Advances in Stabilizing 'Layered-Layered' xLi2MnO3·(1-x)LiMO2 (M=Mn, Ni, Co) Electrodes with a Spinel Component

Composite electrode structures with layered and spinel components have been investigated to evaluate the possibility of arresting or suppressing the voltage fade observed on cycling high capacity, lithium- and manganese-rich 'layered-layered' xLi2MnO3*(1-x)LiMO2 (M=Mn, Ni, Co) electrodes i...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 2014-01, Vol.161 (14), p.A2160-A2167
Main Authors: Long, Brandon R., Croy, Jason R., Park, Joong Sun, Wen, Jianguo, Miller, Dean J., Thackeray, Michael M.
Format: Article
Language:English
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Summary:Composite electrode structures with layered and spinel components have been investigated to evaluate the possibility of arresting or suppressing the voltage fade observed on cycling high capacity, lithium- and manganese-rich 'layered-layered' xLi2MnO3*(1-x)LiMO2 (M=Mn, Ni, Co) electrodes in lithium cells. Control of the spinel content in 'layered-layered-spinel' electrode materials and regulating the electrochemical voltage window of the lithium cells enables a capacity of approximately 190 mAh/g with little voltage fade. The results bode well for enhancing the electrochemical properties and structural stability of composite electrode structures on long-term cycling in lithium-ion batteries.
ISSN:0013-4651
DOI:10.1149/2.0681414jes