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US 2008/0292971 A1Published application
Electrolytic solution and battery
AssigneeSony Corporation
InventorsMasayuki Ihara, Kiyohiko Suzuki, Akinori Kita, Tadahiko Kubota
Life of this patent
Estimating the term…
Abstract
A battery capable of improving high-temperature characteristics is provided. The battery includes a cathode, an anode and an electrolytic solution. A separator provided between the cathode and the anode is impregnated with the electrolytic solution. A solvent of the electrolytic solution includes a main solvent such as a cyclic carbonate which includes halogen and a sub solvent such as carbonate dimer.
Claims25
An electrolytic solution comprising:
- a solvent;
- and
- an electrolyte salt,
- wherein the solvent includes:
- at least one kind selected from the group consisting of a cyclic carbonate represented by Chemical Formula 1 which includes a halogen and a chain carbonate represented by Chemical Formula 2 which includes a halogen;
- and
- at least one kind selected from the group consisting of compounds represented by Chemical Formulas 3, 4 and 5:
- where R1, R2, R3 and R4 each represent a hydrogen group, a halogen group, an alkyl group or a halogenated alkyl group, and at least one of them is a halogen group or a halogenated alkyl group,
- where R11, R12, R13, R14, R15 and R16 each represent a hydrogen group, a halogen group, an alkyl group or a halogenated alkyl group, and at least one of them is a halogen group or a halogenated alkyl group,
- where R21 and R23 each represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, or an alkyl group, an alkenyl group or an alkynyl group substituted with an aromatic hydrocarbon group or an alicyclic hydrocarbon group, or a group formed by halogenating any one of them, and R22 represents a straight-chain or branched alkylene group, an arylene group, a divalent group including an arylene group and an alkylene group, a divalent group with 2 to 12 carbon atoms which includes an ether bond and an alkylene group, or a group formed by halogenating any one of them,
- where R31 and R33 each represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, or an alkyl group, an alkenyl group or an alkynyl group substituted with an aromatic hydrocarbon group or an alicyclic hydrocarbon group, or a group formed by halogenating any one of them, and R32 represents a straight-chain or branched alkylene group, an arylene group, a divalent group including an arylene group and an alkylene group, a divalent group with 2 to 12 carbon atoms which includes an ether bond and an alkylene group, or a group formed by halogenating any one of them,
- where R41 and R43 each represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, or an alkyl group, an alkenyl group or an alkynyl group substituted with an aromatic hydrocarbon group or an alicyclic hydrocarbon group, or a group formed by halogenating any one of them, and R42 represents a straight-chain or branched alkylene group, an arylene group, a divalent group including an arylene group and an alkylene group, a divalent group with 2 to 12 carbon atoms which includes an ether bond and an alkylene group, or a group formed by halogenating any one of them.
9 more elements
A battery comprising a cathode, an anode and an electrolytic solution, wherein
- the electrolytic solution includes a solvent and an electrolyte salt, and
- the solvent includes:
- at least one kind selected from the group consisting of a cyclic carbonate represented by Chemical Formula 13 which includes a halogen and a chain carbonate represented by Chemical Formula 14 which includes a halogen;
- and
- at least one kind selected from the group consisting of compounds represented by Chemical Formulas 15, 16 and 17:
- where R1, R2, R3 and R4 each represent a hydrogen group, a halogen group, an alkyl group or a halogenated alkyl group, and at least one of them is a halogen group or a halogenated alkyl group,
- where R11, R12, R13, R14, R15 and R16 each represent a hydrogen group, a halogen group, an alkyl group or a halogenated alkyl group, and at least one of them is a halogen group or a halogenated alkyl group,
- where R21 and R23 each represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, or an alkyl group, an alkenyl group or an alkynyl group substituted with an aromatic hydrocarbon group or an alicyclic hydrocarbon group, or a group formed by halogenating any one of them, and R22 represents a straight-chain or branched alkylene group, an arylene group, a divalent group including an arylene group and an alkylene group, a divalent group with 2 to 12 carbon atoms which includes an ether bond and an alkylene group, or a group formed by halogenating any one of them,
- where R31 and R33 each represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, or an alkyl group, an alkenyl group or an alkynyl group substituted with an aromatic hydrocarbon group or an alicyclic hydrocarbon group, or a group formed by halogenating any one of them, and R32 represents a straight-chain or branched alkylene group, an arylene group, a divalent group including an arylene group and an alkylene group, a divalent group with 2 to 12 carbon atoms which includes an ether bond and an alkylene group, or a group formed by halogenating any one of them,
- where R41 and R43 each represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, or an alkyl group, an alkenyl group or an alkynyl group substituted with an aromatic hydrocarbon group or an alicyclic hydrocarbon group, or a group formed by halogenating any one of them, and R42 represents a straight-chain or branched alkylene group, an arylene group, a divalent group including an arylene group and an alkylene group, a divalent group with 2 to 12 carbon atoms which includes an ether bond and an alkylene group, or a group formed by halogenating any one of them.
7 more elements
Dependencies are inferred from the claim text.