METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SOLUTION
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United States of America Patent
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Jan 23, 2025
app pub date -
Jun 6, 2022
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Jun 6, 2022
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Disclosed is a method for producing a non-aqueous electrolyte solution containing a sulfonylimide compound represented by the general formula (1) and an electrolyte solution solvent (B). The method includes preparing a sulfonylimide solution containing the sulfonylimide compound represented by the general formula (1) and an electrolyte solution solvent (A) different from the electrolyte solution solvent (B) and fractionally distilling off the electrolyte solution solvent (A) by adding the electrolyte solution solvent (B) to the sulfonylimide solution obtained in the preparing, LiN(RSO2)(FSO2) (1) (where R represents a fluorine atom, an alkyl group with 1 to 6 carbon atoms, or a fluoroalkyl group with 1 to 6 carbon atoms).
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