Structures of polymer electrolytes based on polyester diacrylate: an NMR study

Marinin, A. A.; Khatmullina, K. G.; Volkov, V. I.; Yarmolenko, O. V.; Zabrodin, V. A.

doi:10.1007/s11172-011-0173-0

Cited by 5 publications

(10 citation statements)

References 10 publications

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“…1 has the best thermal and chemical stability [25]. In addition, recent NMR studies [24,26] and quantum chemical calculations joined with IR spectroscopy [27] of the electrolyte system allowed more accurate interpreting of results of the studies in the nanocomposite polymer gel electrolytes.…”

Section: Resultsmentioning

confidence: 99%

Nanocomposite network polymer gel-electrolytes: TiO2- and Li2TiO3-nanoparticle effects on their structure and properties

Yarmolenko

Yudina

Marinin³

et al. 2015

Russ J Electrochem

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The effects of TiO 2 (~60 nm) and Li 2 TiO 3 (~20 nm) nanoparticles on the conductivity, struc ture, and mechanical strength of (polyether diacrylate-LiClO 4 -ethylene carbonate) based polymer gel electrolytes are studied. When the gel electrolytes are synthesized with the TiO 2 and Li 2 TiO 3 nanoparticles ultrasonic pretreatment, both polyether diacrylate and ethylene carbonate are partially decomposed in the solution; this is evidenced by the appearance of -CH 3 group signal at 1.2 ppm in 1 H NMR spectra, as well, as by the peak area analysis. The gel electrolyte matrix partial decomposition was shown not to affect the net work polymer electrolyte conductivity and mechanical properties. Analysis of NMR spectra for 7 Li nuclei, taken with nanocomposite polymer electrolyte rotating under magic angle, revealed two Li + ion environ ments: with the nanoparticles and the polymer matrix. Upon the adding of TiO 2 nanoparticles (10 mass %) the polymer electrolyte conductivity increased by order of magnitude (up to 1.8 × 10 -3 S/cm at 20°C); upon the adding of Li 2 TiO 3 , by a factor of 2 only (up to 7.0 × 10 -4 S/cm at 20°C). The electrolyte solution ultra sonic treatment increased the films' mechanical strength; the larger effect occurred with Li 2 TiO 3 (the mod ulus of elasticity is 15 MPa).

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Section: Resultsmentioning

confidence: 99%

Nanocomposite network polymer gel-electrolytes: TiO2- and Li2TiO3-nanoparticle effects on their structure and properties

Yarmolenko

Yudina

Marinin³

et al. 2015

Russ J Electrochem

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“…The highest degree of retention of the liquid phase is observed in the mesh matrices formed by chemical crosslinking (PEG-DA, PEDA). PEDA [53,54] is a product of the anionic polymerization of 2-hydroxyethyl acrylate and 4,4 -dicyclohexylmethane diisocyanate. Polar NHCO groups, when introduced into the PEDA chains, favor stronger retention of a polar electrolyte and higher stability of a polymer gel electrolyte.…”

Section: Polymer Gel Electrolytesmentioning

confidence: 99%

“…The main direction of investigations is lithium cation surroundings, local and macroscopic mobilities of Li + and F − -containing fragments, and electrolyte composition-ion transport correlations. Modern and complicated NMR techniques are employed, especially solid-state high resolution magic angle spinning (MAS) NMR, pulsed-field gradient NMR, and NMR spin relaxation [13,29,[32][33][34]37,39,40,42,47,[49][50][51][52][53][54][56][57][58][59][60][61]65,72,73,76,77,80,92,.…”

Section: Nmr Study Of Polymer Electrolytesmentioning

confidence: 99%

“…The results of the NMR study of gel electrolytes are given in [39,40,47,49,50,53,54,56,57,80,119,122,[124][125][126]130].…”

Section: Nmr In Polymer Gel Electrolytesmentioning

confidence: 99%

“…Therefore, the medium component is due to the solvation of Li + by EC molecules, while the fast one corresponds to the EC molecules connected to PEDA. These two types of molecules are exchanging, and the exchange time is about several hundreds of ms [54]. A decrease in the solvent concentration is accompanied by broadening and weakening of the line of methylene protons of EC (4.82 ppm).…”

Section: Pge Compositionmentioning

confidence: 99%

See 2 more Smart Citations

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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Recent progress in NMR spectroscopy of polymer electrolytes for lithium batteries

Abbrent

Greenbaum

2013

Current Opinion in Colloid & Interface Science

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Structures of polymer electrolytes based on polyester diacrylate: an NMR study

Cited by 5 publications

References 10 publications

Nanocomposite network polymer gel-electrolytes: TiO2- and Li2TiO3-nanoparticle effects on their structure and properties

Nanocomposite network polymer gel-electrolytes: TiO2- and Li2TiO3-nanoparticle effects on their structure and properties

Polymer Electrolytes for Lithium-Ion Batteries Studied by NMR Techniques

Recent progress in NMR spectroscopy of polymer electrolytes for lithium batteries

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