Impact of the aqueous pyrrolidinium hydrogen sulfate electrolyte formulation on transport properties and electrochemical performances for polyaniline-based supercapacitor

Al-Zohbi, Fatima; Jacquemin, Johan; Ghamouss, Fouad; Schmaltz, Bruno; Abarbri, Mohamed; Cherry, Khalil; Tabcheh, Mohamad Fadel; Tran‐Van, François

doi:10.1016/j.jpowsour.2019.05.018

Cited by 14 publications

(24 citation statements)

References 54 publications

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“…A PIL is a polyelectrolyte that is composed of a polymer skeleton and an IL species in repeating units [ 151 ]. The PILs (from oligomers to high-molecular-weight polymers) are affected by the IL properties, including thermal stability, negligible vapor pressure, non-flammability, relatively high ionic conductivity, and broad electrochemical stability window [ 151 , 152 , 153 , 154 ]. The structures and properties of PILs have been used for various applications such as electrolytes, electrochemical devices, electrochemical catalyst supports, and porous polymer structures.…”

Section: Ionic Liquids For Supercapacitor Electrolytesmentioning

confidence: 99%

Ionic Liquid Electrolytes for Electrochemical Energy Storage Devices

et al. 2021

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For decades, improvements in electrolytes and electrodes have driven the development of electrochemical energy storage devices. Generally, electrodes and electrolytes should not be developed separately due to the importance of the interaction at their interface. The energy storage ability and safety of energy storage devices are in fact determined by the arrangement of ions and electrons between the electrode and the electrolyte. In this paper, the physicochemical and electrochemical properties of lithium-ion batteries and supercapacitors using ionic liquids (ILs) as an electrolyte are reviewed. Additionally, the energy storage device ILs developed over the last decade are introduced.

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Section: Ionic Liquids For Supercapacitor Electrolytesmentioning

confidence: 99%

Ionic Liquid Electrolytes for Electrochemical Energy Storage Devices

et al. 2021

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“…The line nearly parallel to the imaginary axis reflects the ideal capacitive behavior of the devices. The impedance arc associated with the charge transfer resistance ( R ct ) exhibits a value of less than 1 Ω, indicating a desirable kinetic process even better than many liquid electrolytes-based devices ( Guo et al., 2016 ; Al-Zohbi et al., 2019 ). At high frequencies, the intercept on the real axis represents the ohmic resistance ( R s ) of SC-2.5, SC-5.0, and SC-10 being 11.2, 11.5, and 11.7 Ω, respectively, which assures the good ionic conductivity of PAA-PAH/LiCl electrolyte once again.…”

Section: Resultsmentioning

confidence: 99%

A Regenerable Hydrogel Electrolyte for Flexible Supercapacitors

Zhou

Yang

et al. 2020

iScience

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Summary Easy regenerability of core components such as electrode and electrolyte is highly required in advanced electrochemical devices. This work reports a reliable, regenerable, and stretchable hydrogel electrolyte based on ionic bonds between polyacrylic acid (PAA) and polyallylamine (PAH). PAA-PAH electrolyte (1M LiCl addition) exhibits high ionic conductivity (0.050 S·cm-1) and excellent mechanical property (fracture strain of 1,688%). Notably, the electrolyte can be regenerated to any desired shape under mild conditions and remains 96% and 90% of the initial ionic conductivity after the first and second regeneration, respectively. PAA-PAH/LiCl-based supercapacitor exhibits nearly 100% capacitance retention upon rolling, stretching, and 5,000 charge-discharge cycles, whereas the regenerated device holds 97.6% capacitance of the initial device and 90.9% after 5,000 cycles. This low-cost, high-efficiency, and regenerable hydrogel electrolyte reveals very promising use in solid-state/flexible supercapacitors and possibly becomes a standard commercial hydrogel electrolyte for sustainable electrochemical energy devices.

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“…[Pyrr][HSO 4 ] was prepared by an equimolar acid-base reaction between pyrrolidine and sulfuric acid, as reported by our group previously [ 54 , 55 ]. Pyrrolidine was introduced in a three-necked round-bottomed flask immerged in an ice bath and equipped with a reflux condenser, a dropping funnel, and a thermometer.…”

Section: Methodsmentioning

confidence: 99%

“…PANI/PIL and PANI/HSO 4 was also prepared using the same procedure in the absence of GO, with and without [Pyrr][HSO 4 ] in the polymerization medium, respectively. The conventional PANI (PANI/HCl) was also synthesized by the polymerization of aniline in HCl 1 mol·L −1 , as described in [ 54 ]. The yield of prepared materials was 91–95%.…”

Section: Methodsmentioning

confidence: 99%

Enhanced Storage Performance of PANI and PANI/Graphene Composites Synthesized in Protic Ionic Liquids

et al. 2021

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Polyaniline (PANI) was synthesized using oxidative polymerization in a mixture of water with pyrrolidinium hydrogen sulfate [Pyrr][HSO4], which is a protic ionic liquid PIL. The obtained PANI (PANI/PIL) was compared with conventional PANI (PANI/HCl and PANI/HSO4) in terms of their morphological, structural, and storage properties. The results demonstrate that the addition of this PIL to a polymerization medium leads to a fiber-like morphology, instead of a spherical-like morphology, of PANI/HSO4 or an agglomerated morphology of PANI/HCl. In addition, PAN/PIL exhibits an improvement of the charge transfer kinetic and storage capability in H2SO4 1 mol·L−1, compared to PANI/HCl. The combination of PANI/PIL and graphene oxide (GO), on the other hand, was investigated by optimizing the PANI/GO weight ratio to achieve the nanocomposite material with the best performance. Our results indicate that the PANI/PIL/GO containing 16 wt% of GO material exhibits a high performance and stability (223 F·g−1 at 10 A·g−1 in H2SO4 1 mol·L−1, 4.9 Wh·Kg−1, and 3700 W·Kg−1 @ 10 A·g−1). The obtained results highlight the beneficial role of PIL in building PANI and PANI/GO nanocomposites with excellent performances for supercapacitor applications.

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Impact of the aqueous pyrrolidinium hydrogen sulfate electrolyte formulation on transport properties and electrochemical performances for polyaniline-based supercapacitor

Cited by 14 publications

References 54 publications

Ionic Liquid Electrolytes for Electrochemical Energy Storage Devices

Ionic Liquid Electrolytes for Electrochemical Energy Storage Devices

A Regenerable Hydrogel Electrolyte for Flexible Supercapacitors

Enhanced Storage Performance of PANI and PANI/Graphene Composites Synthesized in Protic Ionic Liquids

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