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Title: Electrochemical cell

An electrochemical cell with a positive electrode having an electrochemically active layer of at least one transition metal chloride. A negative electrode of an alkali metal and a compatible electrolyte including an alkali metal salt molten at cell operating temperature is included in the cell. The electrolyte is present at least partially as a corrugated .beta." alumina tube surrounding the negative electrode interior to the positive electrode. The ratio of the volume of liquid electrolyte to the volume of the positive electrode is in the range of from about 0.1 to about 3. A plurality of stacked electrochemical cells is disclosed each having a positive electrode, a negative electrode of an alkali metal molten at cell operating temperature, and a compatible electrolyte. The electrolyte is at least partially present as a corrugated .beta." alumina sheet separating the negative electrode and interior to the positive electrodes. The alkali metal is retained in a porous electrically conductive ceramic, and seals for sealing the junctures of the electrolyte and the adjacent electrodes at the peripheries thereof.
Inventors:
 [1];  [1];  [2];  [1]
  1. (Downers Grove, IL)
  2. (Naperville, IL)
Issue Date:
OSTI Identifier:
870493
Assignee:
University of Chicago (Chicago, IL) ANL
Patent Number(s):
US 5532078
Contract Number:
W-31109-ENG-38
Research Org:
Argonne National Laboratory (ANL), Argonne, IL
Country of Publication:
United States
Language:
English
Subject:
electrochemical; cell; positive; electrode; electrochemically; active; layer; transition; metal; chloride; negative; alkali; compatible; electrolyte; including; salt; molten; operating; temperature; included; partially; corrugated; beta; alumina; tube; surrounding; interior; ratio; volume; liquid; range; plurality; stacked; cells; disclosed; sheet; separating; electrodes; retained; porous; electrically; conductive; ceramic; seals; sealing; junctures; adjacent; peripheries; positive electrodes; tube surrounding; metal chloride; positive electrode; electrochemical cells; negative electrode; alkali metal; electrochemical cell; electrically conductive; transition metal; metal salt; operating temperature; active layer; electrolyte including; conductive ceramic; liquid electrolyte; porous electrically; electrochemically active; cell operating; salt molten; chemically active; adjacent electrodes; compatible electrolyte; /429/

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