发明授权
- 专利标题: Silicon based composite material
- 专利标题(中): 硅基复合材料
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申请号: US12350631申请日: 2009-01-08
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公开(公告)号: US08679679B2公开(公告)日: 2014-03-25
- 发明人: Pu Zhang , Suresh Mani , Junqing Ma , Liya Wang , Jun Q. Chin
- 申请人: Pu Zhang , Suresh Mani , Junqing Ma , Liya Wang , Jun Q. Chin
- 申请人地址: US MA Waltham
- 专利权人: A123 Systems, Inc.
- 当前专利权人: A123 Systems, Inc.
- 当前专利权人地址: US MA Waltham
- 代理机构: Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C.
- 主分类号: H01M4/134
- IPC分类号: H01M4/134
摘要:
A composite material having utility as an anode for lithium ion batteries comprises silicon, a transition metal, a ceramic and an electrically conductive diluent such as carbon. In particular instances, the ceramic is electrically conductive, and may comprise vanadium carbide or tungsten carbide. The transition metal may, in some instances, comprise iron. The material may be fabricated by grinding together a starting mixture of the components, and grinding may be accomplished in a high impact ball milling process, and the grinding step may cause partial alloying of the silicon with the metal and/or carbon. Further disclosed is a method for making the material as well as electrodes which incorporate the material.
公开/授权文献
- US20090179181A1 SILICON BASED COMPOSITE MATERIAL 公开/授权日:2009-07-16
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