Calcium alloy as active material in secondary electrochemical cell

Patent · Wed Dec 31 23:00:00 EST 1975

OSTI ID:862639

Roche, Michael F ^[1]; Preto, Sandra K ^[2]; Martin, Allan E ^[3]

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1. Lombard, IL
2. Stickney, IL
3. Woodridge, IL

Calcium alloys such as calcium-aluminum and calcium-silicon, are employed as active material within a rechargeable negative electrode of an electrochemical cell. Such cells can use a molten salt electrolyte including calcium ions and a positive electrode having sulfur, sulfides, or oxides as active material. The calcium alloy is selected to prevent formation of molten calcium alloys resulting from reaction with the selected molten electrolytic salt at the cell operating temperatures.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 3980495
• OSTI ID: 862639
• Country of Publication: United States
• Language: English

Related Subjects

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active
active material
alloy
alloys
calcium
calcium alloy
calcium-aluminum
calcium-silicon
cell
cell operating
cells
electrochemical
electrochemical cell
electrode
electrolyte
electrolyte including
electrolytic
electrolytic salt
employed
formation
including
material
molten
molten electrolytic
molten salt
negative
negative electrode
operating
operating temperature
operating temperatures
oxides
positive
positive electrode
prevent
prevent formation
reaction
rechargeable
resulting
salt
salt electrolyte
secondary
secondary electrochemical
selected
sulfides
sulfur
temperatures