发明名称 |
Negative active material and lithium battery containing the negative active material |
摘要 |
A negative active material and a lithium battery including the negative active material. The negative active material includes primary particles, each including: a crystalline carbonaceous core having a surface on which silicon-based nanowires are disposed; and an amorphous carbonaceous coating layer that is coated on the crystalline carbonaceous core so as not to expose at least a portion of the silicon-based nanowires. Due to the inclusion of the primary particles, an expansion ratio is controlled and conductivity is provided and thus, a formed lithium battery including the negative active material may have improved charge-discharge efficiency and cycle lifespan characteristics. |
申请公布号 |
EP2579365(A1) |
申请公布日期 |
2013.04.10 |
申请号 |
EP20120187380 |
申请日期 |
2012.10.05 |
申请人 |
SAMSUNG SDI CO., LTD. |
发明人 |
CHO, YU-JEONG;LEE, SO-RA;YOO, HA-NA;DO, UI-SONG;SHIN, CHANG-SU;LEE, SU-KYUNG;KIM, JAE-MYUNG |
分类号 |
H01M4/134;H01M4/133 |
主分类号 |
H01M4/134 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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