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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Bridging the performance gap between electric double-layer capacitors and batteries with high-energy/high-power carbon nanotube-based electrodes
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Rational Design of Ni Nanoparticles on N‐Rich Ultrathin Carbon Nanosheets for High‐Performance Supercapacitor Materials: Embedded‐ Versus Anchored‐Type Dispersion
TL;DR: Highly dispersed Ni nanoparticles and abundant functional N-species were integrated into ultrathin carbon nanosheets by using a facile and economical sol-gel route and can be generalized to design high-performance energy-storage devices.
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Flexible anode materials for lithium-ion batteries derived from waste biomass-based carbon nanofibers: I. Effect of carbonization temperature
Lei Tao,Lei Tao,Yuanbo Huang,Xiaoqin Yang,Yunwu Zheng,Can Liu,Mingwei Di,Zhifeng Zheng,Zhifeng Zheng +8 more
TL;DR: In this paper, the mass ratio of the liquefying process and the effects of the high temperature carbonization process at 1000, 1500 and 2000 °C were investigated, and the morphology, structural properties and specific surface area of carbon nanofibers derived from a waste biomass (walnut shells) were investigated.
Journal ArticleDOI
Facile synthesis of nitrogen-doped hierarchical porous lamellar carbon for high-performance supercapacitors
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TL;DR: In this article, a pseudocapacitive conversion-type and robust hetero-nanostructural cobalt-manganese perovskite fluorides/reduced graphene oxides (KCMF(3 : 2)/rGO) anodes with superior kinetics and stability for advanced LICs, LIBs and their hybrids (LIC/Bs).
References
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Journal ArticleDOI
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