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Issue 26, 2018
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Hollow Ni–NiO nanoparticles embedded in porous carbon nanosheets as a hybrid anode for sodium-ion batteries with an ultra-long cycle life

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Abstract

As a candidate of the next-generation rechargeable batteries, sodium-ion batteries (SIBs) have attracted great interest owing to the high abundance, low cost and environmental benignity of sodium resources. However, a shortage of appropriate anode materials with superior electrochemical performance has become the major bottleneck for their future development. Here, a unique hybrid material of hollow Ni–NiO nanoparticles embedded in porous carbon nanosheets (PCNs) was fabricated through a facile in situ synthesis strategy. As an anode in SIBs, the as-fabricated Ni–NiO/PCN electrode shows an ultra-long cycle life (a nearly unvarying capacity of 235.4 mA h g−1 at a current density of 1 A g−1 even after 5000 cycles), which originates from the synergistic effect of high-content carbon, interconnected PCNs, metallic Ni phase, and hollow Ni–NiO nanoparticles. This work provides a promising strategy for rationally developing novel electrode materials for advanced energy storage devices.

Graphical abstract: Hollow Ni–NiO nanoparticles embedded in porous carbon nanosheets as a hybrid anode for sodium-ion batteries with an ultra-long cycle life

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Publication details

The article was received on 22 Apr 2018, accepted on 05 Jun 2018 and first published on 05 Jun 2018


Article type: Paper
DOI: 10.1039/C8TA03692F
Citation: J. Mater. Chem. A, 2018,6, 12663-12671
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    Hollow Ni–NiO nanoparticles embedded in porous carbon nanosheets as a hybrid anode for sodium-ion batteries with an ultra-long cycle life

    C. C. Yang, D. M. Zhang, L. Du and Q. Jiang, J. Mater. Chem. A, 2018, 6, 12663
    DOI: 10.1039/C8TA03692F

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