Conductivity of the LiBF/sub 4//mixed ether electrolytes for secondary lithium cells

Journal Article · Sat Dec 01 04:00:00 EST 1984 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2115416· OSTI ID:5728672

Matsuda, Y; Morita, M; Yamashita, T

Electrolytic conductivity of LiBF/sub 4/ has been studied in the mixed system of 1,3-dioxolane with 1,2-dimethoxyethane or with tetrahydrofuran. Relative permittivity (dielectric constant) of the solvents suggested the formation of associated ion pairs in the systems, but the conductivity measured was higher than that expected from the viewpoint of ionic association. Conductivity maxima were observed in the solutions containing about 1:1 (by volume) mixed solvents. Viscosities of the solvent and the solution were also measured, and their contribution to the conductivit change with the solvent composition was discussed. Solute concentration dependence of the molar conductivity was specific for the ether solutions. Apparent activation energy for conduction, which was determined by the temperature dependence of the conductivity, varied with LiBF/sub 4/ concentration. Structural specificity of the mixed ether solutions was discussed with these parameters and /sup 1/H NMR spectra of the solutions.

• Research Organization: Department of Industrial Chemistry, Faculty of Engineering, Yamaguchi University, Tokiwa-dai, Ube,
• OSTI ID: 5728672
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 131:12; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
ACTIVATION ENERGY
ALKALI METAL COMPOUNDS
ALKANES
BORON COMPOUNDS
BORON FLUORIDES
CHEMICAL COMPOSITION
CHEMISTRY
DIOXANE
ELECTRIC BATTERIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTROLYTES
ENERGY
ETHANE
ETHERS
FLUORIDES
FLUORINE COMPOUNDS
FURANS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
MAGNETIC RESONANCE
METAL-GAS BATTERIES
NUCLEAR MAGNETIC RESONANCE
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PERMITTIVITY
PHYSICAL PROPERTIES
RESONANCE
TEMPERATURE DEPENDENCE
TETRAHYDROFURAN
VISCOSITY