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Abstract <p>The effect has been studied of chelate complexes of lithium with solvents diglyme (G2) and tetraglyme (G4) on the thermal stability and conductive properties of nanocomposite polymer electrolytes based on polyethylene glycol diacrylate (PEGDA), LiBF<sub>4</sub> salt, ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF<sub>4</sub>), and TiO<sub>2</sub> (Aeroxide P25). The resource tests of prototype of Li/PE/LiFePO<sub>4</sub> batteries were carried out, which showed that the best cycling stability parameters were in a cell with an electrolyte based on PEGDA/LiBF<sub>4</sub>/EMIBF<sub>4</sub>/G4 and admixed 2 wt % TiO<sub>2</sub>.</p>

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Properties of Gel Polymer Electrolytes with Added Glyme Solvents, Ionic Liquid, and TiO2 Nanoparticles

  • 期刊论文

  • 发表日期：

    2025年11月19日

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  • A. V. Yudina,
  • K. G. Khatmullina,
  • G. R. Baymuratova,
  • N. A. Slesarenko,
  • D. A. Chernyaev,
  • O. V. Yarmolenko

摘要

Abstract

The effect has been studied of chelate complexes of lithium with solvents diglyme (G2) and tetraglyme (G4) on the thermal stability and conductive properties of nanocomposite polymer electrolytes based on polyethylene glycol diacrylate (PEGDA), LiBF4 salt, ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4), and TiO2 (Aeroxide P25). The resource tests of prototype of Li/PE/LiFePO4 batteries were carried out, which showed that the best cycling stability parameters were in a cell with an electrolyte based on PEGDA/LiBF4/EMIBF4/G4 and admixed 2 wt % TiO2.