Non-aqueous liquid electrolyte for secondary battery and secondary battery
AssigneeFUJIFILM Corporation
InventorsYoshinori KANAZAWA, Tatsuya IGARASHI
Life of this patent
Estimating the term…
Abstract
A non-aqueous liquid electrolyte for a secondary battery, containing an electrolyte, and at least one or more cyclopropane compound selected from the group consisting of a compound represented by the following formula (I-1), a compound represented by the following formula (II-1), and a compound represented by the following formula (III-1) in an organic solvent, wherein R11 to R15, R21 to R24 and R31 to R34 represent a hydrogen or a specific substituent; L11, L21, L31 and L32 represent a specific linking group; X represents an electron-withdrawing group; and n and m each independently represent 1 or 2.
Claims19
A non-aqueous liquid electrolyte for a secondary battery, comprising:
- an electrolyte;
- at least one or more cyclopropane compound selected from the group consisting of a compound represented by the following formula (I-1), a compound represented by the following formula (II-1), and a compound represented by the following formula (III-1) in an organic solvent,
- wherein, in formula (I-1), R11 to R14 each independently represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, a fluorine atom, a group containing an carbonyl group, or a cyano group;
- R15 represents a substituent having 1 to 7 carbon atoms which may have an oxygen atom, an nitrogen atom, or a sulfur atom;
- L11 represents an alkylene group or a carbonyl group;
- X represents an electron-withdrawing group having a Hammett substituent constant σp value of 0 or more;
- wherein, in formula (II-1), R21 to R24 each independently represent a hydrogen atom or a substituent;
- and L21 represents a group of atoms for forming a ring structure with a carbonyl group and a carbon atom of a cyclopropyl group;
- and
- wherein, in formula (III-1), R31 to R34 each independently represent a hydrogen atom or a substituent;
- L31 represents an oxygen atom, —NR35—, or a carbonyl group;
- L32 represents an alkylene group, an oxygen atom, a sulfur atom, —SO2—, or —NR35—;
- R35 represents an alkyl group or an aryl group;
- and n and m each independently represent 1 or 2.
A kit of a non-aqueous liquid electrolyte for a secondary battery, using a first agent and a second agent in mixture,
- wherein the first agent contains an electrolyte, and the second agent contains a cyclopropane compound represented by the following formula (I-1), formula (II-1) or formula (III-1).
- wherein, in formula (I-1), R11 to R14 each independently represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, a fluorine atom, a group containing an carbonyl group, or a cyano group;
- R15 represents a substituent having 1 to 7 carbon atoms which may have an oxygen atom, an nitrogen atom, or a sulfur atom;
- L11 represents an alkylene group or a carbonyl group;
- X represents an electron-withdrawing group having a Hammett substituent constant σp value of 0 or more;
- wherein, in formula (II-1), R21 to R24 each independently represent a hydrogen atom or a substituent;
- and L21 represents a group of atoms for forming a ring structure with a carbonyl group and a carbon atom of a cyclopropyl group;
- and
- wherein, in formula (III-1), R31 to R34 each independently represent a hydrogen atom or a substituent;
- L31 represents an oxygen atom, —NR35—, or a carbonyl group;
- L32 represents an alkylene group, an oxygen atom, a sulfur atom, —SO2—, or —NR35—;
- R35 represents an alkyl group or an aryl group;
- and n and m each independently represent 1 or 2.
Dependencies are inferred from the claim text.