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In-situ X-ray diffraction study of the Li-alloying electrochemical process in a tin-carbon nanocomposite electrode

TitleIn-situ X-ray diffraction study of the Li-alloying electrochemical process in a tin-carbon nanocomposite electrode
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2012
AuthorsReale, P., Morcrette M., and Hassoun J.
JournalNanoscience and Nanotechnology Letters
Volume4
Pagination132-135
KeywordsA-carbon, Advanced lithium-ion batteries, Alloying, carbon, Carbon composites, Charge-discharge tests, Composite materials, Electric batteries, Electrochemical electrodes, Electrochemical process, Electrochemical reactions, High capacity, In-situ, In-situ X-ray diffraction, Intermediate reactions, Lithium, Lithium batteries, Lithium cells, Lithium compounds, Lithium-alloying, Lithium-ion battery, Nanocomposite electrodes, Nanocomposites, Tin, Tin-carbon, Working electrode, X ray diffraction
Abstract

A high capacity lithium alloying composite in which 10-50 nm size tin (Sn) particles are trapped within a carbon matrix is here deeply studied by employing in-situ X-ray diffraction during the electrochemical reaction in lithium cell. The reversibility of the process is evidenced by the vanishing and the re-appearing of the crystallographic peaks associated with the Sn metal, while the signatures of few Li-Sn alloys are identified as the intermediate reaction products. These clear evidences, in addition to the electrochemical charge-discharge tests run using the tin carbon composite as working electrode in the lithium cell, demonstrate the high reversibility of the process, and hence the valid role of the tin carbon composite as high performance electrode for advanced lithium ion batteries. Copyright © 2012 American Scientific Publishers All rights reserved.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84862125858&doi=10.1166%2fnnl.2012.1295&partnerID=40&md5=8a01d24ed78b5e9a250b284054da1361
DOI10.1166/nnl.2012.1295
Citation KeyReale2012132