Multicomponent Silicate Cathode Materials for Rechargeable Li-ion Batteries: An Ab Initio Study

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Multicomponent Silicate Cathode Materials for Rechargeable Li-ion Batteries: An Ab Initio Study

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Title: Multicomponent Silicate Cathode Materials for Rechargeable Li-ion Batteries: An Ab Initio Study
Author(s):
Longo, Roberto C.;
Xiong, Ka;
Cho, Kyeongjae
Item Type: article
Keywords: Silicates
Olivine
Tetrahedral silicates
Lithium ion batteries
Abstract: A first principles investigation is performed to study the structural and electrochemical properties of new multicomponent silicate materials that can be suitable for the cathode of rechargeable Li-ion batteries. The distribution of different transition metals in the silicate structure alters the structural and electronic properties of the crystal, affecting its kinetics, redox potentials and both ionic and electronic conductivities. We also explain the effect of the multiple interactions between Li ions and the transition metals. These multicomponent structures represent a very powerful strategy to control the electrochemical performance of the silicates. In this work, we finally address the implications of such strategy on the design of Li-ion batteries.
ISSN: 0013-4651
Link to Related Resource: http://dx.doi.org/10.1149/2.067301jes
Persistent Link: http://hdl.handle.net/10735.1/3860
Terms of Use: All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).
©2012 The Electrochemical Society
Sponsors: "This work was supported by U. S. Department of Energy under Contract No. DE-EE0004186. The authors also acknowledge the Texas Advanced Computer Center (TACC) for providing HPC resources that have contributed to the research results reported within this paper. K.C. was supported by the NRF of Korea through WCU program (Grant No. R-31-2009-000-10083-0)."

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