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Synthesis, Characterization and Rate Capability Performance of the Micro-porous MnO2 Nanowires as Cathode Material in Lithium Batteries

Publication Type : Journal Article

Thematic Areas : Nanosciences and Molecular Medicine

Publisher : Materials Research Bulletin

Source : Materials Research Bulletin, Elsevier Ltd, Volume 70, p.1-6 (2015)

Url : http://www.scopus.com/inward/record.url?eid=2-s2.0-84927589962&partnerID=40&md5=c00e3bce00f16180d00b0353f7281866

Keywords : Aspect ratio, Cath-ode materials, Cathodes, Cycling performance, Electric batteries, Electrochemical electrodes, Electrochemical studies, Electrodes, High aspect ratio, Hydrothermal routes, Lithium, Lithium batteries, Lithium coin cells, Manganese oxide, Nanowires, Reaction behavior, Redox reactions, Secondary batteries, Specific capacities, Surface reactions, Synthesis (chemical)

Campus : Kochi

School : Center for Nanosciences

Center : Amrita Center for Nanosciences and Molecular Medicine Move, Nanosciences

Department : Nanosciences

Year : 2015

Abstract : A peculiar architecture of one-dimensional MnO2 nanowires was synthesized by an optimized hydrothermal route and has been lucratively exploited to fabricate highly efficient microporous electrode overlays for lithium batteries. These fabricated electrodes comprised of interconnected nanoscale units with wire-shaped profile which exhibits high aspect ratio in the order of 102. Their outstanding intercalation/de-intercalation prerogatives have also been studied to fabricate lithium coin cells which revealed a significant specific capacity and power density of 251 mAh g-1 and 200 W kg-1, respectively. A detailed electrochemical study was performed to elucidate how surface morphology and redox reaction behaviors underlying these electrodes influence the cyclic behavior of the electrode. Rate capability tests at different C-rates were performed to evaluate the capacity and cycling performance of these coin cells. © 2015 Elsevier Ltd. All rights reserved.

Cite this Research Publication : R. Ranjusha, Sonia, T. S., Lakshmi, V., Roshny, S., Kalluri, S., Kim, T. N., Shantikumar V Nair, and Balakrishnan, A., “Synthesis, Characterization and Rate Capability Performance of the Micro-porous MnO2 Nanowires as Cathode Material in Lithium Batteries”, Materials Research Bulletin, vol. 70, pp. 1-6, 2015.

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