发明名称 |
ANODE BATTERY MATERIALS AND METHODS OF MAKING THE SAME |
摘要 |
In some embodiments, the present invention provides methods of preparing porous silicon films and particles by: (1) etching a silicon material by exposure of the silicon material to a constant current density in a solution (e.g., hydrofluoric acid solution) to produce a porous silicon film over a substrate; and (2) separating the porous silicon film from the substrate by gradually increasing the electric current density in sequential increments. The methods of the present invention may also include a step of associating the porous silicon film with a binding material, such as polyacrylonitrile (PAN). The methods of the present invention may also include a step of splitting the porous silicon film to form porous silicon particles. Additional embodiments of the present invention pertain to methods of preparing porous silicon particles and anode materials that may be derived from the porous silicon films and porous silicon particles of the present invention. |
申请公布号 |
SG2014011282(A) |
申请公布日期 |
2014.06.27 |
申请号 |
SG20140011282 |
申请日期 |
2012.08.20 |
申请人 |
WILLIAM MARSH RICE UNIVERSITY;LOCKHEED MARTIN CORPORATION |
发明人 |
BISWAL, SIBANI L.;THAKUR, MADHURI;WONG, MICHAEL S.;SINSABAUGH, STEVEN L.;ISAACSON, MARK |
分类号 |
H01L21/306 |
主分类号 |
H01L21/306 |
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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