Electrolytic solution and electrochemical device
One aspect of the present invention provides an electrolytic solution comprising a compound represented by the following formula (1): wherein R 1 to R 3 each independently represent an alkyl group or a fluorine atom, R 4 represents an alkylene group, and R 5 represents an organic group containing a sulfur atom.
1. An electrolytic solution comprising a compound represented by the following formula (1):
wherein R 1 to R 3 each independently represent an alkyl group or a fluorine atom, R 4 represents an alkylene group, and R 5 represents an organic group comprising a sulfur atom,
wherein a number of silicon atoms in one molecule of the compound represented by the formula (1) is one,
wherein at least one of R 1 to R 3 is a fluorine atom, and
wherein a content of the compound represented by the formula (1) is 10% by mass or less based on a total amount of the electrolytic solution.
2. The electrolytic solution according to claim 1 , wherein R 5 is a group represented by any of the following formula (2), formula (3) and formula (4):
wherein R 6 represents an alkyl group, and * represents a bond;
wherein R 7 represents an alkyl group, and * represents a bond; and
wherein R 8 represents an alkyl group, and * represents a bond.
3. An electrochemical device comprising:
a positive electrode;
a negative electrode; and
the electrolytic solution according to claim 1 .
4. The electrochemical device according to claim 3 , wherein the negative electrode comprises a carbon material.
5. The electrochemical device according to claim 4 , wherein the carbon material comprises graphite.
6. The electrochemical device according to claim 4 , wherein the negative electrode further comprises a material comprising at least one element of the group consisting of silicon and tin.
7. The electrochemical device according to claim 3 , wherein the electrochemical device is a non-aqueous electrolytic solution secondary battery or a capacitor.