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Title: Method of preparing an electrochemical cell in uncharged state

Abstract

A secondary electrochemical cell is assembled in an uncharged state for the preparation of a lithium alloy-transition metal sulfide cell. The negative electrode includes a material such as aluminum or silicon for alloying with lithium as the cell is charged. The positive electrode is prepared by blending particulate lithium sulfide, transition metal powder and electrolytic salt in solid phase. The mixture is simultaneously heated to a temperature in excess of the melting point of the electrolyte and pressed onto an electrically conductive substrate to form a plaque. The plaque is assembled as a positive electrode within the cell. During the first charge cycle lithium alloy is formed within the negative electrode and transition metal sulfide such as iron sulfide is produced within the positive electrode.

Inventors:
 [1];  [2];  [3]
  1. Hinsdale, IL
  2. Joliet, IL
  3. Naperville, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
862758
Patent Number(s):
4006034
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; preparing; electrochemical; cell; uncharged; secondary; assembled; preparation; lithium; alloy-transition; metal; sulfide; negative; electrode; material; aluminum; silicon; alloying; charged; positive; prepared; blending; particulate; transition; powder; electrolytic; salt; solid; phase; mixture; simultaneously; heated; temperature; excess; melting; electrolyte; pressed; electrically; conductive; substrate; form; plaque; charge; cycle; alloy; formed; iron; produced; electrolytic salt; iron sulfide; conductive substrate; metal sulfide; secondary electrochemical; positive electrode; negative electrode; electrochemical cell; electrically conductive; transition metal; lithium alloy; solid phase; metal powder; lithium sulfide; charge cycle; sulfide cell; particulate lithium; /29/429/

Citation Formats

Shimotake, Hiroshi, Bartholme, Louis G, and Arntzen, John D. Method of preparing an electrochemical cell in uncharged state. United States: N. p., 1977. Web.
Shimotake, Hiroshi, Bartholme, Louis G, & Arntzen, John D. Method of preparing an electrochemical cell in uncharged state. United States.
Shimotake, Hiroshi, Bartholme, Louis G, and Arntzen, John D. Tue . "Method of preparing an electrochemical cell in uncharged state". United States. https://www.osti.gov/servlets/purl/862758.
@article{osti_862758,
title = {Method of preparing an electrochemical cell in uncharged state},
author = {Shimotake, Hiroshi and Bartholme, Louis G and Arntzen, John D},
abstractNote = {A secondary electrochemical cell is assembled in an uncharged state for the preparation of a lithium alloy-transition metal sulfide cell. The negative electrode includes a material such as aluminum or silicon for alloying with lithium as the cell is charged. The positive electrode is prepared by blending particulate lithium sulfide, transition metal powder and electrolytic salt in solid phase. The mixture is simultaneously heated to a temperature in excess of the melting point of the electrolyte and pressed onto an electrically conductive substrate to form a plaque. The plaque is assembled as a positive electrode within the cell. During the first charge cycle lithium alloy is formed within the negative electrode and transition metal sulfide such as iron sulfide is produced within the positive electrode.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {2}
}

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