A new low-melting-point electrolyte LiNO/sub 3/-KNO/sub 3/-CsNO/sub 3/ for use in intermediate temperature lithium cells

Conference · Sat Oct 01 00:00:00 EDT 1983 · Proc. - Electrochem. Soc.; (United States)

OSTI ID:6502144

Wang, J; Huggins, R A

Molten salts in the LiNO/sub 3/-KNO/sub 3/ system can be used in lithium-based electrochemical cells. They are stable in the presence of elemental lithium and high lithium activity alloys due to the formation of a protective lithium oxide solid electrolyte layer. Their thermodynamic properties allow their use with reversible positive electrodes with potentials between 2.5 and 4.3 V with respect to lithium. This paper reports the possibility of reducing the melting point so that such systems by the introduction of a third component. A ternary eutectic has been found in the LiNO/sub 3/-KNO/sub 3/-CsNO/sub 3/ system that melts at 96 + or - 2/sup 0/C. This composition, 35.2-39.8-25.0 m/o, is also stable in the presence of elemental lithium, indicating the formation of a lithium oxide layer. Experiments will be reported on the electrochemical stability range of this low temperature eutectic composition, as well as on the use of lithium cobalt oxides as reversible positive electrode materials in electrochemical cells employing it as an electrolyte.

• Research Organization: Dept. of Materials Science and Engineering, Stanford Univ., Stanford, CA
• OSTI ID: 6502144
• Report Number(s): CONF-831086-
• Journal Information: Proc. - Electrochem. Soc.; (United States), Vol. 84-4; Conference: Electrochemical Society fall meeting, Washington, DC, USA, 9 Oct 1983
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
CESIUM NITRATES
MELTING POINTS
ELECTROLYTES
CHEMICAL COMPOSITION
PHASE STABILITY
LITHIUM NITRATES
METAL-NONMETAL BATTERIES
POTASSIUM NITRATES
ELECTROCHEMISTRY
LITHIUM ALLOYS
QUANTITY RATIO
TERNARY ALLOY SYSTEMS
ALKALI METAL COMPOUNDS
ALLOY SYSTEMS
ALLOYS
CESIUM COMPOUNDS
CHEMISTRY
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
LITHIUM COMPOUNDS
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
STABILITY
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries