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Title: Lithium-aluminum-magnesium electrode composition

Abstract

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.

Inventors:
 [1];  [2]
  1. (Bolingbrook, IL)
  2. (Downers Grove, IL)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
863242
Patent Number(s):
US 4130500
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-magnesium; electrode; composition; negative; secondary; high-temperature; electrochemical; cell; molten; salt; electrolyte; alkali; metal; halides; alkaline; earth; positive; including; chalcogen; chalcogenide; active; material; 50; atom; percent; lithium; constituent; magnesium-aluminum; alloy; structural; matrix; various; binary; ternary; intermetallic; phases; magnesium; aluminum; formed; charged; discharged; remains; substantially; free; alpha; lithium-aluminum; phase; exhibits; integrity; metallic phase; temperature electrochemical; atom percent; metal halides; active electrode; substantially free; positive electrode; negative electrode; alkali metal; electrochemical cell; molten salt; alkaline earth; metal halide; electrode material; earth metal; salt electrolyte; aluminum alloy; electrode composition; structural integrity; electrode including; metal chalcogenide; remains substantially; ternary intermetallic; intermetallic phase; intermetallic phases; high-temperature electrochemical; /252/420/429/

Citation Formats

Melendres, Carlos A., and Siegel, Stanley. Lithium-aluminum-magnesium electrode composition. United States: N. p., 1978. Web.
Melendres, Carlos A., & Siegel, Stanley. Lithium-aluminum-magnesium electrode composition. United States.
Melendres, Carlos A., and Siegel, Stanley. Sun . "Lithium-aluminum-magnesium electrode composition". United States. https://www.osti.gov/servlets/purl/863242.
@article{osti_863242,
title = {Lithium-aluminum-magnesium electrode composition},
author = {Melendres, Carlos A. and Siegel, Stanley},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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