N. A. Slesarenko, A. V. Chernyak, V. I. Volkov, K. G. Khatmullina, A. V. Yudina, G. Z. Tulibaeva, A. A. Slesarenko, G. R. Baymuratova, A. F. Shestakov, O. V. Yarmolenko, “The role of diglyme and tetraglyme in the formation of ion transport pathways in gel electrolytes based on polyethylene glycol diacrylate”, Mendeleev Commun., 2025, Volume 35, Issue 6,Pages <nobr>746

Communications

The role of diglyme and tetraglyme in the formation of ion transport pathways in gel electrolytes based on polyethylene glycol diacrylate

N. A. Slesarenko^a, A. V. Chernyak^ab, V. I. Volkov^a, K. G. Khatmullina^ac, A. V. Yudina^a, G. Z. Tulibaeva^a, A. A. Slesarenko^a, G. R. Baymuratova^a, A. F. Shestakov^ad, O. V. Yarmolenko^a

^a Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation
^b Yu. A. Osipyan Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation
^c National Research University ‘Moscow Power Engineering Institute’, 111250 Moscow, Russian Federation
^d Department of Fundamental Physical and Chemical Engineering, M. V. Lomonosov Moscow State University, 119991 Moscow, Russian Federation

Abstract: The methods of ⁷Li spin relaxation and pulsed field gradient NMR were used to reveal the features of local transport of Li⁺ cations in two polymer gel electrolytes containing an ionic liquid, the salt LiBF₄ and a solvent, diglyme (G2) or tetraglyme (G4). It was found that the macroscopic mass transfer of Li⁺ cations is affected by their solvate environment from both glyme solvents and the polymer matrix. In the presence of G4, a denser three-dimensional network is formed, hindering the transport of all ions.

Keywords: ⁷Li spin relaxation, PFG NMR, LiBF₄, diglyme, tetraglyme, electrochemical impedance, lithium anode, conductivity, diffusion coefficient.

Received: 04.04.2025
Accepted: 29.05.2025

Language: English

DOI: 10.71267/mencom.7792

	*Supplementary materials:*
		Supplementary_data_1.pdf	1.3 Mb