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Effect of Composition of Low-Molecular-Weight Plasticizers on the Properties of Gel Polymer Electrolytes for Lithium Metal Batteries Based on Composite Membrane Nafion and Sulfonated Zirconia
Membranes and Membrane Technologies. 2025. Vol. 7. No. 2. P. 112–124.
Modern studies in the field of lithium metal batteries focus on the development of safe and stable electrolytes with high ionic conductivity and electrochemical stability. In this context, promising materials are gel polymer electrolytes based on perfluorosulfonic acid cation-exchange membranes modified with inorganic fillers and solvated with aprotic solvents. This study addresses Nafion® composite membranes containing surface-sulfonated zirconia (sZrO2) and solvated with binary mixtures of ethylene carbonate (EC) with dimethylacetamide (DMAc), dimethylformamide (DMF), and dimethyl sulfoxide (DMSO) at a 1 : 1 ratio by volume. The presented systems demonstrate the dependence of ionic conductivity on the nature of the solvent, following the series: EC–DMAc > EC–DMF > EC–DMSO, with the maximum conductivity (2.2 mS/cm at 25°C) being achieved for the Nafion@sZrO2–EC–DMAc composition. The resulting electrolytes are electrochemically stable up to 4.2 V (vs. to Li+/Li), which makes them compatible with cathode materials such as LiFePO4 (LFP). However, DMSO slowly interacts with lithium metal to form a low-conductivity SEI layer, whereas EC–DMAc and EC–DMF systems provide stable operation of Li|Li cells for >1000 h at a current density of 0.1 mA/cm2. Cyclic tests of Li|LFP cells with Nafion@sZrO2–EC–DMAc and Nafion@sZrO2–EC–DMF electrolytes show an initial discharge capacity of ∼155 mA h/g (0.1C) and high stability—capacity loss after 50 cycles at 0.5C is 4.7 and 2.0%, respectively. The obtained results confirm the potential of using Nafion®-based composite gel polymer electrolytes solvated with amide solvents in new generation lithium metal batteries.
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English
Бондаренко Г.Г., Фишер М. Р., Кристя В. И., Известия РАН. Серия физическая 2026 Т. 90 № 4 С. 867–874
Сформулирована модель катодного слоя тлеющего газового разряда при наличии на
части рабочей поверхности катода тонкой диэлектрической пленки. Показано, что переход тлеющего разряда в дуговой разряд, сопровождающийся значительным увеличением плотности разрядного тока и уменьшением катодного падения напряжения, происходит наиболее быстро, если
пленка занимает примерно половину поверхности катода. ...
Added: September 4, 2026
Budkov Y., Journal of Chemical Physics 2026 Vol. 165 No. 9 Article 094902
We derive the stress tensor of a flexible polymer solution within the Gaussian-chain self-consistent field theory (SCFT) without invoking the ground-state dominance (GSD) approximation. Starting from a covariant formulation of the single-chain partition function in a background metric, we obtain the symmetric stress tensor expressed through the full Edwards propagators. The result contains the local ...
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Four new complexes [Ln(pfaa)3(H2O)2]n (Ln = Eu (1), Tb (2)) and [Ln2Cd2(pfaa)10 (phen)2(EtOH)2]·2MeCN (Ln = Eu (3), Tb (4), phen = 1,10-phenanthroline) based on pentaphorphenylacetic acid (Hpfaa) have been prepared and completely investigated. The structures of compounds 1 and 3 were studied by single crystal X-ray diffraction analysis: the isostructural complexes 1 and 2 represent ...
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of a thin insulating film on the cathode surface. Dependences of the discharge characteristics on the
mixture temperature are calculated in the range of its variation, in which a noticeable contribution to ionization
of the working gas is ...
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containing surface-sulfonated nanoparticles of aluminum oxide, cerium (IV) oxide, and titanium oxide (sAl2O3,
sCeO2, and sTiO2, respectively) were prepared by casting from a dispersion in N,N-dimethylformamide and
plasticized with a 1,3-dioxolane/1,2-dimethoxyethane mixture. The influence of the filler nature on ionic conductivity,
solvent uptake, activation energy, lithium ...
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number of pulses N from 1 to 8 in vacuum) on the structure and microhardness of the surface of ...
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Added: June 29, 2026
Perfluorosulfonic acid polymer membrane with increased chemical stability for hydrogen-air fuel cell
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One of the key tasks of hydrogen energy development is to obtain chemically stable proton exchange polymer membranes with high proton conductivity. This article presents the results on the investigation of the stabilization of proton-conducting membranes with a Nafion®-type structure using modification by fluorine. The membranes examined in this study exhibited high thermal stability and ...
Added: August 26, 2025
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capable of generating protons into pores is an efficient approach for developing a new type of material
with improved ionic conductivity. Herein, the synthesis, characterization and proton conductivity of a novel
electroneutral MOF based on palladium(II) meso-tetrakis(4-(phosphonatophenyl))porphyrinate, IPCE-1Pd, are
reported. The exposure of the obtained framework to imidazole ...
Added: January 21, 2025
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Added: November 5, 2024
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Gel-polymer electrolytes based on perfluorinated cation-exchange membranes are promising electrolytes for lithium metal batteries due to the strength and chemical stability of the fluorinated matrix and high values of ionic conductivity and cation transference numbers, which contribute to the suppression of dendrite formation. The present work compares the main characteristics of polymer electrolytes based on ...
Added: June 20, 2024
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The use of cation-exchange membranes as electrolytes for lithium metal batteries can prevent the formation of lithium dendrites during extended cycling and guarantee safe battery operation. In our study, the Nafion-212 membrane in lithium form solvated by a mixture of ethylene carbonate and propylene carbonate (EC-PC) was used as an electrolyte in a lithium metal ...
Added: January 25, 2024
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All-solid-state lithium batteries are a promising alternative to commercially available
lithium-ion batteries due to their ability to achieve high energy density, safety, and compactness. Electrolytes
are key components of all-solid-state batteries, as they are crucial in determining the batteries’
efficiency. Herein, the structure of LiM2(PO4)3 (M = Ti, Ge, Zr) and lithium-ion migration mechanisms
are introduced as well as ...
Added: January 23, 2024
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The development of accessible express methods to determine markers of viral diseases in saliva is currently an actual problem. Novel cross-sensitive sensors based on Donnan potential with bio-comparable perfluorosulfonic acid membranes for the determination of salivary viral markers (N-acetyl-L-methionine, L-carnitine, and L-lysine) were proposed. Membranes were formed by casting from dispersions of Nafion or Aquivion in N-methyl-2-pyrollidone or ...
Added: January 23, 2024
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Added: October 5, 2023
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owing to their ability to reach high energy densities. The main problem limiting their commercial
application is the formation of dendrites, which significantly reduces their durability and renders
the batteries unsafe. In the present work, we used a single-ion conducting gel polymer electrolyte
based on a ...
Added: November 28, 2022