Negative active material for rechargeable lithium battery, and rechargeable lithium battery including the same
AssigneeSamsung SDI Co., Ltd.
InventorKyeu-Yoon Sheem
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Abstract
A negative active material for a rechargeable lithium battery includes a carbon component having a ratio (I1360/I1620) of peak intensity (I1360) at 1360 cm−1 relative to peak intensity (I1620) at 1620 cm−1 ranging from about 1 to about 4.5 measured by Raman spectroscopy.
Claims14
A negative active material for a rechargeable lithium battery comprising a carbon component having a ratio (I1360/I1620) of a peak intensity (I1360) at 1360 cm−1 relative to a peak intensity (I1620) at 1620 cm−1 ranging from about 1 to about 4.5 measured by Raman spectroscopy, wherein the carbon component is a composite carbon material comprising:
- carbon core including crystalline carbon;
- and
- surface-damaged carbon having defects on the surface of the carbon core including crystalline carbon and including amorphous carbon,
- wherein the core carbon comprises natural graphite, artificial graphite, or a combination thereof.
Dependencies are inferred from the claim text.