Flexible gel polymer electrolyte based on ionic liquid EMIMTFSI for rechargeable battery application

Balo, Liton; Shalu, .; Gupta, Himani; Singh, Varun Kumar; Singh, Rajendra Kumar

doi:10.1016/j.electacta.2017.01.177

Cited by 121 publications

(59 citation statements)

References 60 publications

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“…The stable capacity value is seen for the initial 12 cycles and then the cycling performance starts to fade. This might result from the gradual thickening of the electrode/electrolyte interfacial layer as a result of reduction product of electrolyte and/or consumption of electrode materials ,. The coulombic efficiencies at 1 st , 15 th , and 30 th cycle are 88.1 %, 99.1 %, and 99.6 %, respectively.…”

Section: Resultsmentioning

confidence: 99%

Ion Pair Integrated Organic‐Inorganic Hybrid Electrolyte Network for Solid‐State Lithium Ion Batteries

et al. 2018

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A class of organic‐inorganic hybrid electrolyte with ion pair integrated network (X‐POSS‐IL‐LiTFSI) has been prepared by crosslinking of oligomeric octasilsesquioxanes grafted with imidazolium‐based ionic liquids for solid state lithium ion battery applications. X‐POSS‐IL‐LiTFSI is thermally stable and highly amorphous, and shows high ionic conductivities and excellent electrochemical stability. With further immobilization of a small fraction of ionic liquid, the ionic conductivity of X‐POSS‐IL‐LiTFSI has been significantly improved, e. g. 1.4×10−4 S/cm at ambinet temperature, to the level required by the practical battery applications, while maintaining the demensional integity. The coin cells of lithium batteries with the plasticized X‐POSS‐IL‐LiTFSI electrolytes exhibit high specific capacities at both ambient and elevated temperatures.

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Section: Resultsmentioning

confidence: 99%

Ion Pair Integrated Organic‐Inorganic Hybrid Electrolyte Network for Solid‐State Lithium Ion Batteries

et al. 2018

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“…The LSV and the CV curves are shown in Figure 6 and Figure 7, respectively. Figure 6 shows the steady current up to 3 V and after that rapid increase in the current flows which is due to the electrolyte decomposition [50]. The voltage stability window of the SPE containing SN displays improved stability (3.5 V-3.9 V) as compared to polymer salt system (3.…”

Section: Electrochemical Stability Windowmentioning

confidence: 99%

Tailoring the Structural, Morphological, Electrochemical, and Dielectric Properties of Solid Polymer Electrolyte

Arya¹

2018

Preprint

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Abstract:Herein, we present preparation of solid polymer electrolyte (SPE) comprising of PEO, NaPF6 and varying fraction of Succinonitrile (SN) by standard solution cast technique. The morphological features and structural properties were studied by the FESEM, XRD, respectively. FTIR was performed to study the interactions between polymer host, salt, and SN. Impedance spectroscopy, Transference number measurements, LSV and CV were used to examine the electrochemical properties. The complex permittivity/conductivity & modulus were studied to understand the dielectric properties by evaluating the dielectric strength, relaxation time, hopping frequency and dc conductivity. Based on the experimental results an interaction mechanism is presented.

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“…[4] Solid electrolyte-based SIBs show greater safety, high thermal stability, wide electrochemical window and long cycle life. [21][22][23][24][25] Ionic liquid GPEs are composed of ionic liquids, polymers, and sodium salts, where the sodium salts are dissociated in the ionic liquids. [5][6][7][8] Gel-polymer electrolytes (GPEs) are more safe compared with liquid electrolytes by avoiding leakage of electrolytes, and the room-temperature ionic conductivity are 10 À 4 À 10 À 3 S cm À 1 due to the plasticizers.…”

Section: Introductionmentioning

confidence: 99%

“…[20] Ionic liquids have attracted much attention by their excellent properties such as high ionic conductivity, wide electrochemical window, non-flammability, non-volatility, negligible vapor pressure and excellent thermal stability. [21][22][23][24][25] Ionic liquid GPEs are composed of ionic liquids, polymers, and sodium salts, where the sodium salts are dissociated in the ionic liquids. As liquid plasticizers, ionic liquids provide favorable conditions for ion migration in these systems.…”

Section: Introductionmentioning

confidence: 99%

An Ionic Liquid/Poly(vinylidene fluoride‐co‐hexafluoropropylene) Gel‐Polymer Electrolyte with a Compatible Interface for Sodium‐Based Batteries

Xie

Huang

et al. 2019

ChemElectroChem

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Ionic liquid gel-polymer electrolytes (GPEs) have attracted increasing attention, owing to their merits of safety and reliability. However, the high viscosity of ionic liquid requires better transmission channels for the polymer. Exploration of ionic liquid GPEs with high ionic conductivity and excellent transmission channels is a possible strategy to optimize the practicability of sodium-based technology. A flexible GPE with high ionic conductivity and excellent transmission channels is synthesized with poly(vinylidene fluoride-co-hexafluoropropylene) (PVDFÀ HFP) as the base material blended with the waterinsoluble ionic liquid N-methyl-N-butyl piperidine difluorome-thylimide ([PP 14 ][TFSI]) by using a phase-inversion technique. A polydopamine coating is then introduced into the GPE to improve wettability and compatibility. The thermal decomposition temperature of the prepared gel-polymer films is greater than 450°C. Our activated GPE achieves good safety, a wide electrochemical window, and high ionic conductivity. When testing a sodium-ion battery with Prussian blue as the cathode, the batteries show good cycling performance. Our results suggest that the as-prepared GPE can be efficiently and safely used in sodium-ion batteries.[a] Dr. photoelectron spectra (XPS) using PHI Quantera-II scanning XPS microprobe. The contact angle of the membranes were conducted on a JY-82B contact angle apparatus. Electrochemical CharacterizationThe galvanostatic charge-discharge tests were performed on a LAND cycler (Wuhan Kingnuo Electronic Co.) at room temperature. Linear sweep voltammetry, cyclic voltammetry and electrochemical impedance spectroscopy were carried out on a CHI 660e electrochemical workstation (ChenHua Instruments Co.).

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Flexible gel polymer electrolyte based on ionic liquid EMIMTFSI for rechargeable battery application

Cited by 121 publications

References 60 publications

Ion Pair Integrated Organic‐Inorganic Hybrid Electrolyte Network for Solid‐State Lithium Ion Batteries

Ion Pair Integrated Organic‐Inorganic Hybrid Electrolyte Network for Solid‐State Lithium Ion Batteries

Tailoring the Structural, Morphological, Electrochemical, and Dielectric Properties of Solid Polymer Electrolyte

An Ionic Liquid/Poly(vinylidene fluoride‐co‐hexafluoropropylene) Gel‐Polymer Electrolyte with a Compatible Interface for Sodium‐Based Batteries

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