. 3 No. 2 (2025)

Section

Chemical Technology and Construction
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How to Cite

Khakimov , F. S., Jalolov , J. M., Khamdamova , S. S., & Maksumova , O. S. (2025). SYNTHESIS OF A GEL-LIKE ELECTROLYTE WITH A COPOLYMER THAT REDUCES THE “SHUTTLE” EFFECT OF SODIUM-SULFUR                           BATTERIES. Digital Technologies in Industry, 3(2), 197-203. https://doi.org/10.70769/3030-3214.SRT.3.2.2025.9

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