skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Lithium-aluminum-iron electrode composition

Abstract

A negative electrode composition is presented for use in a secondary electrochemical cell. The cell also 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 cell's positive electrode contains a 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 about 0.25 volt.

Inventors:
 [1]
  1. (Mokena, IL)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
863376
Patent Number(s):
US 4158720
Assignee:
United States of America as represented by United States (Washington, DC) ANL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
lithium-aluminum-iron; electrode; composition; negative; secondary; electrochemical; cell; electrolyte; lithium; molten; salt; alkali; metal; halides; alkaline; earth; high-temperature; cells; positive; contains; chalcogen; chalcogenide; active; material; 50; atom; percent; constituent; alloy; aluminum-iron; various; binary; ternary; intermetallic; phases; aluminum; iron; formed; phase; exhibits; increased; activity; lithium-aluminum; provide; potential; 25; volt; metallic phase; lithium-aluminum alloy; atom percent; metal halides; active electrode; secondary electrochemical; positive electrode; negative electrode; alkali metal; electrochemical cell; molten salt; alkaline earth; metal halide; electrode material; earth metal; aluminum alloy; electrode composition; metal chalcogenide; ternary intermetallic; high-temperature cells; intermetallic phase; cell potential; electrode contains; increased activity; intermetallic phases; exhibits increased; temperature cells; /428/204/205/252/419/420/429/

Citation Formats

Kaun, Thomas D. Lithium-aluminum-iron electrode composition. United States: N. p., 1979. Web.
Kaun, Thomas D. Lithium-aluminum-iron electrode composition. United States.
Kaun, Thomas D. Mon . "Lithium-aluminum-iron electrode composition". United States. https://www.osti.gov/servlets/purl/863376.
@article{osti_863376,
title = {Lithium-aluminum-iron electrode composition},
author = {Kaun, Thomas D.},
abstractNote = {A negative electrode composition is presented for use in a secondary electrochemical cell. The cell also 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 cell's positive electrode contains a 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 about 0.25 volt.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

Save / Share: