Lithium--aluminum--iron electrode composition

Patent · Wed Dec 28 00:00:00 EST 1977

OSTI ID:6366748

Kaun, T D

A negative electrode composition is presented for use in a secondary electrochemical cell. The cell aslo includes an electrolyte with lithium ions such as a molten salt of alkali metal halides or alkaline earth metal halides that can be used in high-temperature cells. The positive electrode contains a chalcogen or a metal chalcogenide as the active electrode material. The negative electrode composition includes up to 50 atom percent lithium as the active electrode constituent in an alloy of aluminum--iron. Various binary and ternary intermetallic phases of lithium, aluminum, and iron are formed. The lithium within the intermetallic phase of Al/sub 5/Fe/sub 2/ exhibits increased activity over that of lithium within a lithium--aluminum alloy to provide an increased cell potential of up to abount 0.25 volt. 2 figures.

• Assignee: Department of Energy
• OSTI ID: 6366748
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
CHEMICAL PREPARATION
IRON ALLOYS
LITHIUM ALLOYS
LITHIUM-SULFUR BATTERIES
ANODES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CORROSION RESISTANCE
ELECTROMOTIVE FORCE
HALIDES
HIGH TEMPERATURE
INTERMETALLIC COMPOUNDS
LITHIUM COMPOUNDS
OXYGEN
SULFUR
TERNARY ALLOY SYSTEMS
ALLOY SYSTEMS
ALLOYS
CRYOGENIC FLUIDS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
ENERGY STORAGE SYSTEMS
FLUIDS
HALOGEN COMPOUNDS
METAL-NONMETAL BATTERIES
NONMETALS
SYNTHESIS
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries
360101 - Metals & Alloys- Preparation & Fabrication