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The good reactivity of lithium with nanostructured copper phosphide

Villevieille, Claire and Robert, Florent and Taberna, Pierre-Louis and Bazin, Laurent and Simon, Patrice and Monconduit, Laure The good reactivity of lithium with nanostructured copper phosphide. (2008) Journal of Materials Chemistry, vol. 18 (n° 48). 5956 -5960. ISSN 1364-5501

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Official URL: http://dx.doi.org/10.1039/b810841b

Abstract

In Li-ion battery technology, Li diffusion in the electrode is mainly limited by the quality of the interfaces. To take advantage of the large capacity gain offered by the transition metal phosphides (TMP) as negative electrode, a new self-supported TMP/Cu nanoarchitectured electrode concept is proposed. This specific design allows one to fine-tune control of both (TMP)/current collector and (TMP)/electrolyte interfaces of the electrode. This new electrode preparation process is based on an electrochemical templated synthesis of copper nanorods followed by a phosphorus vaporization. The P vapour reacts with the Cu nanorods leading to Cu3P nanorods. Preliminary electrochemical tests of the as-obtained Cu3P nanorods/Li half cell show the great interest of using such a nanostructured TMP electrode in a Li battery. These nanoarchitectured phosphide electrodes can sustain a C-rate (a full discharge in 1h) cycling without exhibiting any important reversible capacity loss for 20 cycles.

Item Type:Article
Additional Information:Thanks to Journal of Materials Chemistry editor. The definitive version is available at http://www.rsc.org/ The original PDF of the article can be found at Journal of Materials Chemistry website : http://www.rsc.org/publishing/journals/JM/article.asp?doi=b810841b
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Université de Montpellier 2 (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratory name:
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Deposited By: Nihad Lahdifi

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