Rechargeable metal halide battery with intercalation anode
AssigneeInternational Business Machines Corporation
InventorsJangwoo Kim, Andy Theodora Tek
Life of this patent
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Abstract
A metal halide battery includes an intercalation anode, a cathode that includes a metal halide incorporated into an electrically conductive material, an oxidizing gas, and an electrolyte in contact with the intercalation anode, the cathode, and the oxidizing gas. The battery has a cycle life reaching 1000 cycles at a current density that enables the battery to charge within 10-15 minutes. Electrolytes that may be used in the metal halide batteries include (i) carbonate ester-based compounds with at least one ethyl group and an ion-conducting salt and/or (ii) at least one cyclic ester compound.
Claims47
A battery, comprising:
- an intercalation anode;
- a cathode comprising a metal halide incorporated into an electrically conductive material;
- an oxidizing gas;
- and
- an electrolyte in contact with the intercalation anode, the cathode, and the oxidizing gas.
A battery, comprising:
- an intercalation anode;
- a cathode comprising a metal halide incorporated into an electrically conductive material;
- an oxidizing gas;
- and
- an electrolyte comprising (i) a carbonate ester-based compound with at least one ethyl group and (ii) an ion-conducting salt comprising a metal cation [M]+ and an anion [X]− having a chemical formula of [M]+[X]−,
- wherein the electrolyte is in contact with the intercalation anode, the cathode, and the oxidizing gas.
A battery, comprising:
- an intercalation anode selected from the group consisting of graphite, graphene, reduced graphene oxide (RGO), silicon, silicon alloys, silicon-carbon composites, carbon nanotubes, fullerenes, titanium dioxide (TiO2), titanium disulfide (TiS2), molybdenum dioxide (MoO2), molybdenum trioxide (MoO3), molybdenum disulfide (MoS2), and combinations thereof;
- a cathode comprising a metal halide incorporated into an electrically conductive material, wherein the metal halide comprises (i) a metal ion selected from the group consisting of Li+, Mg+, Zn+, Al+, Na+, and combinations thereof;
- and (ii) a halide ion selected from the group consisting of I−, Br−, Cl−, F−, and combinations thereof;
- an oxidizing gas;
- and
- an electrolyte comprising at least one cyclic ester compound,
- wherein the electrolyte is in contact with the intercalation anode, the cathode, and the oxidizing gas.
A method of forming a battery comprising:
- forming a battery stack comprising an intercalation anode, a metal halide cathode in an electrically conductive material, a separator positioned between the intercalation anode and the electrically conductive material of the metal halide cathode, and an electrolyte comprising (i) a carbonate ester-based compound with at least one ethyl group and (ii) an ion-conducting salt comprising a metal cation [M]+ and an anion [X]− having a chemical formula of [M]+[X]−,
- wherein an oxidizing gas is introduced into the battery stack and the electrolyte is in contact with the intercalation anode, the metal halide cathode, and the oxidizing gas.
A method of forming a battery comprising:
- forming a battery stack comprising an intercalation anode, a metal halide cathode in an electrically conductive material, a separator positioned between the intercalation anode and the electrically conductive material of the metal halide cathode, and an electrolyte comprising at least one cyclic ester compound,
- wherein an oxidizing gas is introduced into the battery stack and the electrolyte is in contact with the intercalation anode, the metal halide cathode, and the oxidizing gas.
Dependencies are inferred from the claim text.