NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY COMPRISING SAME
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United States of America Patent
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Issued Date -
Oct 3, 2024
app pub date -
Jun 11, 2024
filing date -
Nov 7, 2019
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Abstract
A negative active material for a rechargeable lithium battery and a rechargeable lithium battery, the negative active material including secondary particles of agglomerated primary particles, the primary particles including Si particles with SiC on a surface of the Si particles; and an amorphous carbon surrounding the secondary particles, wherein a peak intensity ratio (ISi(111)/ISiC(111)) of a peak intensity (ISi(111)) at a Si (111) plane relative to a peak intensity (ISiC(111)) at a SiC (111) plane is about 5 to about 50 measured by X-ray diffraction analysis using a CuKα ray.
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