Lithium-ion-conducting solid electrolytes in the Li/sub 4/GeO/sub 4/-Li/sub 2/SeO/sub 4/ system

Journal Article · Sat Feb 01 00:00:00 EST 1986 · Sov. Electrochem. (Engl. Transl.); (United States)

OSTI ID:5457636

Burmakin, E I; Alikin, V N; Stepanov, G K

The authors studied the Li/sub 4/GeO/sub 4/-Li/sub 2/SeO/sub 4/ system as a continuation of an earlier investigation of solid electrolytes on the basis of lithium orthogermanate. The solid electrolytes were synthesized by sintering samples which had been pressed from a mixture of highly disperse powders of Li/sub 2/SeO/sub 4/ and Li/sub 4/GeO/sub 4/. The x-ray phase analysis was performed with a DRON-2 diffractometer in Cu Kalpha-radiation with a nickel filter. Electric resistance was measured with an R502 ac bridge using silver electrodes that had been applied thermochemically with a paste based on silver carbonate. The lowest values of specific resistance are seen near the lower limit of the single-phase region of P-solid solutions. This is in accord with the decisive influence of the concentration of highly mobile carriers (the interstitial lithium ions) on the transport properties of structures similar to gamma-Li/sub 3/PO/sub 4/. The number of interstitial lithium ions increases with decreasing x, and will be highest at the lower limit of the region of existence of P-solid solutions.

• Research Organization: Institute of Electrochemistry, Ural Science Center, Suerdlovsk
• OSTI ID: 5457636
• Journal Information: Sov. Electrochem. (Engl. Transl.); (United States), Vol. 21:8
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
LITHIUM COMPOUNDS
IONIC CONDUCTIVITY
SOLID ELECTROLYTES
ACTIVATION ENERGY
CARRIER DENSITY
CHARGE TRANSPORT
CHEMICAL COMPOSITION
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
GERMANATES
METALLURGICAL EFFECTS
SELENATES
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION
ALKALI METAL COMPOUNDS
COHERENT SCATTERING
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROLYTES
ENERGY
GERMANIUM COMPOUNDS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SCATTERING
SELENIUM COMPOUNDS
400400* - Electrochemistry