Lawrence Berkeley National Laboratory
Synthesis of copper sulfide nanowire bundles in a mixed solvent as a cathode material for lithium-ion batteries
- Author(s): Feng, C
- Zhang, L
- Wang, Z
- Song, X
- Sun, K
- Wu, F
- Liu, G
- et al.
Published Web Locationhttps://doi.org/10.1016/j.jpowsour.2014.07.006
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.