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Carbon-Encapsulated SnO2 Core Shell Nanowires Directly Grown on Reduced Graphene Oxide Sheets for High-Performance Li-Ion Battery Electrodes

Authors
  • Lee, Sang Ho
  • Noh, Yuseong
  • Jo, Yong-Ryun
  • Kim, Yoongon
  • Kim, Bong-Joong
  • Kim, Won Bae
Publication Date
Jul 01, 2018
Source
[email protected]
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Unknown
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Abstract

A designed electrode material of carbon-encapsulated tin dioxide core-shell nanowires that are synthesized directly on reduced graphene oxide substrates is reported, and its application as a positive electrode material for lithium-ion battery is shown. Each of the individual tin dioxide nanowires is wrapped with carbon shell layers and grown on a reduced graphene oxide substrate, which gives rise to structural benefits for electrochemical performance of the lithium-ion battery. Such carbon structures allow the electrode materials to withstand the mechanical stress during repeated charge/discharge processes and facilitate the reaction kinetics for the lithiation/delithiation processes. In the electrochemical cell tests, the synergetic effect of the proposed electrode design is explicitly verified by presenting highly enhanced rate capability and cycle durability on full-cell batteries as well as half-cell tests. / 1 / 1 / N / scie / scopus

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