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Title: Uncharged positive electrode composition

Abstract

An uncharged positive-electrode composition contains particulate lithium sulfide, another alkali metal or alkaline earth metal compound other than sulfide, e.g., lithium carbide, and a transition metal powder. The composition along with a binder, such as electrolytic salt or a thermosetting resin is applied onto an electrically conductive substrate to form a plaque. The plaque is assembled as a positive electrode within an electrochemical cell opposite to a negative electrode containing a material such as aluminum or silicon for alloying with lithium. During charging, lithium alloy is formed within the negative electrode and transition metal sulfide such as iron sulfide is produced within the positive electrode. Excess negative electrode capacity over that from the transition metal sulfide is provided due to the electrochemical reaction of the other than sulfide alkali metal or alkaline earth metal compound.

Inventors:
 [1];  [2];  [3]
  1. (Lisle, IL)
  2. (Naperville, IL)
  3. (Hinsdale, IL)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
862781
Patent Number(s):
US 4011373
Assignee:
United States of America as represented by United States Energy (Washington, DC) ANL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
uncharged; positive; electrode; composition; positive-electrode; contains; particulate; lithium; sulfide; alkali; metal; alkaline; earth; compound; carbide; transition; powder; binder; electrolytic; salt; thermosetting; resin; applied; electrically; conductive; substrate; form; plaque; assembled; electrochemical; cell; opposite; negative; containing; material; aluminum; silicon; alloying; charging; alloy; formed; iron; produced; excess; capacity; provided; due; reaction; composition contains; electrolytic salt; iron sulfide; conductive substrate; thermosetting resin; metal sulfide; metal compound; positive electrode; negative electrode; alkali metal; electrochemical cell; electrically conductive; alkaline earth; transition metal; chemical reaction; earth metal; lithium alloy; electrode composition; metal powder; electrochemical reaction; electrode containing; lithium sulfide; particulate lithium; charged positive; uncharged positive; /429/

Citation Formats

Kaun, Thomas D., Vissers, Donald R., and Shimotake, Hiroshi. Uncharged positive electrode composition. United States: N. p., 1977. Web.
Kaun, Thomas D., Vissers, Donald R., & Shimotake, Hiroshi. Uncharged positive electrode composition. United States.
Kaun, Thomas D., Vissers, Donald R., and Shimotake, Hiroshi. Tue . "Uncharged positive electrode composition". United States. https://www.osti.gov/servlets/purl/862781.
@article{osti_862781,
title = {Uncharged positive electrode composition},
author = {Kaun, Thomas D. and Vissers, Donald R. and Shimotake, Hiroshi},
abstractNote = {An uncharged positive-electrode composition contains particulate lithium sulfide, another alkali metal or alkaline earth metal compound other than sulfide, e.g., lithium carbide, and a transition metal powder. The composition along with a binder, such as electrolytic salt or a thermosetting resin is applied onto an electrically conductive substrate to form a plaque. The plaque is assembled as a positive electrode within an electrochemical cell opposite to a negative electrode containing a material such as aluminum or silicon for alloying with lithium. During charging, lithium alloy is formed within the negative electrode and transition metal sulfide such as iron sulfide is produced within the positive electrode. Excess negative electrode capacity over that from the transition metal sulfide is provided due to the electrochemical reaction of the other than sulfide alkali metal or alkaline earth metal compound.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {3}
}

Patent:

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