dc.contributor.authorCheah, Yan Ling
dc.contributor.authorAravindan, Vanchiappan
dc.contributor.authorMadhavi, Srinivasan
dc.identifier.citationCheah, Y. L., Aravindan, V., & Madhavi, S. (2012). Electrochemical Lithium Insertion Behavior of Combustion Synthesized V2O5 Cathodes for Lithium-Ion Batteries. Journal of The Electrochemical Society, 159(3), A273-A280.en_US
dc.description.abstractSub-micron size vanadium pentoxide (V2O5) particles are synthesized by novel urea assisted combustion method. Comprehensive characterization and electrochemical studies related to sintering temperature and duration are presented. X-ray diffraction (XRD) patterns showed the formation of pure-phase V2O5 and the surface morphologies are studied by field emission scanning electron microscopy (FE-SEM). Electrochemical properties of the sintered V2O5 as a cathode in lithium-ion batteries are explored with respect to synthesis parameters using cyclic voltammetry and galvanostatic charge-discharge studies. The V2O5 particles obtained from 600°C sintering temperature for 1 h exhibits a higher initial discharge capacity ∼320 mAh g−1 (∼2.2 Li per V2O5) between 1.75–4.0 V vs. Li/Li+ at 0.1 C rate and shows good capacity retention of >70% after 50 cycles. Electrochemical impedance spectroscopy (EIS) studies show that the urea combustion method enables increased Li+ ion diffusion pathways and electro-active surface area in V2O5 particles. Ball milling procedure with or without carbon is also adopted to further reduce the particle size of V2O5 and related electrochemical properties are evaluated and described.en_US
dc.relation.ispartofseriesJournal of the electrochemical societyen_US
dc.rights© 2012 The Electrochemical Society. This paper was published in Journal of The Electrochemical Society and is made available as an electronic reprint (preprint) with permission of The Electrochemical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1149/2.071203jes]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en_US
dc.titleElectrochemical lithium insertion behavior of combustion synthesized V2O5 cathodes for lithium-ion batteriesen_US
dc.typeJournal Article
dc.contributor.researchEnergy Research Instituteen_US
dc.contributor.researchTUM-CREATE Center for Electromobility
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.description.versionPublished versionen_US

Files in this item


This item appears in the following Collection(s)

Show simple item record