Electrochemical cell and method of assembly

Patent · Mon Jan 01 00:00:00 EST 1979

OSTI ID:863444

Shimotake, Hiroshi ^[1]; Voss, Ernst C. H. ^[2]; Bartholme, Louis G ^[3]

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1. Hinsdale, IL
2. Liederbach, DE
3. Joliet, IL

A method of preparing an electrochemical cell is disclosed which permits the assembly to be accomplished in air. The cell includes a metal sulfide as the positive electrode reactant, lithium alloy as the negative electrode reactant and an alkali metal, molten salt electrolyte. Positive electrode reactant is introduced as Li.sub.2 FeS.sub.2, a single-phase compound produced by the reaction of Li.sub.2 S and FeS. The use of this compound permits introduction of lithium in an oxidized form. Additional lithium can be introduced in the negative electrode structure enclosed within an aluminum foil envelope between layers of porous aluminum. Molten salt electrolyte is added after assembly and evacuation of the cell by including an interelectrode separator that has been prewet with an organic solution of KCl.

• 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 4172926
• OSTI ID: 863444
• Country of Publication: United States
• Language: English

Related Subjects

electrochemical
cell
method
assembly
preparing
disclosed
permits
accomplished
air
metal
sulfide
positive
electrode
reactant
lithium
alloy
negative
alkali
molten
salt
electrolyte
introduced
fes
single-phase
compound
produced
reaction
introduction
oxidized
form
additional
structure
enclosed
aluminum
foil
envelope
layers
porous
added
evacuation
including
interelectrode
separator
prewet
organic
solution
kcl
organic solution
electrode reactant
metal sulfide
electrode structure
positive electrode
negative electrode
alkali metal
electrochemical cell
molten salt
lithium alloy
salt electrolyte
interelectrode separator
aluminum foil
electrode separator
oxidized form
/429/29/