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Title: Method of preparing a positive electrode for an electrochemical cell

Abstract

A method of preparing an electrochemical cell including a metal sulfide as the positive electrode reactant and lithium alloy as the negative electrochemical reactant with an alkali metal, molten salt electrolyte is disclosed which permits the assembly to be accomplished in air. The electrode reactants are introduced in the most part as a sulfide of lithium and the positive electrode metal in a single-phase compound. For instance, Li.sub.2 FeS.sub.2 is a single-phase compound that is produced by the reaction of Li.sub.2 S and FeS. This compound is an intermediate in the positive electrode cycle from FeS.sub.2 to Fe and Li.sub.2 S. Its use minimizes volumetric changes from the assembled to the charged and discharged conditions of the electrode and minimizes electrode material interaction with air and moisture during assembly.

Inventors:
 [1]
  1. Orland Park, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
863407
Patent Number(s):
4164069
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; preparing; positive; electrode; electrochemical; cell; including; metal; sulfide; reactant; lithium; alloy; negative; alkali; molten; salt; electrolyte; disclosed; permits; assembly; accomplished; air; reactants; introduced; single-phase; compound; instance; fes; produced; reaction; intermediate; cycle; minimizes; volumetric; changes; assembled; charged; discharged; conditions; material; interaction; moisture; electrode reactant; cell including; metal sulfide; positive electrode; alkali metal; electrochemical cell; molten salt; electrode material; lithium alloy; salt electrolyte; electrode metal; charged condition; electrode reactants; /29/252/423/429/

Citation Formats

Tomczuk, Zygmunt. Method of preparing a positive electrode for an electrochemical cell. United States: N. p., 1979. Web.
Tomczuk, Zygmunt. Method of preparing a positive electrode for an electrochemical cell. United States.
Tomczuk, Zygmunt. Mon . "Method of preparing a positive electrode for an electrochemical cell". United States. https://www.osti.gov/servlets/purl/863407.
@article{osti_863407,
title = {Method of preparing a positive electrode for an electrochemical cell},
author = {Tomczuk, Zygmunt},
abstractNote = {A method of preparing an electrochemical cell including a metal sulfide as the positive electrode reactant and lithium alloy as the negative electrochemical reactant with an alkali metal, molten salt electrolyte is disclosed which permits the assembly to be accomplished in air. The electrode reactants are introduced in the most part as a sulfide of lithium and the positive electrode metal in a single-phase compound. For instance, Li.sub.2 FeS.sub.2 is a single-phase compound that is produced by the reaction of Li.sub.2 S and FeS. This compound is an intermediate in the positive electrode cycle from FeS.sub.2 to Fe and Li.sub.2 S. Its use minimizes volumetric changes from the assembled to the charged and discharged conditions of the electrode and minimizes electrode material interaction with air and moisture during assembly.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

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