Method for producing electrolyte solution for lithium ion battery and lithium ion battery using same
AssigneeCentral Glass Company, Limited
InventorsKeiji Sato, Meguru Oe
Life of this patent
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Abstract
There is provided a method for producing an electrolyte solution for lithium ion batteries, in which lithium hexafluorophosphate is used as an electrolyte, comprising the steps of (a) reacting phosphorus trichloride, chlorine and lithium chloride in a nonaqueous organic solvent; and (b) reacting a reaction product of the step (a) formed in the solvent, with hydrogen fluoride.
Claims8
A method for producing an electrolyte solution for lithium ion batteries, in which lithium hexafluorophosphate is used as an electrolyte, comprising the steps of:
- (a) reacting phosphorus trichloride, chlorine and lithium chloride in a nonaqueous organic solvent, thereby producing lithium hexachlorophosphate in the solvent;
- and
- (b) reacting the lithium hexachlorophosphate in the solvent with hydrogen fluoride, thereby producing a lithium hexafluorophosphate-containing solution.
A method for producing an electrolyte solution for lithium ion batteries, in which lithium hexafluorophosphate is used as an electrolyte, comprising the steps of:
- (a) reacting phosphorus trichloride, chlorine and lithium chloride in a nonaqueous organic solvent, thereby producing lithium hexachlorophosphate in the solvent;
- (b) reacting the lithium hexachlorophosphate in the solvent with hydrogen fluoride, thereby producing a lithium hexafluorophosphate-containing solution;
- and
- (c) adding further lithium chloride to the solution produced in step (b) to convert excess hydrogen fluoride to hydrogen chloride and lithium fluoride.
Dependencies are inferred from the claim text.