Solid-state cathode materials for lithium batteries: Effect of synthesis temperature on the physical and electrochemical properties of silver vanadium oxide

Journal Article · Sat May 01 04:00:00 EDT 1993 · Chemistry of Materials; (United States)

DOI:https://doi.org/10.1021/cm00029a029· OSTI ID:6164910

Leising, R A; Takeuchi, E S ^[1]

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1. Wilson Greatbatch Ltd., Clarence, NY (United States)

Silver vanadium oxide (SVO, AgV[sub 2]O[sub 5.5]) was synthesized for use as a cathode material in lithium/SVO batteries. The material was prepared via a solid-state thermal reaction of silver nitrate and vanadium pentoxide in the presence of air. The surface morphology of the final product was found to be dependent on the temperature of synthesis of the material, as evidenced by SEM analysis of the samples. SVO synthesized at 320 and 375[degrees]C displayed irregularly shaped particles, while material prepared at 450[degrees]C was needlelike. SVO synthesized at 540[degrees]C appeared to be a mixture of large crystalline plates and irregular particles. All of the samples were analyzed by DSC, chemical analysis, X-ray powder diffraction, resistivity measurements, and constant-resistance discharge of Li/SVO test cells. The experimental capacities of the lower temperature materials (320,375[degrees]C) were similar to that found for SVO prepared at 450[degrees]C. A significant decrease in delivered capacity was noted when the SVO prepared at 540[degrees]C was used as a cathode material. 30 refs., 5 figs., 5 tabs.

• OSTI ID: 6164910
• Journal Information: Chemistry of Materials; (United States), Journal Name: Chemistry of Materials; (United States) Vol. 5:5; ISSN CMATEX; ISSN 0897-4756
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
CATHODES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMISTRY
COHERENT SCATTERING
DIFFRACTION
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYTIC CELLS
ELECTRON MICROSCOPY
MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCANNING ELECTRON MICROSCOPY
SCATTERING
SILVER COMPOUNDS
SILVER OXIDES
STRUCTURAL CHEMICAL ANALYSIS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES
X-RAY DIFFRACTION