Journal ArticleDOI
Carbon-based materials as supercapacitor electrodes
Lili Zhang,Xiu Song Zhao +1 more
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TLDR
This tutorial review provides a brief summary of recent research progress on carbon-based electrode materials forsupercapacitors, as well as the importance of electrolytes in the development of supercapacitor technology.Abstract:
This tutorial review provides a brief summary of recent research progress on carbon-based electrode materials for supercapacitors, as well as the importance of electrolytes in the development of supercapacitor technology. The basic principles of supercapacitors, the characteristics and performances of various nanostructured carbon-based electrode materials are discussed. Aqueous and non-aqueous electrolyte solutions used in supercapacitors are compared. The trend on future development of high-power and high-energy supercapacitors is analyzed.read more
Citations
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A melt route for the synthesis of activated carbon derived from carton box for high performance symmetric supercapacitor applications
TL;DR: In this paper, a facile strategy is proposed for generating porosity in porous carbons by using carton box as the precursor and eutectic NaOH-KOH melt as the activating agent.
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A universal equivalent circuit for carbon-based supercapacitors
TL;DR: In this paper, a universal equivalent circuit for carbon-based supercapacitors is proposed, which consists of a single vertical ladder network in series with an RC parallel network, which explains the three most important shortcomings of present-day supercapACitors, namely open circuit voltage decay, capacitance loss at high frequency, and voltammetric distortion at high scan rate.
Journal ArticleDOI
Physical interpretation of cyclic voltammetry for measuring electric double layer capacitances
Hainan Wang,Laurent Pilon +1 more
TL;DR: In this paper, the authors developed a model for simulating the electric double layer dynamics in CV measurements while simultaneously accounting for transport phenomena in both the electrode and the electrolyte, and established that the hump in CV curves for electrodes with large radius of curvature was due to the saturation of ion concentration near the electrode surface before reaching the maximum potential.
Journal ArticleDOI
Magnetic field induced capacitance enhancement in graphene and magnetic graphene nanocomposites
Jiahua Zhu,Minjiao Chen,Honglin Qu,Zhiping Luo,Shijie Wu,Henry A. Colorado,Suying Wei,Zhanhu Guo +7 more
TL;DR: In this article, an external magnetic field was applied to both graphene and MGNC electrodes to enhance the capacitance of the electrodes, and the results showed that the magnetic field played a critical role in restricting the interfacial relaxation process and thus enhanced the electrode capacitance.
Journal ArticleDOI
A review of metal oxide composite electrode materials for electrochemical capacitors
TL;DR: In this paper, a review of metal oxide composite electrodes for symmetric and asymmetric electrochemical capacitors is presented, and a projection of future development in hybrid capacitor coupling lithium metal oxides and carbonaceous materials is discussed.
References
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Journal ArticleDOI
The rise of graphene
TL;DR: Owing to its unusual electronic spectrum, graphene has led to the emergence of a new paradigm of 'relativistic' condensed-matter physics, where quantum relativistic phenomena can now be mimicked and tested in table-top experiments.
Journal ArticleDOI
Materials for electrochemical capacitors
TL;DR: This work has shown that combination of pseudo-capacitive nanomaterials, including oxides, nitrides and polymers, with the latest generation of nanostructured lithium electrodes has brought the energy density of electrochemical capacitors closer to that of batteries.
Journal ArticleDOI
Nanostructured materials for advanced energy conversion and storage devices
Antonino S. Aricò,Peter G. Bruce,Bruno Scrosati,Jean-Marie Tarascon,Jean-Marie Tarascon,Walter van Schalkwijk +5 more
TL;DR: This review describes some recent developments in the discovery of nanoelectrolytes and nanoeLECTrodes for lithium batteries, fuel cells and supercapacitors and the advantages and disadvantages of the nanoscale in materials design for such devices.
Journal ArticleDOI
What Are Batteries, Fuel Cells, and Supercapacitors?
Martin Winter,Ralph J. Brodd +1 more
TL;DR: Batteries, fuel cells and supercapacitors belong to the same family of energy conversion devices and are needed to service the wide energy requirements of various devices and systems.
Book
Electrochemical Supercapacitors : Scientific Fundamentals and Technological Applications
TL;DR: In this paper, the double-layer and surface functionalities at Carbon were investigated and the double layer at Capacitor Electrode Interfaces: its structure and Capacitance.