Structurally flexible pyrrolidinium- and morpholinium-based ionic liquid electrolytes

Bhowmick, Sourav; Tatrari, Gaurav; Filippov, Andrei; Johansson, Patrik; Shah, Faiz Ullah

doi:10.1039/d3cp01190a

Cited by 6 publications

(15 citation statements)

References 56 publications

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“…The CV data at 30°C, 60°C, and 90°C depict a decent continuity in the shape and structures of the CV plots, indicating which stability of the device over a wide range of temperatures (Figure 2B‐D). With an increase in the temperature, there is a clear spike in current, depicting a direct relationship between the temperature and ion mobility of the electrolyte 24‐26 . The capacitative performance is adversely affected by the increasing scan rates from 1 to 200 mV s −1 at all the studied temperatures (Tables S2 and S3).…”

Section: Resultsmentioning

confidence: 94%

“…The CV data at different temperatures revealed promising capacitive properties and reversibility of the system. It is also clear that the scan rate substantially impacts the voltammetric behavior of the device, as suggested by the fluctuation of the peak currents and the oxidation and reduction potentials, justifying the stability of the device over a wide temperature range 3,25‐27 …”

Section: Resultsmentioning

confidence: 99%

“…The synthesis and characterization of the [EmMPyrr][DEEP] IL and the TEOP solvent were recently reported in our previous work 25 . The electrolyte was prepared by mixing 50 mol% of [EmMPyrr][DEEP] IL with the TEOP solvent and dried in a vacuum oven at 80°C for 1 week.…”

Section: Methodsmentioning

confidence: 99%

“…The SC was prepared using the commercially available graphite‐coated copper sheets as electrodes and the TSC battery cell (rhd instruments, Germany). The detailed experimental setup of this cell can be found in our previous publications 25,26 . The electrochemical performance of the device was evaluated using the TSC‐battery cell with a cell diameter of 9 mm as shown in Figures S3 and S4 in the supporting information (SI).…”

Section: Methodsmentioning

confidence: 99%

“…In addition, there is an urge to develop safer SCs with high cyclic stability and capacitance operating at high temperatures and a wide voltage range 22‐24 . In this context, ionic liquids (ILs) are the most promising electrolytes due to their nonflammability, high thermal and electrochemical stability, high ionic conductivity, and structural designability 25‐27 . In this context, we have recently reported structurally flexible ILs based on imidazolium, morpholinium, pyrrolidinium cations, and oligoether phosphate‐based anions 25 .…”

Section: Introductionmentioning

confidence: 99%

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Charge storage performance of a structurally flexible hybrid ionic liquid electrolyte

Tatrari,

Bhowmick,

Filippov

et al. 2023

Energy Storage

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The electrochemical and charge storage performance of a fluorine‐free structurally flexible hybrid pyrrolidinium‐based ionic liquid electrolyte (HILE) in a symmetric graphite‐based supercapacitor is thoroughly investigated. The HILE revealed thermal decomposition at above 230°C, a glass transition (Tg) temperature of below −70°C, and ionic conductivity of 0.16 mS cm−1 at 30°C. The chemical and electrochemical properties are investigated using a systematic variable temperature 1H and 31P NMR spectroscopy and diffusometry, cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge‐discharge (GCD). The supercapacitor demonstrated a notable specific capacitance of 186 F g−1 at a scan rate of 1 mV s−1 and a specific capacitance of 122 F g−1 at a current density of 0.5 A g−1. The maximum energy density of 48.8 Wh kg−1, a power density of 450 W kg−1 at a current density of 0.5 A g−1, and a potential window of 4 V were obtained. Altogether, this study demonstrates that the new HILE can be used in symmetric graphite‐based supercapacitors over a wide potential window of 4 V and a temperature range from −20°C to 90°C.

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Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Charge storage performance of a structurally flexible hybrid ionic liquid electrolyte

Tatrari,

Bhowmick,

Filippov

et al. 2023

Energy Storage

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Conducting Polymers–Metal Chalcogenides Hybrid Composite: Current Trends and Future Prospects Toward Supercapacitor Applications

Agarwal,

Tolani,

Sankapal

2024

Energy Tech

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Conducting polymers have grown in popularity as electrode materials in supercapacitors due to their polymeric mechanical structure and outstanding conductivity. Nanostructured conducting polymers, in particular, have been the focus due to unique properties such as higher surface area, shorter diffusion lengths for ion transport, and a high electrochemical nature. Nonetheless, the volumetric expansion of conducting polymer electrodes after long charge–discharge cycles reduces capacitance retention. Metal chalcogenides, on the other hand, are distinguished from other metallic compounds by their distinctive 2D structure, large theoretical capacities, abundant electrochemical active sites, and tunable shape, enabling them as a potential candidature when combined with conducting polymers to produce a composite material taking “material mutualism” to enhance the properties. Hence, the review focuses on recent advancement in the field of creating conducting polymers–metal chalcogenides composite for supercapacitors. It especially covers how nanoarchitecture, composition, and doping affect the electrochemical characteristics of these composites. A brief introduction of several synthesis procedures is also offered, which includes chemical approaches with and without templates or binder additives. Furthermore, noteworthy works on the fabrication of symmetric and asymmetric devices are highlighted.

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Impact of NaCF3SO3 on charge transfer mechanism in gellan gum–based solid polymer electrolytes

Shamshurim,

Tamchek,

Singh

et al. 2024

Ionics

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Structurally flexible pyrrolidinium- and morpholinium-based ionic liquid electrolytes

Abstract: Ion transport measures and details as well as physico-chemical and electrochemical properties are presented for a small set of structurally flexible pyrrolidinium (Pyrr) and morpholinium (Morph) cation-based ionic liquids (ILs),...

Cited by 6 publications

References 56 publications

Charge storage performance of a structurally flexible hybrid ionic liquid electrolyte

Charge storage performance of a structurally flexible hybrid ionic liquid electrolyte

Conducting Polymers–Metal Chalcogenides Hybrid Composite: Current Trends and Future Prospects Toward Supercapacitor Applications

Impact of NaCF3SO3 on charge transfer mechanism in gellan gum–based solid polymer electrolytes

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