Method of preparing a positive electrode for an electrochemical cell

Patent · Mon Jan 01 00:00:00 EST 1979

OSTI ID:863407

Tomczuk, Zygmunt ^[1]

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1. Orland Park, IL

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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4164069
• OSTI ID: 863407
• Country of Publication: United States
• Language: English

Related Subjects

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/