Electrolyte for lithium ion rechargeable battery and lithium ion rechargeable battery comprising the same
First Claim
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1. An electrolyte for a lithium ion rechargeable battery, consisting of:
- a non-aqueous organic solvent;
a lithium salt;
at least one monomer selected from a group consisting of an acrylate monomer, epoxy monomer, isocyanate monomer and prepolymers thereof;
an organic peroxide or an azo-based polymerization initiator; and
triphenyl phosphate,wherein the triphenyl phosphate has a concentration of 5 to 10 wt %, based on the total weight of the electrolyte.
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Abstract
The present invention relates to an electrolyte for a lithium ion rechargeable battery and a lithium ion rechargeable battery including the same. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and triphenyl phosphate. A lithium ion rechargeable battery including the electrolyte has improved overcharge stability and shows excellent chemical properties including reducing swelling, high-temperature storage stability, and cycle life characteristics.
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Citations
18 Claims
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1. An electrolyte for a lithium ion rechargeable battery, consisting of:
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a non-aqueous organic solvent; a lithium salt; at least one monomer selected from a group consisting of an acrylate monomer, epoxy monomer, isocyanate monomer and prepolymers thereof; an organic peroxide or an azo-based polymerization initiator; and triphenyl phosphate, wherein the triphenyl phosphate has a concentration of 5 to 10 wt %, based on the total weight of the electrolyte. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A lithium ion rechargeable battery, comprising:
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a cathode including a cathode active material that is capable of reversible lithium ion intercalation/deintercalation; an anode including an anode active material that is capable of reversible lithium ion intercalation/deintercalation; and an electrolyte, wherein the electrolyte consists of; a non-aqueous organic solvent; a lithium salt; at least one monomer selected from a group consisting of an acrylate monomer, epoxy monomer, isocyanate monomer and prepolymers thereof; an organic peroxide or an azo-based polymerization initiator; and triphenyl phosphate, wherein the triphenyl phosphate has a concentration of 5 to 10 wt %, based on the total weight of the electrolyte. - View Dependent Claims (18)
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Specification