Electrolyte additive to stabilize lithium organic electrolytes for lithium ion cells
AssigneeThe United States of America as represented by the Secretary of the Army
InventorEdward J. Plichta
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Abstract
A salt additive to lithium conducting organic electrolytes which thermally stabilizes the solution and more particular to provide improved cell operation and storage of lithium ion cells at elevated temperatures is LiBF4 and is employed in a salt molar ratio of at least about 1:1.
Claims16
An electrolyte electrochemical cells comprising an organic solvent solution having an organic solvent and at least two different lithium salts in which a first one of the lithium salts is LiBF4 in an amount that is at least an about one to one mole ratio to a second one of the lithium salts present.
An electrochemical cell comprising an anode, a cathode and an electrolyte, wherein said electrolyte comprises an organic solvent solution having an organic solvent and at least two different lithium salts in which a first one of the lithium salts is LiBF4 in an amount that is at least an about one to one mole ratio to a second one of the lithium salts present;
Dependencies are inferred from the claim text.