发明名称 |
MULTI-PHASE, SILICON-CONTAINING ELECTRODE FOR A LITHIUM-ION BATTERY |
摘要 |
An electrode composition for a lithium-ion battery comprising particles having an average particle size ranging from 1 mum to 50 mum. The particles include an electrochemically active phase and an electrochemically inactive phase that share a common phase boundary. The electrochemically active phase includes elemental silicon and the electrochemically inactive phase includes at least two metal elements in the form of an intermetallic compound, a solid solution, or combination thereof. Each of the phases is free of crystallites that are greater than 1000 angstroms prior to cycling. In addition, the electrochemically active phase is amorphous after the electrode has been cycled through one full charge-discharge cycle in a lithium-ion battery. |
申请公布号 |
EP1652249(B1) |
申请公布日期 |
2008.06.11 |
申请号 |
EP20040779898 |
申请日期 |
2004.07.30 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
CHRISTENSEN, LEIF;OBROVAC, MARK N.;LE, DINH BA |
分类号 |
H01M4/40;B22F9/00;H01M4/02;H01M4/134;H01M4/1395;H01M4/36;H01M4/38;H01M4/62;H01M10/052;H01M10/36 |
主分类号 |
H01M4/40 |
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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