Effects of Li Salt and Additive Content on the Electrochemical Performance of [C4C1mim]-Based Ionic Liquid Electrolytes

AppliedChem, Год журнала: 2025, Номер 5(1), С. 6 - 6

Опубликована: Март 6, 2025

Ionic liquids based on imidazolium cations have attracted attention due to their high safety and exceptional ionic conductivity. However, imidazole-based exhibit poor electrochemical stability the strong reactivity of hydrogen atoms at C-2 position imidazole cations. In this work, an liquid 1-butyl-2,3-dimethylimidazolium bis(trifluoromethanesulfonyl)imide ([C4C1mim][TFSA]), characterized by a methyl-substituted butyl chain, was investigated in various Li+ environments created different lithium salt concentrations fluoroethylene carbonate (FEC) additives. Both optimal addition reasonable FEC enable improvement conductivity 3.32 mS cm−1 25 °C maximum window 5.21 V. The electrolyte Li[TFSA]-[C4C1mim][TFSA] molar ratio 2:8 with 5 wt% demonstrates excellent thermal stability. corresponding Li/LiFePO4 cell exhibits mitigated polarization growth (increasing from 0.12 V 0.25 over 10 cycles) initial discharge capacity 169.3 mAh g−1.

Язык: Английский

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Introduction of a novel Brønsted acidic ionic liquid as a recyclable catalyst in the green production of dihydropyrano-pyrazoles

Research on Chemical Intermediates, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Язык: Английский

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Adjustable Brønsted type ionic liquid catalyst based on porous cellulose microspheres for green and efficient catalytic system in transesterification

Fuel, Год журнала: 2025, Номер 394, С. 135190 - 135190

Опубликована: Март 25, 2025

Язык: Английский

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The ion-ion correlations in organic ionic plastic crystal

Energy Materials, Год журнала: 2025, Номер 5(7)

Опубликована: Март 28, 2025

Organic ionic plastic crystals (OIPCs) are emerging as promising electrolyte materials for solid-state batteries. However, despite the fast diffusion, OIPCs exhibit relatively low DC conductivity in solid phases caused by strong ion-ion correlations that suppress charge transport. To understand origin of this suppression, we performed a study ion dynamics OIPC 1-Ethyl-1-methylpyrrolidinium bis (trifluoromethyl sulfonyl) imide [P12][TFSI] utilizing dielectric spectroscopy, light scattering, and Nuclear Magnetic Resonance diffusometry. Comparison results obtained with published earlier on an completely different structure (Diethyl(methyl)(isobutyl)phosphonium Hexafluorophosphate [P1,2,2,4][PF6]) revealed similarities both systems. Unlike conductivity, which may drop more than ten times between melted phases, diffusion anions cations remains high does not show changes at phase transition. The spectra broad frequency range demonstrate unusual shapes additional step separating local motions from suppressed long-range controlling conductivity. We suggested can jump only specific sites defined crystalline structure. These constraints lead to cation-cation anion-anion strongly suppressing

Язык: Английский

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Ionic Liquid-Assisted Approaches in the Synthesis of Nitrogen-Containing Heterocycles: A Focus on 3- to 6-Membered Rings

Journal of Ionic Liquids, Год журнала: 2025, Номер unknown, С. 100146 - 100146

Опубликована: Март 1, 2025

Язык: Английский

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Effect of the nature of substituents in the imidazolium cation on the properties of monocationic ionic liquids

Russian Chemical Bulletin, Год журнала: 2025, Номер 74(2), С. 387 - 400

Опубликована: Фев. 1, 2025

Язык: Английский

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Solvate ionic liquids: past, present and future

Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Solvate ionic liquids (SILs) are modular and tuneable, enabling their utilisation in diverse applications spanning energy storage, electrodeposition, advanced synthesis.

Язык: Английский

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CO2-switchable self-healing of ionic liquids-based hydrogels

Journal of Colloid and Interface Science, Год журнала: 2025, Номер unknown, С. 137594 - 137594

Опубликована: Апрель 1, 2025

Язык: Английский

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Sustainable Manufacturing of Lightweight Hybrid Nanocomposites for Electric Vehicle Battery Enclosures

Polymers, Год журнала: 2025, Номер 17(8), С. 1056 - 1056

Опубликована: Апрель 14, 2025

Nanocomposite laminates containing carbon fibers, epoxy, and multiwalled nanotubes were fabricated using a vacuum bag process. Ecofriendly ionic liquid (5 wt%)-treated (pristine nickel-coated) added to the epoxy independently, in amounts ranging from 1 wt% 3 wt%, order tailor mechanical, electrical, thermal performance of manufactured fiber composite laminates. These nanocomposite later characterized through flexural testing, dynamic mechanical analysis, impedance spectroscopy, conductivity tests, FTIR spectroscopy evaluate their suitability for battery pack applications. The findings showed that both types exhibited multifaceted effects on properties bulk hybrid For instance, strength composites 3.0 liquid-treated pristine reached 802.8 MPa, modulus was 88.21 GPa, storage 18.2 while loss peaked at 1.76 GPa. ranged 0.38869 W/(m · K) 0.69772 K), electrical resistance decreased significantly with addition MWCNTs, reaching minimum 29.89 Ω CFRPIP-1.5 wt%. structural nanocomposites higher than Ni-coated nanotubes, although latter found possess better functional performance.

Язык: Английский

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Ionic liquids confined in carbon nanotubes: multiphase evolution driven by electron beam and temperature variations

International Journal of Heat and Mass Transfer, Год журнала: 2025, Номер 247, С. 127111 - 127111

Опубликована: Апрель 18, 2025

Язык: Английский

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