Articles with "electrochemical capacitors" as a keyword



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Electrochemical Capacitors with Confined Redox Electrolytes and Porous Electrodes

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Published in 2022 at "Advanced Materials"

DOI: 10.1002/adma.202202380

Abstract: Electrochemical capacitors (ECs), including electrical‐double‐layer capacitors and pseudocapacitors, feature high power densities but low energy densities. To improve the energy densities of ECs, redox electrolyte‐enhanced ECs (R‐ECs) or supercapbatteries are designed through employing confined soluble… read more here.

Keywords: energy densities; energy; electrochemical capacitors; redox electrolytes ... See more keywords
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Determination of accurate electrode contribution during voltammetry scan of electrochemical capacitors

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Published in 2018 at "Journal of Solid State Electrochemistry"

DOI: 10.1007/s10008-018-3924-0

Abstract: This paper introduces the method which allows determining the accurate electrode contributions during cyclic voltammetry (CV) scan of electrochemical capacitor. As a result of theoretical considerations, a calculation method which reveals voltammetry response of both… read more here.

Keywords: electrochemical capacitors; accurate electrode; electrode; scan electrochemical ... See more keywords
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The Effects of Self-Discharge on the Performance of Asymmetric/Hybrid Electrochemical Capacitors with Redox-Active Electrolytes: Insights from Modeling and Simulation

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Published in 2017 at "Journal of Electronic Materials"

DOI: 10.1007/s11664-017-5796-y

Abstract: Self-discharge effects on the performance of an asymmetric electrochemical capacitors (ECs) was studied by incorporating a combination of different applicable self-discharge mechanisms into the capacitors mass transfer and charge conservation equations during charging and discharging.… read more here.

Keywords: performance asymmetric; self; electrochemical capacitors; self discharge ... See more keywords
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Nickel sulfide-based energy storage materials for high-performance electrochemical capacitors

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Published in 2020 at "Rare Metals"

DOI: 10.1007/s12598-020-01470-w

Abstract: Supercapacitors are favorable energy storage devices in the field of emerging energy technologies with high power density, excellent cycle stability and environmental benignity. The performance of supercapacitors is definitively influenced by the electrode materials. Nickel… read more here.

Keywords: energy; electrochemical capacitors; energy storage; nickel sulfides ... See more keywords
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Recent research of core–shell structured composites with NiCo2O4 as scaffolds for electrochemical capacitors

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Published in 2020 at "Chemical Engineering Journal"

DOI: 10.1016/j.cej.2020.124747

Abstract: Abstract With the rapid development of novel electrodes towards electrochemical capacitors, new materials with reasonable compositions and unique structures are intensively studied in order to achieve a high energy density. NiCo2O4 has been considered as… read more here.

Keywords: shell structured; core shell; electrochemical capacitors; structured composites ... See more keywords
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Redox active electrolytes in carbon/carbon electrochemical capacitors

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Published in 2018 at "Current Opinion in Electrochemistry"

DOI: 10.1016/j.coelec.2018.05.006

Abstract: Summary The application of redox-active electrolytes to realize carbon/carbon electrochemical capacitors has created a great opportunity to enhance the mediocre energy of these devices. Taking advantage of the faradic current from the redox transformation of… read more here.

Keywords: carbon; electrochemical capacitors; carbon carbon; active electrolytes ... See more keywords
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Modeling of electrochemical capacitors under dynamical cycling

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Published in 2019 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2018.11.053

Abstract: Abstract The electric responses of electrochemical capacitors produced with electrodes build up of reduced graphene oxide (rGO) deposited on Fluorine-doped tin oxide (FTO) coated glass have been experimentally investigated by cyclic voltammetry measurements. According to… read more here.

Keywords: capacitor; electrochemical capacitors; capacitors dynamical; curve ... See more keywords
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Explanation of anomalous rate capability enhancement by manganese oxide incorporation in carbon nanofiber electrodes for electrochemical capacitors

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Published in 2020 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2020.135921

Abstract: Abstract Electrochemical capacitors (ECs) can provide ultra-long cycle life and ultra-fast energy delivery, characteristics which most battery technologies lack. Making composites out of carbon and pseudocapacitive materials is a popular strategy directed on narrowing the… read more here.

Keywords: rate capability; carbon nano; electrochemical capacitors; carbon ... See more keywords
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Electropolymerized poly(3-methylthiophene) onto high density vertically aligned carbon nanotubes directly grown on aluminum substrate: Application to electrochemical capacitors

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Published in 2020 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2020.136377

Abstract: Abstract Potentiostatic pulsed deposition of poly(3-methylthiophene) (P3MT) is carried out on vertically aligned carbon nanotubes directly grown on aluminum foil (VACNT/Al) in a mixture of ionic liquid in acetonitrile (25/75 v/v) as electrolyte to prepare… read more here.

Keywords: electrochemical capacitors; carbon nanotubes; vertically aligned; aligned carbon ... See more keywords
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Suppressing early capacitance fade of electrochemical capacitors with water-in-salt electrolytes

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Published in 2021 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2021.137854

Abstract: Abstract The use of water-in-salt electrolytes (WiSEs) in electrochemical capacitors is an interesting alternative to state-of-the-art electrolytes based on organic solvents. However, making use of their wide electrochemical stability in electrochemical capacitors has been challenging,… read more here.

Keywords: electrochemical capacitors; water; salt electrolytes; water salt ... See more keywords
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From wood to thin porous carbon membrane: Ancient materials for modern ultrafast electrochemical capacitors in alternating current line filtering

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Published in 2021 at "Energy Storage Materials"

DOI: 10.1016/j.ensm.2020.11.007

Abstract: Abstract Ultrafast electrochemical capacitors with alternating current line filtering function have attracted growing attention owing to their potential to replace the state-of-the-art bulky aluminum electrolyte capacitors. In spite of rapid advance recently involving nanomaterials as… read more here.

Keywords: ultrafast electrochemical; carbon; line filtering; carbon membrane ... See more keywords