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Issue 27, 2011
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Silicate cathodes for lithium batteries: alternatives to phosphates?

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Abstract

Polyoxyanion compounds, particularly the olivine-phosphate LiFePO4, are receiving considerable attention as alternative cathodes for rechargeable lithium batteries. More recently, an entirely new class of polyoxyanion cathodes based on the orthosilicates, Li2MSiO4 (where M = Mn, Fe, and Co), has been attracting growing interest. In the case of Li2FeSiO4, iron and silicon are among the most abundant and lowest cost elements, and hence offer the tantalising prospect of preparing cheap and safe cathodes from rust and sand! This Highlight presents an overview of recent developments and future challenges of silicate cathode materials focusing on their structural polymorphs, electrochemical behaviour and nanomaterials chemistry.

Graphical abstract: Silicate cathodes for lithium batteries: alternatives to phosphates?

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Publication details

The article was received on 20 Jan 2011, accepted on 22 Feb 2011 and first published on 29 Mar 2011


Article type: Highlight
DOI: 10.1039/C1JM10312A
Citation: J. Mater. Chem., 2011,21, 9811-9818
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    Silicate cathodes for lithium batteries: alternatives to phosphates?

    M. S. Islam, R. Dominko, C. Masquelier, C. Sirisopanaporn, A. R. Armstrong and P. G. Bruce, J. Mater. Chem., 2011, 21, 9811
    DOI: 10.1039/C1JM10312A

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