Incorporation of TiB2 additive into MnO2 cathode and its influence on rechargeability in an aqueous battery system

M. Minakshi; D.R.G. Mitchell; K. Prince

doi:10.1016/j.ssi.2008.02.057

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Incorporation of TiB2 additive into MnO2 cathode and its influence on rechargeability in an aqueous battery system

Journal article

Peer reviewed

Incorporation of TiB2 additive into MnO2 cathode and its influence on rechargeability in an aqueous battery system

M. Minakshi, D.R.G. Mitchell and K. Prince

Solid State Ionics, Vol.179(9-10), pp.355-361

2008

DOI: https://doi.org/10.1016/j.ssi.2008.02.057

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Abstract

Electrochemical and surface characterization have been conducted to establish the role of small amounts (1, 3 and 5 wt.%) of titanium diboride (TiB2) additive into manganese dioxide (MnO2) cathode with Zn as an anode in an aqueous saturated lithium hydroxide electrolyte battery. The incorporation of small amounts of TiB2 additive into MnO2 was found to improve the discharge capacity from 150 to a maximum of 220 mAh/g. The electrode reaction of MnO2 with TiB2 in this aqueous electrolyte is shown to be lithium insertion while suppressing the proton insertion mechanism. This mechanism is confirmed using various techniques i.e. X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infra-red spectroscopy (FT-IR), Transmission electron microscopy (TEM) and Secondary ion mass spectrometry (SIMS) analysis on the discharged cathode material. The influence of the TiB2 additive on the performance of MnO2 as a cathode and its cycling ability has been determined.

Details

Title: Incorporation of TiB2 additive into MnO2 cathode and its influence on rechargeability in an aqueous battery system
Authors/Creators: M. Minakshi (Author/Creator) - Murdoch University
D.R.G. Mitchell (Author/Creator) - Australian Nuclear Science and Technology Organisation
K. Prince (Author/Creator) - Australian Nuclear Science and Technology Organisation
Publication Details: Solid State Ionics, Vol.179(9-10), pp.355-361
Publisher: Elsevier
Identifiers: 991005540646607891
Murdoch Affiliation: School of Chemical and Mathematical Science
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 2 Chemistry; 2.62 Electrochemistry; 2.62.52 Electrode Materials
Web Of Science research areas: Chemistry, Physical; Physics, Condensed Matter
ESI research areas: Physics