Lithium ion conductivity of A-site deficient perovskite solid solution La[sub 0. 67[minus]x]Li[sub 3x]TiO[sub 3]
Journal Article
·
· Journal of the Electrochemical Society; (United States)
- Science Univ. of Tokyo (Japan). Dept. of Industrial Chemistry
La[sub 0.67[minus]x]Li[sub 3x]TiO[sub 3] solid solution forms in the range [approximately]0.15 > x > [approximately]0.04 by the substitution mechanism La[r equilibrium]3Li. Superstructure reflections observed in this range are consistent with a superlattice consisting of the stacking of two perovskite subcells. A line-splitting phenomenon observed for x < [approximately]0.1 indicates that the tetragonal distortion of the cubic perovskite subcell occurs. The solid solutions exhibit high lithium ion conductivities greater than 10[sup [minus]4] S cm [sup [minus]1] at room temperature in a wide range, x > [approximately]0.04. A maximum conductivity of 1.1 [times] 10[sup [minus]3] S cm[sup [minus]1] is found at x [approx] 0.1. The dome-shaped composition dependence of conductivity indicates that the conduction mechanism involves the movement of lithium ions through the A-site vacancies.
- OSTI ID:
- 7023804
- Journal Information:
- Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 141:7; ISSN 0013-4651; ISSN JESOAN
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
ALKALI METALS
CHALCOGENIDES
CHEMISTRY
CRYSTAL STRUCTURE
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTROLYTES
ELEMENTS
IONIC CONDUCTIVITY
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LITHIUM
LITHIUM COMPOUNDS
LITHIUM OXIDES
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SOLID ELECTROLYTES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
ALKALI METALS
CHALCOGENIDES
CHEMISTRY
CRYSTAL STRUCTURE
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTROLYTES
ELEMENTS
IONIC CONDUCTIVITY
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LITHIUM
LITHIUM COMPOUNDS
LITHIUM OXIDES
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SOLID ELECTROLYTES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS