Negative active material composition for a rechargeable lithium battery, method of producing a negative electrode for a rechargeable lithium battery using the same, and rechargeable lithium battery fabricated using the same
AssigneeSamsung SDI Co., Ltd.
InventorsChang-Seob Kim, Ju-Hyung Kim, Un-Sick Park
Life of this patent
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Abstract
Disclosed is a negative active material composition for a rechargeable lithium battery, a method of producing a negative electrode for a rechargeable lithium battery using the same, and a rechargeable lithium battery using the same. The negative active material composition includes a negative active material, an additive capable of forming a surface electrolyte interface film on a negative electrode during charge and discharge, a binder, and an organic solvent.
Claims24
A negative active material composition comprising:
- a negative active material comprising a carbonaceous material;
- an additive capable of forming a solid electrolyte interface film on a negative electrode during charge and discharge;
- a binder;
- and
- an organic solvent.
A method of producing a negative electrode for a rechargeable lithium battery comprising:
- mixing a negative active material, a binder, an organic solvent, and an additive capable of forming a solid electrolyte interface film on a negative electrode during charge and discharge to prepare a negative active material composition;
- coating the negative active material composition on a current collector;
- and
- drying the coated current collector.
A rechargeable lithium battery comprising:
- a negative electrode comprising a negative active material comprising a carbonaceous material, a binder and an additive capable of forming a solid electrolyte interface film on the negative electrode during charge and discharge;
- a positive electrode comprising a lithiated intercalation positive active material;
- and
- an electrolyte.
A negative active material composition comprising:
- a negative active material comprising a carbonaceous material;
- an additive comprising a compound having a S═O bond, a compound having a P═O bond, or a carbonate-based compound;
- a binder;
- and
- an organic solvent.
A method of producing a negative electrode for a rechargeable lithium battery comprising:
- mixing a negative active material, a binder, an organic solvent, and an additive comprising a compound having a S═O bond, a compound having a P═O bond, or a carbonate-based compound to prepare a negative active material composition;
- coating the negative active material composition on a current collector;
- and
- drying the coated current collector.
A rechargeable lithium battery comprising:
- a negative electrode comprising a negative active material comprising a carbonaceous material, a binder, and an additive comprising a compound having a S═O bond, a compound having a P═O bond, or a carbonate-based compound;
- a positive electrode comprising a lithiated intercalation positive active material;
- and
- an electrolyte.
Dependencies are inferred from the claim text.