Cathode composition for electrochemical cell
AssigneeThe United States of America as represented by the United States Energy Research and Development Administration
InventorsRobert K. Steunenberg, Allan E. Martin, Zygmunt Tomczuk
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Abstract
A high-temperature, secondary electrochemical cell includes a negative electrode containing an alkali metal such as lithium, an electrolyte of molten salt containing ions of that alkali metal and a positive electrode containing a mixture of metallic sulfides. The positive electrode composition is contained within a porous structure that permits permeation of molten electrolyte and includes a mixture of about 5% to 30% by weight Cu.sub.2 S in FeS.
Claims7
In a secondary, high-temperature electrochemical cell including an alkali metal reactant in the anode, a cathode reactant composition including a chalcogen compound in the cathode and an electrolyte containing ions of said alkali metal, the improvement wherein said cathode reactant composition comprises a mixture of a major proportion by weight FeS and a minor proportion by weight Cu.sub.2 S.
Dependencies are inferred from the claim text.