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Copper sulfide nanoparticles as high-performance cathode material for magnesium secondary batteries

Abstract

Magnesium secondary battery is a promising candidate for large-scale energy storage system with high safety, because of the dendrite-free electrodeposition of magnesium anode. However, searching for available cathode materials remains a significant challenge blocking its development. In this work, we reported copper sulfide nanoparticles as high-performance cathode material for magnesium secondary batteries, which delivers a high reversible capacity of 175 mAh g‒1 at 50 mAh g‒1. The cathode also shows an excellent rate capability providing 90 mAh g‒1 at 1000 mAh g‒1 and an outstanding long-term cycleability over 350 cycles. The auspicious properties are ascribed to the small-sized copper sulfide particles which facilitates the solid-state diffusion kinetics. This work introduces an abundant, low-cost and high-performance cathode material for magnesium secondary batteries, and provides feasibility for the practical application of magnesium secondary battery system in large-scale energy storage devices.

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Publication details

The article was received on 25 Apr 2018, accepted on 04 Jun 2018 and first published on 04 Jun 2018


Article type: Paper
DOI: 10.1039/C8NR03375G
Citation: Nanoscale, 2018, Accepted Manuscript
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    Copper sulfide nanoparticles as high-performance cathode material for magnesium secondary batteries

    M. Wu, Y. Zhang, T. Li, Z. Chen, S. Cao and F. Xu, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR03375G

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