Structural characteristics of olivine Li(Mg0.5Ni0.5)PO4 via TEM analysis

M. Minakshi; P. Singh; D. Ralph; D. Appadoo; M. Blackford; M. Ionescu

doi:10.1007/s11581-011-0661-0

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Structural characteristics of olivine Li(Mg0.5Ni0.5)PO4 via TEM analysis

Journal article

Peer reviewed

Structural characteristics of olivine Li(Mg0.5Ni0.5)PO4 via TEM analysis

M. Minakshi, P. Singh, D. Ralph, D. Appadoo, M. Blackford and M. Ionescu

Ionics, Vol.18(6), pp.583-590

2012

DOI: https://doi.org/10.1007/s11581-011-0661-0

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Abstract

The structural characteristics of olivine-type lithium orthophosphate Li(Mg 0.5Ni 0.5)PO 4 synthesized via solid-state reaction have been studied using X-ray diffraction, ion beam technique, scanning electron microscopy, infrared spectroscopy, transmission electron microscopy and energy dispersive X-ray analysis. The parent LiNiPO 4 compound can be synthesized in olivine structure without any evidence of secondary phases as impurities. The structural quality of the parent LiNiPO 4 in the absence of secondary component phases resulted in the formation of hexagonal closed packed structure. The olivine analogue compound containing mixed M (M = Mg, Ni) cations, Li(Mg 0.5Ni 0.5)PO 4 contained Li 3PO 4 as a second phase upon synthesis, however a carbothermal reduction method produced a single-phase compound. The redox behaviour of carbon-coated Li(Mg 0.5Ni 0.5)PO 4 cathode in aqueous lithium hydroxide as the electrolyte showed reversible lithium intercalation.

Details

Title: Structural characteristics of olivine Li(Mg0.5Ni0.5)PO4 via TEM analysis
Authors/Creators: M. Minakshi (Author/Creator) - Murdoch University
P. Singh (Author/Creator) - Murdoch University
D. Ralph (Author/Creator) - Murdoch University
D. Appadoo (Author/Creator)
M. Blackford (Author/Creator) - Australian Nuclear Science and Technology Organisation
M. Ionescu (Author/Creator) - Australian Nuclear Science and Technology Organisation
Publication Details: Ionics, Vol.18(6), pp.583-590
Publisher: Institute for Ionics
Identifiers: 991005541494307891
Copyright: © 2012 Springer-Verlag
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; 2.62.138 Lithium-Ion Battery
Web Of Science research areas: Chemistry, Physical; Electrochemistry; Physics, Condensed Matter
ESI research areas: Physics