NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME
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United States of America Patent
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Issued Date -
Jan 25, 2018
app pub date -
Jul 20, 2017
filing date -
Jul 21, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A negative active material for a rechargeable lithium battery includes a silicon-carbon composite including a core including a crystalline carbon material, a silicon oxide, and a silicon particle and an amorphous carbon-containing coating layer on the surface of the core. An intensity ratio (Si/SiO2) of a Si peak relative to a SiO2 peak ranges from about 2.0 to about 3.0 as measured using an X-ray photoelectron spectroscopy for the negative active material.
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| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| KR | B1 | KR102270155 | Jul 21, 2016 |
| CN | B | CN107644983 | Jul 21, 2017 |
International Classification(s)
- 2017 Application Filing Year
- H01M Class
- 6607 Applications Filed
- 4942 Patents Issued To-Date
- 74.80 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- H01M Class
- 31.62 % this patent is cited more than
- 7 Age