Lithium--aluminum--magnesium electrode composition

Patent · Tue Dec 19 04:00:00 EST 1978

OSTI ID:6236596

Melendres, C A; Siegel, S

A negative electrode composition is presented for use in a secondary, high-temperature electrochemical cell. The cell also includes a molten salt electrolyte of alkali metal halides or alkaline earth metal halides and a positive electrode including 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 and a magnesium--aluminum alloy as a structural matrix. Various binary and ternary intermetallic phases of lithium, magnesium, and aluminum are formed, but the electrode composition in both its charged and discharged state remains substantially free of the alpha lithium--aluminum phase and exhibits good structural integrity. 5 figures, 1 table.

• Assignee: Dept. of Energy
• Patent Number(s): US 4130500
• OSTI ID: 6236596
• 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
ALKALI METAL COMPOUNDS
ALLOY SYSTEMS
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM BASE ALLOYS
ANODES
BROMIDES
BROMINE COMPOUNDS
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ENERGY STORAGE SYSTEMS
FABRICATION
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HIGH TEMPERATURE
INTERMETALLIC COMPOUNDS
IRON COMPOUNDS
IRON SULFIDES
LITHIUM ALLOYS
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
LITHIUM-SULFUR BATTERIES
MAGNESIUM ALLOYS
METAL-NONMETAL BATTERIES
PERFORMANCE
POTASSIUM BROMIDES
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
TERNARY ALLOY SYSTEMS
TRANSITION ELEMENT COMPOUNDS