Si/C COMPOSITE MATERIAL, METHOD FOR MANUFACTURING SAME, AND ELECTRODE

• 特願2011-190110 (2011.8.31) JP

Provided are a composite material in which Si and carbon are combined as a conventionally unknown structure, a method for manufacturing the composite material, and an Li-ion negative electrode material having a high charge/discharge capacity and a high cycle performance. An aggregate of nano-size Si particles is heated, and a carbon layer is formed on each Si particle using a starting material gas containing carbon. This carbon layer forms a wall (12) defining a space (13a) encompassing the Si particle (11) and a space (13b) not encompassing the Si particle (11).

• TOHOKU UNIVERSITY,
• KYOTANI TAKASHI,
• NISHIHARA HIROTOMO,
• IWAMURA SHINICHIROH

• KYOTANI TAKASHI,
• NISHIHARA HIROTOMO,
• IWAMURA SHINICHIROH

• H01M   4/38      元素または合金
• B82Y  30/00      材料または表面科学のためのナノテクノロジー，例．ナノ複合材料
• B82Y  40/00      ナノ構造物の製造または処理
• H01M   4/134     金属，Ｓｉまたは合金を主成分とする電極
• H01M   4/36      活物質，固形活物質，流体活物質の材料の選択
• H01M   4/48      無機酸化物または無機水酸化物
• H01M   4/587     軽金属を挿入するためのもの