Improved Lithium Cyclability and Storage in Mesoporous SnO2 Electronically Wired with Very Low Concentrations (≤1 %) of Reduced Graphene Oxide

Authors

  • Konda Shiva,

    1. Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012 (India), Fax: (+91) 8023601310
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  • H. B. Rajendra,

    1. Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012 (India), Fax: (+91) 8023601310
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  • K. S. Subrahmanyam,

    1. Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064 (India)
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  • Dr. Aninda J. Bhattacharyya,

    Corresponding author
    1. Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012 (India), Fax: (+91) 8023601310
    • Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012 (India), Fax: (+91) 8023601310
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  • Prof. C. N. R. Rao

    1. Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012 (India), Fax: (+91) 8023601310
    2. Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064 (India)
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Abstract

original image

On the wire: Mesoporous tin dioxide (SnO2) wired with very low amounts (≤1 %) of reduced graphene oxide (rGO) exhibits a remarkable improvement in lithium-ion battery performance over bare mesoporous or solid nanoparticles of SnO2 (see figure). Reversible lithium intercalation into SnO2/SnO over several cycles was demonstrated in addition to conventional reversible lithium storage by an alloying reaction.

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