Invention Grant
- Patent Title: Anode material having a uniform metal-semiconductor alloy layer
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Application No.: US12426069Application Date: 2009-04-17
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Publication No.: US08367244B2Publication Date: 2013-02-05
- Inventor: Murali Ramasubramanian , Robert M. Spotnitz
- Applicant: Murali Ramasubramanian , Robert M. Spotnitz
- Applicant Address: US CA Fremont
- Assignee: Enovix Corporation
- Current Assignee: Enovix Corporation
- Current Assignee Address: US CA Fremont
- Agency: Bryan Cave LLP
- Main IPC: H01M4/02
- IPC: H01M4/02 ; H01L21/44

Abstract:
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.
Public/Granted literature
- US20090263716A1 ANODE MATERIAL HAVING A UNIFORM METAL-SEMICONDUCTOR ALLOY LAYER Public/Granted day:2009-10-22
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