Issue 16, 2022

Constructing NiCo2Se4/NiCoS4 heterostructures for high-performance rechargeable aluminum battery cathodes

Abstract

Rechargeable aluminum batteries (RABs) are regarded as promising candidates for new-generation rechargeable batteries. However, due to the high charge density of Al3+, the modest cycling performance of RABs is difficult to improve, given the strong coulombic interaction between Al3+ and host materials. Heterostructure engineering is emerging as a promising strategy to further enhance the electrochemical performance of energy storage devices. Herein, heterostructured NiCo2Se4/NiCoS4 prepared via a two-step solvothermal treatment is reported as a new type of RAB cathode material. As expected, the heterostructured NiCo2Se4/NiCoS4 cathode delivers a discharged specific capacity of 112 mA h g−1 over 195 cycles. It is instructive to note that the operational mechanism of the RABs is the intercalation of Al3+ and the redox process of Co, Ni, and S elements.

Graphical abstract: Constructing NiCo2Se4/NiCoS4 heterostructures for high-performance rechargeable aluminum battery cathodes

Supplementary files

Article information

Article type
Research Article
Submitted
02 May 2022
Accepted
17 Jun 2022
First published
28 Jun 2022

Inorg. Chem. Front., 2022,9, 4041-4048

Constructing NiCo2Se4/NiCoS4 heterostructures for high-performance rechargeable aluminum battery cathodes

W. Zhou, Y. Du, R. Kang, X. Sun, W. Zhang, J. Wan, G. Chen and J. Zhang, Inorg. Chem. Front., 2022, 9, 4041 DOI: 10.1039/D2QI00959E

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