Publication Type:

Journal Article

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)

Abstract:

A peculiar architecture of one-dimensional MnO<inf>2</inf> 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.

Notes:

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Cite this Research Publication

, “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.