Intermediate temperature alkali metal/oxygen batteries employing molten nitrate electrolytes
AssigneeLiox Power, Inc.
InventorsJASMIN UDDIN, DAN D. ADDISON, VINCENT GIORDANI
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Abstract
High capacity alkali metal/oxygen batteries, e.g. Li/O2 batteries, employing molten salt electrolytes comprising alkali metal cations and nitrate anions are disclosed. Batteries of the present invention operate at an intermediate temperature ranging from 80° C. to 250° C. Molten alkali metal nitrate electrolytes employed in O2 electrodes within this temperature range provide alkali metal/oxygen batteries having significantly improved efficiency and rechargeability compared to prior art systems.
Claims19
An alkali metal/O2 battery comprising:
- a) an alkali metal negative electrode;
- b) an O2 positive electrode;
- c) a molten salt electrolyte comprising alkali metal cations and nitrate anions.
A method of operating a battery comprising a Li metal negative electrode and an electrolyte, wherein the method comprises heating the Li metal negative electrode to an annealing temperature at which Li dendrites are not formed or are removed.
Dependencies are inferred from the claim text.