Structure of LiBF4 Solvate Complexes in Ethylene Carbonate, Based on High-Resolution NMR and Quantum-Chemical Data

Tulibaeva, G. Z.; Shestakov, Alexander F.; Volkov, V. I.; Yarmolenko, O. V.

doi:10.1134/s0036024418040313

Cited by 9 publications

(12 citation statements)

References 42 publications

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“…Some recent NMR data in liquid electrolytes are found in [42,95,98,100,102,120,121]. NMR techniques are used to study ion transport in liquid electrolytes and assess the composition of the solvate environment of ions.…”

Section: Nmr Of Liquid Electrolytesmentioning

confidence: 99%

“…Solutions of LiBF 4 and LiClO 4 in ethylene carbonate (EC) were studied by highresolution 1 H, 7 Li, 11 B, 13 C, 17 O, 35 Cl NMR spectroscopy as model systems [120,121].…”

Section: Nmr Of Liquid Electrolytesmentioning

confidence: 99%

“…Figure 5. Experimental 1 H, 7 Li, 19 F, 13 C, 17 O, and 11 B NMR spectra of a 0.66 molality solution of LiBF 4 in ethylene carbonate [121].…”

Section: Figurementioning

confidence: 99%

“…Some examples of the complex structure are shown in Figures 6 and 7. An analysis of the nuclear chemical shift dependences on the concentration made it possible to calculate the degree of dissociation for LiBF4 in EC [121]. At a low concentra- The quantum-chemical calculations of nuclear chemical shifts were performed.…”

Section: Figurementioning

confidence: 99%

“…At a low concentration, Li + ions are surrounded by the solvate shell only and isolated. Ion solvate-separated and contact ion pairs are formed when the concentration increases [121]. An analysis of the nuclear chemical shift dependences on the concentration made it possible to calculate the degree of dissociation for LiBF 4 in EC [121].…”

Section: Figurementioning

confidence: 99%

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Polymer Electrolytes for Lithium-Ion Batteries Studied by NMR Techniques

et al. 2022

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This review is devoted to different types of novel polymer electrolytes for lithium power sources developed during the last decade. In the first part, the compositions and conductivity of various polymer electrolytes are considered. The second part contains NMR applications to the ion transport mechanism. Polymer electrolytes prevail over liquid electrolytes because of their exploitation safety and wider working temperature ranges. The gel electrolytes are mainly attractive. The systems based on polyethylene oxide, poly(vinylidene fluoride-co-hexafluoropropylene), poly(ethylene glycol) diacrylate, etc., modified by nanoparticle (TiO2, SiO2, etc.) additives and ionic liquids are considered in detail. NMR techniques such as high-resolution NMR, solid-state NMR, magic angle spinning (MAS) NMR, NMR relaxation, and pulsed-field gradient NMR applications are discussed. 1H, 7Li, and 19F NMR methods applied to polymer electrolytes are considered. Primary attention is given to the revelation of the ion transport mechanism. A nanochannel structure, compositions of ion complexes, and mobilities of cations and anions studied by NMR, quantum-chemical, and ionic conductivity methods are discussed.

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Section: Nmr Of Liquid Electrolytesmentioning

confidence: 99%

“…Solutions of LiBF 4 and LiClO 4 in ethylene carbonate (EC) were studied by highresolution 1 H, 7 Li, 11 B, 13 C, 17 O, 35 Cl NMR spectroscopy as model systems [120,121].…”

Section: Nmr Of Liquid Electrolytesmentioning

confidence: 99%

“…Figure 5. Experimental 1 H, 7 Li, 19 F, 13 C, 17 O, and 11 B NMR spectra of a 0.66 molality solution of LiBF 4 in ethylene carbonate [121].…”

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

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