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Issue 27, 2018
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Porous CaFe2O4 as a promising lithium ion battery anode: a trade-off between high capacity and long-term stability

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Abstract

Metal oxides are considered as attractive candidates as anode materials for lithium ion batteries (LIBs) due to their high capacities compared to commercialized graphite. However, fast capacity fading, which is caused by inherent large volume expansions and agglomeration of active particles upon cycling, is a great challenge. Herein, we propose the design of porous CaFe2O4 electrode material to address the above issue. Compared to pristine iron oxides, CaFe2O4 exhibits a distinct trade-off in terms of high capacity and long-term stability, which is beneficial to the potential practical applications. Such a trade-off effect is attributed to the synergistic effect between the porous structure and the in situ formed CaO nanograins during charging/discharging processes. This work provides an effective strategy in achieving anode materials with high capacity and long-term stability for next-generation LIBs.

Graphical abstract: Porous CaFe2O4 as a promising lithium ion battery anode: a trade-off between high capacity and long-term stability

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Publication details

The article was received on 12 May 2018, accepted on 27 Jun 2018 and first published on 28 Jun 2018


Article type: Communication
DOI: 10.1039/C8NR03840F
Citation: Nanoscale, 2018,10, 12963-12969
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    Porous CaFe2O4 as a promising lithium ion battery anode: a trade-off between high capacity and long-term stability

    C. Han, X. Zhang, X. Xu, Q. Li, Q. He, J. Meng, X. Wang, Z. Liu, P. Wu and L. Mai, Nanoscale, 2018, 10, 12963
    DOI: 10.1039/C8NR03840F

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