Upadhyayula V Varadaraju

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Upadhyayula V Varadaraju
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Upadhyayula V Varadaraju
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Varadaraju, Upadhyayula V.
Varadaraju, Upadhyayula
Varadaraju, U. V.
Varadaraju, Upadhyayula Venkata
Varadaraju, Upadhayayula V.
Varadaraju, U.
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    Pb3O4 type antimony oxides MSb2O 4 (M = Co, Ni) as anode for Li-ion batteries
    (01-06-2012)
    Jibin, A. K.
    ;
    Reddy, M. V.
    ;
    Subba Rao, G. V.
    ;
    Upadhyayula V Varadaraju 
    ;
    Chowdari, B. V.R.
    Polycrystalline samples of isostructural MSb2O4 (M = Co, Ni) have been prepared by solid state synthesis and lithium-storage is investigated as possible anode materials for lithium-ion batteries. The reaction mechanism of lithium with MSb2O4 (M = Co, Ni) is explored by galvanostatic cycling, cyclic voltammo-gram and ex situ studies. Both CoSb2O4 and NiSb2O4 exhibit similar electrochemical behavior and show reversible capacity of 490 and 412 mAhg -1 respectively in the first cycle. Reversible alloying de-alloying of Lix Sb takes place in an amorphous matrix of M (Co, Ni) and Li2O during electrochemical cycling. © 2012 Elsevier Ltd. All rights reserved.