Silicon oxide particles
    42.
    发明授权
    Silicon oxide particles 失效
    氧化硅颗粒

    公开(公告)号:US06726990B1

    公开(公告)日:2004-04-27

    申请号:US09085514

    申请日:1998-05-27

    IPC分类号: C07C168

    摘要: A collection of silicon oxide nanoparticles have an average diameter from about 5 nm to about 100 nm. The collection of silicon oxide nanoparticles effectively include no particles with a diameter greater than about four times the average diameter. The particles generally have a spherical morphology. Methods for producing the nanoparticles involve laser pyrolysis. The silicon oxide nanoparticles are effective for the production of improved polishing compositions including compositions useful for chemical-mechanical polishing.

    摘要翻译: 氧化硅纳米颗粒的集合具有约5nm至约100nm的平均直径。 氧化硅纳米颗粒的收集有效地包括直径大于平均直径的四倍的颗粒。 颗粒通常具有球形形态。 制备纳米颗粒的方法包括激光热解。 氧化硅纳米颗粒对于生产改进的抛光组合物是有效的,包括用于化学机械抛光的组合物。

    High energy lithium ion batteries with particular negative electrode compositions
    50.
    发明授权
    High energy lithium ion batteries with particular negative electrode compositions 有权
    具有特殊负极组成的高能锂离子电池

    公开(公告)号:US08673490B2

    公开(公告)日:2014-03-18

    申请号:US13612132

    申请日:2012-09-12

    摘要: Combinations of materials are described in which high energy density active materials for negative electrodes of lithium ion batteries. In general, metal alloy/intermetallic compositions can provide the high energy density. These materials can have moderate volume changes upon cycling in a lithium ion battery. The volume changes can be accommodated with less degradation upon cycling through the combination with highly porous electrically conductive materials, such as highly porous carbon and/or foamed current collectors. Whether or not combined with a highly porous electrically conductive material, metal alloy/intermetallic compositions with an average particle size of no more than a micron can be advantageously used in the negative electrodes to improve cycling properties.

    摘要翻译: 描述了锂离子电池负极的高能量密度活性材料的材料组合。 通常,金属合金/金属间组合物可以提供高能量密度。 这些材料可以在锂离子电池中循环时具有适度的体积变化。 通过与高度多孔的导电材料(例如高度多孔碳和/或泡沫集流体)的组合循环,可以减少体积变化。 无论是否与高度多孔的导电材料结合,均可有利地使用平均粒度不超过一微米的金属合金/金属间化合物,以改善循环性能。