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Issue 20, 2017
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Pomegranate-like CoO@nitrogen-doped carbon microspheres with outstanding rate behavior and stability for lithium storage

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Abstract

The rational design and preparation of CoO-based materials with excellent electrochemical performances for lithium ion batteries (LIBs) are highly desirable. In this work, we develop a CoO-based material with a novel pomegranate-like microspherical structure, in which ultrafine CoO nanoparticles coupled with a carbon framework are intimately confined within N-doped carbon outer shells (denoted as CoO@NC). Such a robust pomegranate-like architecture can not only facilitate the electron/mass transport in CoO/carbon electrodes to boost rate capability, but can also minimize aggregation of CoO microstructures to prolong their cycle life during the electrochemical process. Correspondingly, the CoO@NC nanocomposite manifests a high capacity of around 1200 mA h gāˆ’1 at 0.1C, excellent cycling stability up to 150 cycles, and a superior rate capability of 533 mA h gāˆ’1 at 10C as an anode material for LIBs.

Graphical abstract: Pomegranate-like CoO@nitrogen-doped carbon microspheres with outstanding rate behavior and stability for lithium storage

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Publication details

The article was received on 31 Jan 2017, accepted on 13 Apr 2017 and first published on 13 Apr 2017


Article type: Paper
DOI: 10.1039/C7TA00983F
Citation: J. Mater. Chem. A, 2017,5, 9801-9806
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    Pomegranate-like CoO@nitrogen-doped carbon microspheres with outstanding rate behavior and stability for lithium storage

    G. Liu and J. Shao, J. Mater. Chem. A, 2017, 5, 9801
    DOI: 10.1039/C7TA00983F

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