One-Pot Synthesis and High Electrochemical Performance of CuS/Cu1.8S Nanocomposites as Anodes for Lithium-Ion Batteries

Lin-Hui Wang; Yan-Kun Dai; Yu-Feng Qin; Jun Chen; En-Long Zhou; Qiang Li; Kai Wang

doi:10.3390/ma13173797

One-Pot Synthesis and High Electrochemical Performance of CuS/Cu_1.8S Nanocomposites as Anodes for Lithium-Ion Batteries

Materials (Basel). 2020 Aug 28;13(17):3797. doi: 10.3390/ma13173797.

Authors

Lin-Hui Wang¹, Yan-Kun Dai², Yu-Feng Qin¹, Jun Chen¹, En-Long Zhou², Qiang Li³, Kai Wang⁴

Affiliations

¹ College of Information Science and Engineering, Shandong Agricultural University, Taian 271018, China.
² College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, China.
³ College of Physics, University-Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, Qingdao 266071, China.
⁴ College of Electrical Engineering, Qingdao University, Qingdao 266071, China.

Abstract

CuS and Cu_1.8S have been investigated respectively as anodes of lithium-ion batteries because of their abundant resources, no environment pollution, good electrical conductivity, and a stable discharge voltage plateau. In this work, CuS/Cu_1.8S nanocomposites were firstly prepared simultaneously by the one-pot synthesis method at a relatively higher reaction temperature 200 °C. The CuS/Cu_1.8S nanocomposites anodes exhibited a high initial discharge capacity, an excellent reversible rate capability, and remarkable cycle stability at a high current density, which could be due to the nano-size of the CuS/Cu_1.8S nanocomposites and the assistance of Cu_1.8S. The high electrochemical performance of the CuS/Cu_1.8S nanocomposites indicated that the Cu_xS nanomaterials will be a potential lithium-ion battery anode.

Keywords: CuxS nanoparticles; anodes; high electrochemical performance; lithium-ion batteries; one-pot synthesis.

Abstract

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