Secondary battery non-aqueous electrolytic solution, lithium ion battery, and lithium ion capacitor
AssigneeSumitomo Seika Chemicals Co., Ltd.
InventorsYuki KONO, Kyoka UENO
Life of this patent
Estimating the term…
Abstract
A non-aqueous electrolyte solution for a secondary battery, containing a first compound represented by the following Formula (1), a second compound being at least one selected from the group consisting of a compound represented by the following Formula (2), a compound represented by the following Formula (3), and a compound represented by the following Formula (4), a non-aqueous solvent, and an electrolyte.
Claims11
A non-aqueous electrolyte solution for a secondary battery, comprising:
- a first compound represented by the following Formula (1);
- a second compound being at least one selected from the group consisting of a compound represented by the following Formula (2), a compound represented by the following Formula (3), and a compound represented by the following Formula (4);
- a non-aqueous solvent;
- and
- an electrolyte,
- in the Formula (1), Q represents a hydrocarbon group that has 4 to 8 carbon atoms and may be substituted, the hydrocarbon group forming a cyclic group with a sulfur atom of a sulfonyl group, X represents a sulfonyl group or a carbonyl group, and R1 represents an alkenyl group having 3 to 6 carbon atoms, which may be substituted with a halogen atom, an alkynyl group having 3 to 6 carbon atoms, which may be substituted with a halogen atom, an alkenyloxy group having 3 to 6 carbon atoms, which may be substituted with a halogen atom, or an alkynyloxy group having 3 to 6 carbon atoms, which may be substituted with a halogen atom,
- in the Formula (2), Y and Z each independently represent a hydrogen atom or a fluorine atom, and a and b each independently represent 0 or 1,
- in the Formula (3), A1 and A2 each independently represent an oxygen atom or a sulfur atom, R2 represents a direct bond or a hydrocarbon group having 1 to 3 carbon atoms, W1 represents a halogen atom, and c represents 1 or 2,
- in the Formula (4), A3 and A4 each independently represent an oxygen atom or a sulfur atom, R3 represents a direct bond or a hydrocarbon group having 1 to 3 carbon atoms, W2 represents a halogen atom, and d represents 1 or 2.
An additive used in combination with a compound represented by the following Formula (1) to be added to a non-aqueous electrolyte solution, the additive comprising:
- at least one selected from the group consisting of a compound represented by the following Formula (2), a compound represented by the following Formula (3), and a compound represented by the following Formula (4),
- in the Formula (1), Q represents a hydrocarbon group that has 4 to 8 carbon atoms and may be substituted, the hydrocarbon group forming a cyclic group with a sulfur atom of a sulfonyl group, X represents a sulfonyl group or a carbonyl group, and R1 represents an alkenyl group having 3 to 6 carbon atoms, which may be substituted with a halogen atom, an alkynyl group having 3 to 6 carbon atoms, which may be substituted with a halogen atom, an alkenyloxy group having 3 to 6 carbon atoms, which may be substituted with a halogen atom, or an alkynyloxy group having 3 to 6 carbon atoms, which may be substituted with a halogen atom,
- in the Formula (2), Y and Z each independently represent a hydrogen atom or a fluorine atom, and a and b each independently represent 0 or 1,
- in the Formula (3), A1 and A2 each independently represent an oxygen atom or a sulfur atom, R2 represents a direct bond or a hydrocarbon group having 1 to 3 carbon atoms, W1 represents a halogen atom, and c represents 1 or 2,
- in the Formula (4), A3 and A4 each independently represent an oxygen atom or a sulfur atom, R3 represents a direct bond or a hydrocarbon group having 1 to 3 carbon atoms, W2 represents a halogen atom, and d represents 1 or 2.
Dependencies are inferred from the claim text.