Journal ArticleDOI
Carbon Materials for Chemical Capacitive Energy Storage
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TLDR
In order to further improve the power and energy densities of the capacitors, carbon-based composites combining electrical double layer capacitors (EDLC)-capacitance and pseudo-Capacitance have been explored and show not only enhanced capacitance, but as well good cyclability.Abstract:
Carbon materials have attracted intense interests as electrode materials for electrochemical capacitors, because of their high surface area, electrical conductivity, chemical stability and low cost. Activated carbons produced by different activation processes from various precursors are the most widely used electrodes. Recently, with the rapid growth of nanotechnology, nanostructured electrode materials, such as carbon nanotubes and template-synthesized porous carbons have been developed. Their unique electrical properties and well controlled pore sizes and structures facilitate fast ion and electron transportation. In order to further improve the power and energy densities of the capacitors, carbon-based composites combining electrical double layer capacitors (EDLC)-capacitance and pseudo-capacitance have been explored. They show not only enhanced capacitance, but as well good cyclability. In this review, recent progresses on carbon-based electrode materials are summarized, including activated carbons, carbon nanotubes, and template-synthesized porous carbons, in particular mesoporous carbons. Their advantages and disadvantages as electrochemical capacitors are discussed. At the end of this review, the future trends of electrochemical capacitors with high energy and power are proposed.read more
Citations
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Journal ArticleDOI
Porous 3D Few-Layer Graphene-like Carbon for Ultrahigh-Power Supercapacitors with Well-Defined Structure-Performance Relationship.
Jin Zhao,Yufei Jiang,Hao Fan,Meng Liu,Ou Zhuo,Xizhang Wang,Qiang Wu,Lijun Yang,Yanwen Ma,Zheng Hu +9 more
TL;DR: An effective new approach is demonstrated, which can extend the understanding of structure-performance relationships for many electrochemical energy-storage systems and form a significant complement to classical electrochemical impedance spectroscopy.
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Graphene‐Based Materials for Lithium‐Ion Hybrid Supercapacitors
TL;DR: Graphene-based materials with 3D open frameworks show higher effective specific surface area, better control of channels, and higher conductivity, which make them better candidates for LIHS applications.
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Porous nitrogen-doped hollow carbon spheres derived from polyaniline for high performance supercapacitors
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Promising Porous Carbon Derived from Celtuce Leaves with Outstanding Supercapacitance and CO2 Capture Performance
TL;DR: With simple production process, excellent recyclability and regeneration stability, the porous carbon that was derived from celtuce leaves is among the most promising materials for high-performance supercapacitors and CO₂ capture.
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2D Materials Beyond Graphene for High-Performance Energy Storage Applications
TL;DR: In this article, the authors provide an overview of current research and important advances on the development of 2D materials beyond graphene for supercapacitors and batteries, and highlight the major challenges to be tackled, and more generally the future directions in the field.
References
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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.