Custom designed nanocrystalline Li2MSiO4/ reduced graphene oxide (M = Fe, Mn) formulations as high capacity cathodes for rechargeable lithium batteries†
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
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Title |
Custom designed nanocrystalline Li2MSiO4/
reduced graphene oxide (M = Fe, Mn) formulations
as high capacity cathodes for rechargeable lithium
batteries†
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Creator |
Bhuvaneswari, D.
Kalaiselvi, N. |
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Subject |
Electrochemical Materials Science
Electrochemical Power Sources |
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Description |
Nanocrystalline Li2MSiO4 (M = Fe, Mn) particles embedded between in situ formed rGO sheets are
obtained by adopting customized solvothermal synthesis. An appreciable room temperature specific
capacity of 149 mA h g−1 with 89% capacity retention and 210 mA h g−1 with 87% retention have been
exhibited by Li2FeSiO4/rGO and Li2MnSiO4/rGO composites, corresponding to the participation of close
to one and more than one lithium per formula unit respectively. The formation of nanocrystalline
Li2MSiO4 (M = Fe, Mn) compounds in the desired phase and the complete wrapping of orthosilicates with
rGO sheets are believed to be responsible for the excellent electrochemical behavior of the orthosilicate
cathodes of the present study to best suit with requirements of rechargeable lithium-ion batteries. The
abundant availability and eco-benignity advantages of Fe and Mn are valuable additions in the consideration
of Li2MSiO4/rGO (M = Fe, Mn) cathodes as sustainable potential candidates
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Publisher |
The Royal Society of Chemistry
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Date |
2014
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Identifier |
http://cecri.csircentral.net/3080/1/019-2014.pdf
Bhuvaneswari, D. and Kalaiselvi, N. (2014) Custom designed nanocrystalline Li2MSiO4/ reduced graphene oxide (M = Fe, Mn) formulations as high capacity cathodes for rechargeable lithium batteries†. Dalton Trans., 43. pp. 18097-18103. |
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Relation |
http://www.rsc.org/dalton
http://cecri.csircentral.net/3080/ |
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