Nonaqueous electrolyte including Diphenyl ether and lithium secondary battery using thereof
OwnerJung Kang Oh, Young Jai Cho +3inventors
InventorsJung Kang Oh, Young Jai Cho, Jeong Min Lee, Hak Soo Kim, Ho Seok Yang
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Abstract
A non-aqueous electrolyte for a lithium secondary battery includes a lithium salt, a basic organic solvent including a carbonate-based solvent, and a halogenated diphenyl ether compound represented by Formula 1: wherein Y is —O— or —R1—OR2—, where R1 and R2 are the same or different, and R1 and R2 are a C1-C5 alkyl group, an alkenyl group, or an alkoxy group, and only one of the phenyl rings is substituted with a halogen X1, where n is equal to 1, 2, 3, or 4 and the halogens in di-, tri-, and tetra-halogen substitutions are the same or different.
Claims20
A non-aqueous electrolyte for a lithium secondary battery, comprising:
- a lithium salt;
- a basic organic solvent including a carbonate-based solvent;
- and
- a halogenated diphenyl ether compound represented by Formula 1:
- wherein, in Formula 1:
- Y is —O— or —R1—O—R2—, where R1 and R2 are the same or different, and R1 and R2 are a C1-C5 alkyl group, an alkenyl group, or an alkoxy group, and
- only one of the phenyl rings is substituted with a halogen X1, where n is equal to 1, 2, 3, or 4 and the halogens in di-, tri-, and tetra-halogen substitutions are the same or different.
A method of making a non-aqueous electrolyte for a lithium secondary battery, the method comprising:
- providing a lithium salt;
- providing a basic organic solvent including a carbonate-based solvent;
- providing a halogenated diphenyl ether compound represented by Formula 1:
- combining the lithium salt, the basic organic solvent, and the halogenated diphenyl ether compound, wherein, in Formula 1:
- Y is —O— or —R1—O—R2—, where R1 and R2 are the same or different, and R1 and R2 are a C1-C5 alkyl group, an alkenyl group, or an alkoxy group, and
- only one of the phenyl rings is substituted with a halogen X1, where n is equal to 1, 2, 3, or 4 and the halogens in di-, tri-, and tetra-halogen substitutions are the same or different.
Dependencies are inferred from the claim text.