Nonaqueous electrolyte solution, and electrochemical energy-storing device and nonaqueous-electrolyte- solution secondary battery using the same
OwnerTooru Matsui, Masaki Deguchi +1inventors
InventorsTooru Matsui, Masaki Deguchi, Hiroshi Yoshizawa
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Abstract
A nonaqueous electrolyte solution being liquid at normal temperature, comprising (A) 1,2-dialkoxyethane represented by Formula: R—O—CH2—CH2—O—R′ (wherein, R and R′, which are same or different from each other, independently represent an unsubstituted or fluorine-substituted alkyl group having a carbon number of 3 or less) and (B) lithium bis[trifluoromethanesulfonyl]imide at a molar ratio [(A)/(B)] of 0.75 or more and 2 or less.
Claims16
A nonaqueous electrolyte solution being liquid at normal temperature, comprising (A) 1,2-dialkoxyethane represented by Formula:
- R—O—CH2—CH2—O—R′ (wherein, the groups R and R′ may be same or different from each other;
- R represents a fluorine-substituted alkyl group having a carbon number of 3 or less;
- and R′ represents an unsubstituted or fluorine-substituted alkyl group having a carbon number of 3 or less) and (B) lithium bis[trifluoromethanesulfonyl]imide at a molar ratio [(A)/(B)] of 0.75 or more and 2 or less.
A nonaqueous electrolyte solution being liquid at normal temperature, comprising (A) 1,2-dialkoxyethane represented by Formula R—O—CH2—CH2—O—R′ (wherein, the groups R and R′ may be same or different from each other and each represent an unsubstituted alkyl group having a carbon number of 3 or less), (B) lithium bis[trifluoromethanesulfonyl]imide, and a carbonate compound, wherein the molar ratio [(A)/(B)] of the (A) 1,2-dialkoxyethane to the (B) lithium bis[trifluoromethanesulfonyl]imide is 0.75 or more and 2 or less, and the content of the carbonate compound is less than the total molar amount of the (A) 1,2-dialkoxyethanes.
Dependencies are inferred from the claim text.