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Open Access Publications from the University of California

Synthesis of copper sulfide nanowire bundles in a mixed solvent as a cathode material for lithium-ion batteries


Novel copper sulfide (CuS) nanowire bundles with a diameter of about 6 nm and a length up to several micrometers are successfully synthesized by a template- and surfactant-free method in a dimethyl sulfoxide (DMSO)-ethyl glycol (EG) mixed solvent. The resulting CuS nanowire bundles are used as a cathode material in lithium-ion batteries and exhibit a large capacity and excellent cycling stability and rate capability. The unique structure of the CuS nanowire bundles is responsible for their excellent electrochemical performance. © 2014 Elsevier B.V. All rights reserved.

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