Electrochemical cell for use in high temperature metal-air battery
AssigneeGeneral Electric Company
InventorsRichard Louis Hart, Sergei Kniajanski, Joseph John Shiang, Alok Mani Srivastava
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Abstract
An electrochemical cell includes a bifunctional air cathode, an anode, and a ceramic electrolyte separator disposed substantially between the bifunctional air cathode and the anode. The anode includes a solid metal and an electrolyte configured to transition to a liquid phase in an operating temperature range. The electrolyte includes at least one of an alkali oxide, boron oxide, a carbonate, a phosphate, and a group III-X transition metal oxide.
Claims26
An electrochemical cell comprising:
- a bifunctional air cathode;
- an anode comprising:
- a solid metal;
- and
- an electrolyte configured to transition to a liquid phase in an operating temperature range, said electrolyte comprising at least one of:
- an alkali oxide;
- boron oxide;
- a carbonate;
- a phosphate;
- and
- a group III-X transition metal oxide;
- and
- a ceramic electrolyte separator disposed substantially between said bifunctional air cathode and said anode.
An electrochemical cell comprising:
- a tubular ceramic electrolyte separator comprising an inner surface and an outer surface;
- an anode disposed within said tubular ceramic electrolyte separator, said anode comprising:
- a solid metal;
- and
- an electrolyte configured to transition to a liquid phase in an operating temperature range, said electrolyte comprising at least one of:
- an alkali oxide;
- boron oxide;
- a carbonate;
- a phosphate;
- and
- a group III-X transition metal oxide;
- and
- a negative terminal disposed at least partially within said anode and extending out of said anode;
- and
- a bifunctional air cathode disposed at least partially about said outer surface of said tubular ceramic electrolyte separator.
A method for storing and generating electrical charge, said method comprising:
- coupling an electrochemical cell to a current source to charge the electrochemical cell, the electrochemical cell comprising:
- a bifunctional air cathode;
- an anode comprising:
- a solid metal;
- and
- an electrolyte configured to transition to a liquid phase in an operating temperature range, said electrolyte comprising at least one of:
- an alkali oxide;
- boron oxide;
- a carbonate;
- a phosphate;
- and
- a group III-X transition metal oxide;
- and
- a ceramic electrolyte separator disposed substantially between the ionically conductive cathode and the anode;
- and
- coupling the electrochemical cell to an electrical load to discharge the electrochemical cell.
Dependencies are inferred from the claim text.