Ionic conductivity of the lithium titanium phosphate (Li/sub 1+x/M/sub x/Ti/sub 2-x/(PO/sub 4/)/sub 3/, M=Al, Sc, Y, and La) systems
Journal Article
·
· J. Electrochem. Soc.; (United States)
High lithium ionic conductivity was obtained in Li/sub 1+X/M/sub X/Ti/sub 2-X/(PO/sub 4/)/sub 3/ (M=Al, Sc, Y, and La) systems. Lithium titanium phosphate, LiTi/sub 2/(PO/sub 4/)/sub 3/, is composed of both TiO/sub 6/ octahedra and PO/sub 4/ tetrahedra, which are linked by corners to form a three dimensional network, with a space group R3-barC. Some workers have already described that the conductivity increased considerably if Ti/sup 4+/ in LiTi/sub 2/(PO/sub 4/)/sub 3/ was substituted by slightly larger cations such as Ga/sup 3+/(1),Sc/sup 3+/(2), and In/sup 3+/(3,4). These results are similar to each other because of their close ionic radii. In this communication, substitution effects of Ti/sup 4+/ in LiTi/sub 2/(PO/sub 4/)/sub 3/ by various ions (Al/sup 3+/, Sc/sup 3+/, Y/sup 3+/, and La/sup 3+/) on their conductivities are reported.
- Research Organization:
- Dept. of Industrial Chemistry, Niihama National College of Technology, Ehime (JP); Dept. of Industrial Chemistry, Ehime Univ., Ehime (JP); Dept. of Industrial Chemistry, Osaka Univ., Osaka (JP)
- OSTI ID:
- 6001656
- Journal Information:
- J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 136:2; ISSN JESOA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
30 DIRECT ENERGY CONVERSION
300503 -- Fuel Cells-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
ALKALI METAL COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRODES
ELECTROLYTES
IONIC CONDUCTIVITY
IONS
LANTHANUM IONS
LITHIUM COMPOUNDS
LITHIUM PHOSPHATES
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
SAMPLING
SOLID ELECTROLYTES
STOICHIOMETRY
TITANIUM COMPOUNDS
TITANIUM OXIDES
TITANIUM PHOSPHATES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM IONS
300503 -- Fuel Cells-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
ALKALI METAL COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRODES
ELECTROLYTES
IONIC CONDUCTIVITY
IONS
LANTHANUM IONS
LITHIUM COMPOUNDS
LITHIUM PHOSPHATES
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
SAMPLING
SOLID ELECTROLYTES
STOICHIOMETRY
TITANIUM COMPOUNDS
TITANIUM OXIDES
TITANIUM PHOSPHATES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM IONS