Metal-organic framework electrodes for sodium ion batteries
AssigneeNational Technology & Engineering Solutions of Sandia, LLC
InventorsDorina F. Sava Gallis, Harry Pratt, Travis Mark Anderson, Nicholas Hudak
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Abstract
A sodium ion battery comprises a cathode having a porous redox active metal-organic framework material. The battery can be an organic electrolyte sodium ion battery wherein the electrolyte comprises a sodium salt dissolved in an organic solvent or mixture of organic solvents. Alternatively, the battery can comprise an aqueous sodium ion battery wherein the electrolyte comprises a sodium salt dissolved in an aqueous solvent. Battery performance is especially related to electrolyte and binder selection.
Claims18
A sodium ion battery, comprising:
- a cathode comprising a porous redox active metal-organic framework material, wherein the metal-organic framework material comprises a redox active metal center and an organic linker;
- a sodium anode;
- and
- an ion-conductive electrolyte between the cathode and the anode;
- wherein charging of the battery causes positive sodium ions to deintercalate from the cathode and migrate through the ion-conductive electrolyte to the anode and discharging causes at least some of the sodium to reversibly migrate from the anode and intercalate back into the cathode.
Dependencies are inferred from the claim text.