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Issue 7, 2014
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Preparation, structure and electrochemistry of LiFeBO3: a cathode material for Li-ion batteries

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Abstract

LiMBO3 (M = Fe, Co, Mn) has been identified as an interesting new cathode material for Li-ion batteries. It was shown to be difficult to synthesize the material as a pure phase and in a highly electrochemically active form. Here we report several methods for the successful preparation of LiFeBO3, including traditional ceramic and self-combustion reactions. By decreasing the particle size and introducing in situ carbon coating, conventionally ceramic-synthesized LiFeBO3/C yields a first discharge of 210 mA h g−1 within the 1.5–4.5 V voltage window at a C/20 rate, 55 °C. Using high-resolution synchrotron X-ray diffraction, neutron powder diffraction and single crystal X-ray diffraction in combination with 6Li NMR and 57Fe Mössbauer spectroscopies, we present a “1Fe 2Li” complex cation distribution model for LiFeBO3 powder.

Graphical abstract: Preparation, structure and electrochemistry of LiFeBO3: a cathode material for Li-ion batteries

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Article information


Submitted
01 Aug 2013
Accepted
13 Nov 2013
First published
15 Nov 2013

J. Mater. Chem. A, 2014,2, 2060-2070
Article type
Paper
Author version available

Preparation, structure and electrochemistry of LiFeBO3: a cathode material for Li-ion batteries

L. Tao, G. Rousse, J. N. Chotard, L. Dupont, S. Bruyère, D. Hanžel, G. Mali, R. Dominko, S. Levasseur and C. Masquelier, J. Mater. Chem. A, 2014, 2, 2060
DOI: 10.1039/C3TA13021E

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