Effect of zwitterionic salt on the electrochemical properties of a solid polymer electrolyte with high temperature stability for lithium ion batteries

Li, Z. H.; Xia, Qingbo; Liu, L.L.; Lei, Gangtie; Xiao, Qizhen; Gao, Deshu; Zhou, Xiao‐Dong

doi:10.1016/j.electacta.2010.09.068

Cited by 64 publications

(28 citation statements)

References 60 publications

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“…Following the first approach, further studies showedv ery promising resultsfor such electrolyte systems by using avariety of ILs and replacing the PEO matrix, for instance, with "inactive" PVdF-HFP, [240][241][242][243][244][245][246][247] poly(urethane acrylate), [248] cross-linked polymers, [248][249][250][251][252] polymer blends, [253,254] or polymerici onic liquids (PILs). [255][256][257][258][259] Concerning the utilization of "inactive" polymerm atrices, such as PVdF-HFP, the enhanced conductivity for ac ontrolled amount of added IL was assigned to the increased number of chargec arriers, as supported by the presence of strong electron-withdrawing functionalg roups,s uch as ÀCÀF( and their high dielectric constant, e = 8.4);t his leads to extendedl ithium salt dissolution, and thus, compensates for decreased ion mobility due to increased viscosity.…”

Section: Gel-polymer Electrolytes (Gpes)mentioning

confidence: 99%

Safer Electrolytes for Lithium‐Ion Batteries: State of the Art and Perspectives

et al. 2015

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Lithium-ion batteries are becoming increasingly important for electrifying the modern transportation system and, thus, hold the promise to enable sustainable mobility in the future. However, their large-scale application is hindered by severe safety concerns when the cells are exposed to mechanical, thermal, or electrical abuse conditions. These safety issues are intrinsically related to their superior energy density, combined with the (present) utilization of highly volatile and flammable organic-solvent-based electrolytes. Herein, state-of-the-art electrolyte systems and potential alternatives are briefly surveyed, with a particular focus on their (inherent) safety characteristics. The challenges, which so far prevent the widespread replacement of organic carbonate-based electrolytes with LiPF6 as the conducting salt, are also reviewed herein. Starting from rather "facile" electrolyte modifications by (partially) replacing the organic solvent or lithium salt and/or the addition of functional electrolyte additives, conceptually new electrolyte systems, including ionic liquids, solvent-free, and/or gelled polymer-based electrolytes, as well as solid-state electrolytes, are also considered. Indeed, the opportunities for designing new electrolytes appear to be almost infinite, which certainly complicates strict classification of such systems and a fundamental understanding of their properties. Nevertheless, these innumerable opportunities also provide a great chance of developing highly functionalized, new electrolyte systems, which may overcome the afore-mentioned safety concerns, while also offering enhanced mechanical, thermal, physicochemical, and electrochemical performance.

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Section: Gel-polymer Electrolytes (Gpes)mentioning

confidence: 99%

Safer Electrolytes for Lithium‐Ion Batteries: State of the Art and Perspectives

et al. 2015

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“…As can be seen from Figure 6, the IR band of AzoIPS located at 1159 cm À1 belongs to the CÀHi n-plane vibrationo fi midazole, and the bands at 1186 and 1043 cm À1 can be ascribed to S=Os tretching vibrations. [16] For LiTFSI, the peaks at 1140 and at 1198 and1 061 cm À1 can be attributed to the CÀSO 2 ÀNb ond and CF 3 symmetric stretching vibration, respectively. [13] For AzoIPS-LiTFSI, these peaks are significantly shifted to 1193, 1137, and 1051 cm À1 ,w hich indicates an electrostatic interaction between AzoIPS andL iTFSI.…”

Section: Resultsmentioning

confidence: 98%

Responsive Self‐Assembly of Supramolecular Hydrogel Based on Zwitterionic Liquid Asymmetric Gemini Guest

Sun

et al. 2018

Chemistry A European J

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A low-molecular-weight supramolecular hydrogel has been fabricated based on host-guest interactions between β-cyclodextrin (β-CD) and an asymmetric gemini zwitterionic liquid (ZIL) containing an azobenzene and bis(trifluoromethanesulfonyl)imide. Reversible sol-gel phase transitions were triggered by light and temperature. The binding stoichiometry, mainly noncovalent interactions in the hydrogel, photo- and thermoresponsive mechanisms, and mode of inclusion in the complex were studied in detail by NMR spectroscopy, UV/Vis spectroscopy, isothermal titration calorimetry, and control experiments. Interestingly, the β-CD in the complex can be photo-manipulated to shuttle along the guest molecule, accompanied by a change in the circular dichroism signals. Reversible switching of the conductivity accompanies the sol-gel phase transition, which demonstrates the stability of the supramolecular hydrogel and its potential application in multi-stimuli-responsive electric sensor materials.

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“…The increased interest in polymerized ionic liquids (PILs) is due to their comparatively high ionic conductivity and good mechanical strength [21,22]. Various polymers such as PEO [23][24][25][26][27][28][29][30][31], homo-and co-polymers of poly(vinylidene fluoride) (PVdF) [32][33][34][35][36][37] and poly(ethylene glycol) dimethyl ether [38] have been used to prepare polymer electrolytes with ionic liquids and have been studied over the last few years. Among them PVdF and its copolimers are important due to their high strength and good stability [39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Application of quaternary polymer electrolyte based on ionic liquid in LiFePO4/Li, Li4Ti5O12/Li and LiFePO4/Li4Ti5O12 batteries

Swiderska‐Mocek

2014

Electrochimica Acta

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Effect of zwitterionic salt on the electrochemical properties of a solid polymer electrolyte with high temperature stability for lithium ion batteries

Cited by 64 publications

References 60 publications

Safer Electrolytes for Lithium‐Ion Batteries: State of the Art and Perspectives

Safer Electrolytes for Lithium‐Ion Batteries: State of the Art and Perspectives

Responsive Self‐Assembly of Supramolecular Hydrogel Based on Zwitterionic Liquid Asymmetric Gemini Guest

Application of quaternary polymer electrolyte based on ionic liquid in LiFePO4/Li, Li4Ti5O12/Li and LiFePO4/Li4Ti5O12 batteries

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