Xiang G, Meng Y, Qu G, Yin J, Teng B, Wei Q, Xu X. Dual-functional NiCo
2S
4 polyhedral architecture with superior electrochemical performance for supercapacitors and lithium-ion batteries.
Sci Bull (Beijing) 2020;
65:443-451. [PMID:
36747433 DOI:
10.1016/j.scib.2020.01.004]
[Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/04/2019] [Accepted: 12/30/2019] [Indexed: 02/08/2023]
Abstract
Dual-functional NiCo2S4 polyhedral architectures with outstanding electrochemical performance for supercapacitors and lithium-ion batteries (LIBs) have been rationally designed and successfully synthesized by a hydrothermal method. The as-synthesized NiCo2S4 electrode for supercapacitor exhibits an outstanding specific capacitance of 1298Fg-1 at 1Ag-1 and an excellent rate capability of ~80.4% at 20Ag-1. Besides, capacitance retention of 90.44% is realized after 8000 cycles. In addition, the NiCo2S4 as anode in LIBs delivers high initial charge/discharge capacities of 807.6 and 972.8mAhg-1 at 0.5C as well as good rate capability. In view of these points, this work provides a feasible pathway for assembling electrodes and devices with excellent electrochemical properties in the next generation energy storage applications.
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