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Issue 6, 2014
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Operando electron magnetic measurements of Li-ion batteries

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Abstract

One of the challenges in the development of batteries consists of investigating new electrode materials and comprehending the mechanism of lithium uptake. Herein, we report on the first operando measurements of electron magnetism in a battery during cycling. We have succeeded in designing a non-magnetic cell and have investigated the lithiation mechanism of FeSb2, a high energy density anode material. The stepwise increase of the magnetic moment reveals an increase of amorphous Fe nanoparticle size, while Sb undergoes reversible alloying with Li.

Graphical abstract: Operando electron magnetic measurements of Li-ion batteries

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The article was received on 12 Feb 2014, accepted on 19 Mar 2014 and first published on 19 Mar 2014


Article type: Paper
DOI: 10.1039/C4EE00490F
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Citation: Energy Environ. Sci., 2014,7, 2012-2016
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    Operando electron magnetic measurements of Li-ion batteries

    G. Gershinsky, E. Bar, L. Monconduit and D. Zitoun, Energy Environ. Sci., 2014, 7, 2012
    DOI: 10.1039/C4EE00490F

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