Localized high salt concentration electrolyte
AssigneeWildcat Discovery Technologies, Inc.
InventorsJinhua Huang, Bin Li, Peter Bennington, Tyler Stanley
Life of this patent
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Abstract
A battery includes an electrolyte comprised of a solvating solvent, diluent, and a lithium salt. The electrolyte is a solution having a saturation point, the lithium salt being at least 5 times more soluble in the solvating solvent than in the diluent. The diluent and the solvating solvent are immiscible at a molar ratio of diluent/solvating solvent of 2 or more, and the solvating solvent and diluent are present in the electrolyte at a diluent/solvating solvent molar ratio of 0.1 to less than 2.
Claims16
A battery comprising an electrolyte comprised of a solvating solvent, diluent and a lithium salt, the electrolyte being a solution having a saturation point, the lithium salt being at least 5 times more soluble in the solvating solvent than the diluent, the diluent and the solvating solvent are immiscible at a molar ratio of diluent/solvating solvent of 2 or more and the solvating solvent and diluent are present in the electrolyte at a diluent/solvating solvent molar ratio of 0.1 to less than 2.
A battery comprising an electrolyte comprised of a solvating solvent, diluent and a lithium salt, the electrolyte being a solution having a saturation point, the lithium salt being at least 5 times more soluble to less than 10 times more soluble in the solvating solvent than the diluent, and the solvating solvent and diluent are present in the electrolyte at a diluent/solvating solvent molar ratio of 0.1 to less than 5.
A method of forming an electrolyte comprising,
- a. dissolving a lithium salt in a solvating solvent to form a solvating solvent-lithium salt solution,
- b. dissolving a diluent in the solvating solvent-lithium salt solution, wherein the salt has a saturation point in the diluent that is at least 5 times less than in the solvating solvent, and
- c. further dissolving more lithium salt to a concentration that exceeds the amount of the lithium salt soluble in the solvating solvent present to form the electrolyte.
Dependencies are inferred from the claim text.