公开(公告)号：US20130344394A1

公开(公告)日：2013-12-26

申请号：US14003132

申请日：2012-03-08

申请人： Li Yang ,  Jizhang Chen ,  Shaohua Fang

发明人： Li Yang ,  Jizhang Chen ,  Shaohua Fang

IPC分类号： H01M4/36 ,  H01M4/04

CPC分类号： H01M4/366 ,  H01M4/04 ,  H01M4/483 ,  H01M4/587 ,  H01M10/0525

摘要： Disclosed is a tin-carbon mesoporous composite for a lithium ion battery negative electrode material, and a method for preparing the same. Using a mesoporous molecular sieve as a template, the precursors of tin and carbon are caused to fill the mesopores of the template and carbonized under nitrogen to obtain a composite of stannic oxide and carbon, and the stannic oxide is encapsulated by the carbon; and then the tin-carbon mesoporous composite for lithium ion battery negative electrode material is obtained by hydrothermal treatment, carbonization, etching, and high temperature carbothermic reduction. The tin-carbon mesoporous composite for lithium ion battery negative electrode material synthesized in the present invention has a reversible capacity of 550 mAh·g−1, after 100 cycles at a current density of 500 mA·g−1.

摘要翻译： 公开了一种用于锂离子电池负极材料的锡碳介孔复合材料及其制备方法。 使用介孔分子筛作为模板，使锡和碳的前体填充模板的介孔并在氮气下碳化，得到氧化锡和碳的复合物，并且氧化锡被碳包裹; 然后通过水热处理，碳化，蚀刻和高温碳热还原获得用于锂离子电池负极材料的锡碳中孔复合材料。 本发明中合成的锂离子电池负极材料用锡碳介孔复合体，在500mA·g-1的电流密度下经过100次循环后具有550mAh·g-1的可逆容量。