Secondary Zinc-Manganese Dioxide Batteries for High Power Applications
OwnerNilesh INGALE, Tal SHOLKLAPPERinventors
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Abstract
In an embodiment, a secondary Zn—MnO2 battery comprises a battery housing, a MnO2 cathode, a Zn anode, and an electrolyte solution. The MnO2 cathode, the Zn anode, and the electrolyte solution are disposed within the battery housing, and the MnO2 cathode comprises a MnO2 cathode mixture and a current collector. The MnO2 cathode mixture is in electrical contact with at least a portion of an outer surface of the current collector, and the MnO2 cathode has a porosity of from about 5 vol. % to about 90 vol. %, based on the total volume of the MnO2 cathode mixture of the MnO2 cathode.
Claims32
A secondary Zn—MnO2 battery comprising:
- a battery housing;
- a MnO2 cathode;
- a Zn anode;
- and
- an electrolyte solution,
- wherein the MnO2 cathode, the Zn anode, and the electrolyte solution are disposed within the battery housing,
- wherein the MnO2 cathode comprises a MnO2 cathode mixture and a current collector,
- wherein the MnO2 cathode mixture is in electrical contact with at least a portion of an outer surface of the current collector, and
- wherein the MnO2 cathode has a porosity of from about 5 vol. % to about 90 vol. %, based on the total volume of the MnO2 cathode mixture of the MnO2 cathode.
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-29. (canceled)
A method for producing energy comprising:
- discharging a non-flow secondary Zn—MnO2 battery to a discharge voltage to produce energy, wherein the non-flow secondary Zn—MnO2 battery comprises:
- a non-flow battery housing,
- a MnO2 cathode,
- a non-flow cell Zn anode, and
- a non-flow cell electrolyte solution, wherein the MnO2 cathode, the non-flow cell Zn anode, and the non-flow cell electrolyte solution are supported within the non-flow battery housing, and wherein at least a portion of the Zn of the non-flow cell Zn anode is oxidized during the discharging;
- charging the non-flow secondary Zn—MnO2 battery to a charge voltage, wherein at least a portion of the ZnO from the non-flow cell Zn anode mixture is reduced to Zn during the charging;
- and
- repeating the discharging and the charging of the flow-assisted secondary Zn—MnO2 battery at least once, wherein the non-flow secondary Zn—MnO2 battery is characterized by a cycle life of equal to or greater than about 5,000 cycles.
-40. (canceled)
Dependencies are inferred from the claim text.