公开(公告)号：US06852449B2

公开(公告)日：2005-02-08

申请号：US10264870

申请日：2002-10-03

申请人： Mikito Nagata ,  Hiroyuki Yumoto ,  Hisashi Tsukamoto

发明人： Mikito Nagata ,  Hiroyuki Yumoto ,  Hisashi Tsukamoto

IPC分类号： H01M4/36 ,  H01M4/58 ,  H01M4/60 ,  H01M4/62 ,  H01M4/66 ,  H01M4/04

CPC分类号： H01M4/583 ,  H01M4/587 ,  H01M4/621 ,  H01M4/661 ,  H01M10/052 ,  Y10T29/49115

摘要： A negative electrode for use in secondary battery with nonaqueous electrolyte having a high voltage and energy density and a superior cycle property, characterized in that the active material comprises composite carbon materials containing hard spherical particles, carbon fibers, and graphite flakes. The hard spheres provide structure to the composite, the carbon fibers improve packing density, conductivity, and stiffness to prevent the body made thereof from swelling and decomposing, and the graphite flakes reduce friction in the mixture. An aqueous, non-fluorine-containing binder is used, along with a titanium negative substrate.

摘要翻译： 一种用于具有高电压和能量密度的非水电解质的二次电池的负极，并且具有优异的循环性能，其特征在于，所述活性材料包括含有硬球形颗粒，碳纤维和石墨薄片的复合碳材料。 硬球体为复合材料提供了结构，碳纤维提高了填充密度，导电性和刚度，以防止其制成的体积膨胀和分解，并且石墨薄片减少混合物中的摩擦。 使用含水非氟粘合剂以及钛负极基材。