Issue 7, 2018

Porous CuO microsphere architectures as high-performance cathode materials for aluminum-ion batteries

Abstract

Cathode materials with a porous structure are important in the development of aluminum-ion batteries (AIBs). In this research, porous microspheric copper oxide (PM-CuO) composed of stacked numerous bitty nanorods has been synthesized for use in AIBs. Using a simple one-pot hydrothermal process, the-as-synthesized PM-CuO possess a large specific surface area of 21.61 m2 g−1 and a pore volume of 0.179 cm3 g−1. These unique porous features allow PM-CuO to improve the electrochemical performance in the assembled AIBs, which exhibit a high initial charge and discharge capacity of 270.62 and 250.12 mA h g−1 (current density of 50 mA g−1), respectively. In the cycling performance, discharge capacity was observed to remain over 130, 121 and 112 mA h g−1 at current densities of 50, 100 and 200 mA g−1, respectively. The favorable properties of PM-CuO cathode materials are attributed to the unique porous structure and this makes them a promising potential material for use as energy storage devices.

Graphical abstract: Porous CuO microsphere architectures as high-performance cathode materials for aluminum-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
04 Dec 2017
Accepted
15 Jan 2018
First published
16 Jan 2018

J. Mater. Chem. A, 2018,6, 3084-3090

Porous CuO microsphere architectures as high-performance cathode materials for aluminum-ion batteries

X. Zhang, G. Zhang, S. Wang, S. Li and S. Jiao, J. Mater. Chem. A, 2018, 6, 3084 DOI: 10.1039/C7TA10632G

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