Antimony based negative electrodes for next generation Li-ion batteries
- 9 August 2013
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry A
- Vol. 1 (41), 13011-13016
- https://doi.org/10.1039/c3ta12762a
Abstract
Crystalline TiSb2 and NbSb2 prepared by the ceramic route were examined as negative electrodes for lithium-ion batteries. The crystal structures of both materials are different, as well as their electrochemical responses. TiSb2 has a specific charge of 450 mA h g−1 at an average potential of 0.7 V vs. Li+/Li and is able to maintain this specific charge during 70 cycles while NbSb2 has a specific charge of 400 mA h g−1 for the first few cycles which then fades continuously. The reaction mechanism was revisited in this paper by applying high resolution in situ synchrotron X-ray diffraction characterization combined with electrochemical tests.This publication has 34 references indexed in Scilit:
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