2016
DOI: 10.1021/acsnano.6b01505
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Electrical, Mechanical, and Capacity Percolation Leads to High-Performance MoS2/Nanotube Composite Lithium Ion Battery Electrodes

Abstract: Advances in lithium ion batteries would facilitate technological developments inareas from electrical vehicles to mobile communications. While 2-dimensional systems like MoS2 are promising electrode materials due to their potentially high capacity, their poor ratecapability and low cycle-stability are severe handicaps. Here we study the electrical, mechanical and lithium storage properties of solution-processed MoS2/carbon nanotube anodes.Nanotube addition gives up to ×10 10 and ×40 increases in electrical con… Show more

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Cited by 166 publications
(191 citation statements)
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References 72 publications
(224 reference statements)
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“…Fitting gives the mechanical percolation threshold and exponent to be c,m=4.8vol% and nm=0.6 respectively, similar to previous reports. [52] We note that the reinforcement mechanism is in-part associated with the fact that cracking is suppressed by bridging with nanotubes (figure 3B inset).…”
Section: Optimisation Of Catalytic Performance: Adding Carbon Nanotubesmentioning
confidence: 92%
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“…Fitting gives the mechanical percolation threshold and exponent to be c,m=4.8vol% and nm=0.6 respectively, similar to previous reports. [52] We note that the reinforcement mechanism is in-part associated with the fact that cracking is suppressed by bridging with nanotubes (figure 3B inset).…”
Section: Optimisation Of Catalytic Performance: Adding Carbon Nanotubesmentioning
confidence: 92%
“…Previously, the toughness, which is a measure of the volumetric fracture energy, has been linked with the cycling stability of battery electrodes. [52] The toughness, T, is plotted in figure 3B versus SWNT volume fraction and shows a 1000-fold improvement, characterised by a sharp increase at ~5vol%. It has been suggested [52] that such an increase coincides with the formation of a fully-formed nanotube network with the toughness increase subsequently described by percolation theory:…”
Section: Optimisation Of Catalytic Performance: Adding Carbon Nanotubesmentioning
confidence: 98%
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