High rate and high energy density cell
AssigneeThe Dow Chemical Company
InventorRonald J. Hoffman
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Abstract
An electric current producing primary electrochemical cell having an aqueous electrolyte, an alkaline earth metal anode, and a cathode capable of intercalating ions of the anode metal. The cell operates at an ambient temperature of about 20.degree. C. to about 100.degree. C. at a pH of about 1 to about 5 and exists in a dry (unactivated) state until needed. Activation is initiated by the addition of the electrolyte.
Claims14
In an electric current producing primary electrochemical cell containing an alkaline earth metal anode active material, a cathode, and an aqueous electrolyte containing an ionizable salt, the improvement comprising using a cathode active material capable of intercalating ions of said anode active material and an aqueous electrolyte having a pH of about 1 to about 5 and essentially nonreactive with said cathode.
A process for producing electric current at a high rate with high energy density at ambient temperature in a primary electrochemical cell comprising an alkaline earth metal anode active material;
- a cathode active material capable of intercalating ions of said anode active material, and an aqueous electrolyte comprising an ionizable salt, said process comprising:
- operating said cell at pH of about 1 to about 5, at a temperature of about 20.degree. C. to 100.degree. C., and wherein said cell exists in a dry or unactivated state until needed;
- activation being initiated by the addition of said electrolyte.
Dependencies are inferred from the claim text.