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US 9,755,275 B2Granted
Rechargeable lithium battery
AssigneeSamsung SDI Co., Ltd.
InventorsTae-Hyun Bae, Woo-Cheol Shin, Myung-Hoon Kim, Ae-Ran Kim
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Abstract
A rechargeable lithium battery includes a negative electrode including a negative active material including a Si-based material, a positive electrode, and an electrolyte including a lithium salt, an organic solvent, and an additive including lithium triflate and fluoroethylene carbonate. Embodiments of the rechargeable lithium battery have excellent irreversible characteristics and cycle-life characteristics.
Claims8
A rechargeable lithium battery comprising:
- a negative electrode comprising a negative active material comprising a Si-based material;
- a positive electrode;
- and
- an electrolyte comprising a lithium salt, an organic solvent, and an additive comprising lithium triflate and fluoroethylene carbonate,
- wherein the lithium triflate is included in the electrolyte in an amount of about 1 part by weight to about 7 parts by weight based on 100 parts by weight of the organic solvent.
2 more elements
A rechargeable lithium battery comprising:
- a negative electrode comprising a negative active material comprising a Si-based material;
- a positive electrode;
- and
- an electrolyte comprising a lithium salt, an organic solvent, and an additive comprising lithium triflate and fluoroethylene carbonate,
- wherein the fluoroethylene carbonate is included in the electrolyte in an amount of about 5 parts by weight to 10 parts by weight based on 100 parts by weight of the organic solvent, and
- wherein the lithium triflate is included in the electrolyte in an amount of about 1 part by weight to about 7 parts by weight based on 100 parts by weight of the organic solvent.
3 more elements
Dependencies are inferred from the claim text.