- 专利标题: Anode material having a uniform metal-semiconductor alloy layer
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申请号: US12426069申请日: 2009-04-17
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公开(公告)号: US08367244B2公开(公告)日: 2013-02-05
- 发明人: Murali Ramasubramanian , Robert M. Spotnitz
- 申请人: Murali Ramasubramanian , Robert M. Spotnitz
- 申请人地址: US CA Fremont
- 专利权人: Enovix Corporation
- 当前专利权人: Enovix Corporation
- 当前专利权人地址: US CA Fremont
- 代理机构: Bryan Cave LLP
- 主分类号: H01M4/02
- IPC分类号: H01M4/02 ; H01L21/44
摘要:
The present invention relates to methods for producing anode materials for use in nonaqueous electrolyte secondary batteries. In the present invention, a metal-semiconductor alloy layer is formed on an anode material by contacting a portion of the anode material with a solution containing metals ions and a dissolution component. When the anode material is contacted with the solution, the dissolution component dissolves a part of the semiconductor material in the anode material and deposit the metal on the anode material. After deposition, the anode material and metal are annealed to form a uniform metal-semiconductor alloy layer. The anode material of the present invention can be in a monolithic form or a particle form. When the anode material is in a particle form, the particulate anode material can be further shaped and sintered to agglomerate the particulate anode material.
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