Effect of electrode shape on the parameters of supercapacitor

Singh, Adarsh Pal; Tiwari, Nitesh; Karandikar, P. B.; Dubey, Aman

doi:10.1109/iic.2015.7150826

Cited by 17 publications

(8 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The allotropes of carbon materials such as graphene, carbon nanotube, graphite, activated carbon, fullerenes and amorphous carbon are used as electrode materials in EDLC supercapacitor. The specific capacitance of these electrodes are highly dependent on their surface area, pore size, surface functionality and electrical conductivity [99,100]. Moreover, these materials are not only restricted as an electroactive material but also used a conductive binder, conducting network and current collector in the other type of supercapacitors.…”

Section: Non-faradaic Capacitive (Edlc Type) Electrode Materialsmentioning

confidence: 99%

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

et al. 2020

View full text Add to dashboard Cite

HIGHLIGHTS• This article reviewed the recent progress on material challenges, charge storage mechanism, and electrochemical performance evaluation of supercapatteries.• Supercapatteries bridge the gap between supercapacitors (low energy density) and batteries (low power density). Fig. 1 a Ragone plot of various electrochemical energy conversion and storage devices [43]. b Schematic illustration of charge storage mechanism of EDL capacitor in porous carbon electrode. c Representation of EDLC structures: Helmholtz model, Gouy-Chapman model and Gouy-Chapman-Stern model. Schematic representation of the charge storage mechanisms in pseudocapacitor; d Intercalation (bulk redox) and e surface redox Nano-Micro Lett.(2020) 12:85Page 5 of 46 85 Table 1 Classification of various energy storage devices according to their charge storage mechanisms NFCS non-Faradaic capacitive storage = EDLC storage, CFS capacitive Faradaic storage = pseudocapacitive storage, NCFS non-capacitive Faradaic storage = battery-type storage Device Supercapattery Battery Supercapacitor Hybrid supercapacitor EDLC Pseudocapacitors

show abstract

Section: Non-faradaic Capacitive (Edlc Type) Electrode Materialsmentioning

confidence: 99%

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Thus, during the stability test, the rate of permeation of the electrode material from the surface to the inland increases with the number of cycles, which gradually activates the material, enhances the number of active sites, and results in the fluctuation in the capacitance value of the fabricated device. Moreover, the successive charge–discharge cycles improve the rate of electrolyte ion accessibility toward the electrode material, which improves the contact time and area between the electrode and electrolyte, and it has an effect on the capacitance value. − After several charge–discharge cycles, the amount of electrolyte ions encapsulated/embedded in the electrode material increases the chances of dismantling the electrode material, which gradually reduces the specific capacitance. The Coulombic efficiency of the prepared device over 5000 GCD cycles has been analyzed at a current density of 10 Ag –1 (Figure f), which depicts that the device possesses a high Coulombic efficiency of almost 100% throughout the cycles.…”

Section: Resultsmentioning

confidence: 99%

Selective Growth of Molybdenum Sulfo-Selenides on a Defect-Rich Carbon Nanotube Skeleton for Efficient Energy Storage and Hydrogen Generation Applications

Kuniyil

Rout

2022

Energy Fuels

View full text Add to dashboard Cite

The design of multifunctional advanced nanomaterials is a fascinating and demanding approach to harness clean and sustainable energy. Two-dimensional metallic transition-metal chalcogenide-based alloys are regarded as a viable option for energy storage and hydrogen evolution reaction (HER) applications due to their improved electrical conductivity, presence of additional active sites, and capacity to make hybrids with various materials. Herein, a facile hydrothermal approach is employed to construct 1D/2D MoSSe@f-CNT heterostructures, and their energy storage/conversion performance was investigated. The fabricated asymmetric device based on MoSSe@f-CNT//VSe2/rGO/CNT showed a high specific capacitance of 111 F/g with a high energy density (26 Wh/kg) and power density (11,250 W/kg). Also, the catalyst shows a decent electrocatalytic HER performance with a low overpotential value of 249 mV at a current density (j) of 10 mA cm–2 in a 0.5 M H2SO4 electrolyte.

show abstract

“…The electrochemical performance of carbon materials is influenced by several variables, including specific surface area, surface functionality, pore size distribution, and electrical conductivity. [42][43][44] Electrical double-layer supercapacitors (EDLCs), which work -on the reversible adsorption of electrolyte ions onto the electroactive surfaces, frequently use porous carbon materials as electrode materials. The high specific surface area of carbonbased materials makes it possible for the charge to accumulate effectively at the electrode-electrolyte contact.…”

Section: Carbon-based Electrode Materialsmentioning

confidence: 99%

High Energy Density Supercapacitors: An Overview of Efficient Electrode Materials, Electrolytes, Design, and Fabrication

Pathak,

Bhatt,

Bhatt

et al. 2023

The Chemical Record

View full text Add to dashboard Cite

Supercapacitors (SCs) are potentially trustworthy energy storage devices, therefore getting huge attention from researchers. However, due to limited capacitance and low energy density, there is still scope for improvement. The race to develop novel methods for enhancing their electrochemical characteristics is still going strong, where the goal of improving their energy density to match that of batteries by increasing their specific capacitance and raising their working voltage while maintaining high power capability and cutting the cost of production. In this light, this paper offers a succinct summary of current developments and fresh insights into the construction of SCs with high energy density which might help new researchers in the field of supercapacitor research. From electrolytes, electrodes, and device modification perspectives, novel applicable methodologies were emphasized and explored. When compared to conventional SCs, the special combination of electrode material/composites and electrolytes along with their fabrication design considerably enhances the electrochemical performance and energy density of the SCs. Emphasis is placed on the dynamic and mechanical variables connected to SCs′ energy storage process. To point the way toward a positive future for the design of high‐energy SCs, the potential and difficulties are finally highlighted. Further, we explore a few important topics for enhancing the energy densities of supercapacitors, as well as some links between major impacting factors. The review also covers the obstacles and prospects in this fascinating subject. This gives a fundamental understanding of supercapacitors as well as a crucial design principle for the next generation of improved supercapacitors being developed for commercial and consumer use.

show abstract

Effect of electrode shape on the parameters of supercapacitor

Abstract: Electrical energy storage is a persistent issue in today's era. Recent developments in this field have led to the emergence of supercapacitors which boasts higher energy and power density as compared to conventional capacitors. Since 978-1-4799-7165-7/15/$31.00

Cited by 17 publications

References 11 publications

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

Selective Growth of Molybdenum Sulfo-Selenides on a Defect-Rich Carbon Nanotube Skeleton for Efficient Energy Storage and Hydrogen Generation Applications

High Energy Density Supercapacitors: An Overview of Efficient Electrode Materials, Electrolytes, Design, and Fabrication

Contact Info

Product

Resources

About