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US 8,148,006 B2Granted
Electrolytic solution and battery
AssigneeSony Corporation
InventorsMasayuki Ihara, Takashi Murakami, Tadahiko Kubota
Life of this patent
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Abstract
A battery capable of improving cycle characteristics is provided. A separator arranged between a cathode and an anode is impregnated with an electrolytic solution. The electrolytic solution includes: a solvent; and an electrolytic salt, in which the solvent includes a compound having a difluoroalkene structure. The content of the compound having a difluoroalkene structure in the solvent is within a range from 1 wt % to 5 wt % both inclusive.
Claims20
An electrolytic solution comprising:
- a solvent;
- and
- an electrolyte salt,
- wherein,
- the solvent includes a compound having a difluoroalkene structure represented by Chemical Formula 1:
- where R1 represents a group including at least one kind selected from the group consisting of an aryl structure, a cycloalkane structure and a heterocyclic structure, R2 represents a hydrogen group, a fluorine group, an alkyl group having 1 to 3 carbon atoms, an aryl group, a fluorinated alkyl group having 1 to 3 carbon atoms or fluorinated aryl group, R1 and R2 may be bonded to form a cyclic structure, R3 represents a hydrogen group or an alkyl group, and n is an integer of 0 to 4.
3 more elements
A battery comprising:
- a cathode;
- an anode;
- and an electrolytic solution,
- wherein,
- the electrolytic solution includes a solvent and an electrolyte salt,
- the solvent includes a compound having a difluoroalkene structure, and
- the compound having a difluoroalkene structure is represented by Chemical Formula 7:
- where R1 represents a group including at least one kind selected from the group consisting of an aryl structure, a cycloalkane structure and a heterocyclic structure, R2 represents a hydrogen group, a fluorine group, an alkyl group having 1 to 3 carbon atoms, an aryl group, a fluorinated alkyl group having 1 to 3 carbon atoms or fluorinated aryl group, R1 and R2 may be bonded to form a cyclic structure, R3 represents a hydrogen group or an alkyl group, and n is an integer of 0 to 4.
5 more elements
Dependencies are inferred from the claim text.