Synthesis and characterisation of the garnet-related Li ion conductor, Li{sub 5}Nd{sub 3}Sb{sub 2}O{sub 12}

Journal Article · Tue Mar 04 04:00:00 EST 2008 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2007.04.002· OSTI ID:21068229

Percival, J; Kendrick, E ^[1]

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1. Department of Chemistry, University of Surrey, Guildford, Surrey GU2 7XH (United Kingdom)

In this paper the synthesis, conductivity, and structure of the garnet-related Li ion conductor, Li{sub 5}Nd{sub 3}Sb{sub 2}O{sub 12}, are reported. As for the related Li{sub 5}La{sub 3}M{sub 2}O{sub 12} (M = Nb, Ta) materials, this phase shows high Li ion conductivity, with a conductivity at 300 deg. C of 9.2 x 10{sup -3} S cm{sup -1}. Structural studies using neutron diffraction indicate a cubic unit cell, space group Ia-3d, with Li located in two partially occupied sites. One of the sites is the traditional garnet structure tetrahedral site, while the other Li site is considerably more distorted. Although the latter is nominally a six coordinate site, a close inspection suggests that the coordination could be described as distorted tetrahedral, with the remaining two bonds being significantly longer ({approx}2.6 A)

• OSTI ID: 21068229
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 3 Vol. 43; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIMONY COMPOUNDS
CRYSTAL STRUCTURE
GARNETS
IONIC CONDUCTIVITY
LITHIUM COMPOUNDS
LITHIUM IONS
NEODYMIUM COMPOUNDS
NEUTRON DIFFRACTION
OXIDES
SPACE GROUPS
SYNTHESIS