Electrochemical cell

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:864984

Kaun, Thomas D ^[1]

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1. New Lenox, IL

An improved secondary electrochemical cell is disclosed having a negative electrode of lithium aluminum, a positive electrode of iron sulfide, a molten electrolyte of lithium chloride and potassium chloride, and the combination that the fully charged theoretical capacity of the negative electrode is in the range of 0.5-1.0 that of the positive electrode. The cell thus is negative electrode limiting during discharge cycling. Preferably, the negative electrode contains therein, in the approximate range of 1-10 volume % of the electrode, an additive from the materials of graphitized carbon, aluminum-iron alloy, and/or magnesium oxide.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4446212
• OSTI ID: 864984
• Country of Publication: United States
• Language: English

Related Subjects

electrochemical
cell
improved
secondary
disclosed
negative
electrode
lithium
aluminum
positive
iron
sulfide
molten
electrolyte
chloride
potassium
combination
charged
theoretical
capacity
range
5-1
limiting
discharge
cycling
preferably
contains
therein
approximate
1-10
volume
additive
materials
graphitized
carbon
aluminum-iron
alloy
magnesium
oxide
lithium chloride
approximate range
lithium aluminum
iron sulfide
secondary electrochemical
molten electrolyte
positive electrode
negative electrode
electrochemical cell
magnesium oxide
potassium chloride
graphitized carbon
discharge cycling
electrode contains
iron alloy
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