Lithium secondary battery
    7.
    发明授权
    Lithium secondary battery 失效
    锂二次电池

    公开(公告)号:US07659034B2

    公开(公告)日:2010-02-09

    申请号:US10992081

    申请日:2004-11-19

    摘要: Charge-discharge cycle performance is improved in a lithium secondary battery including a negative electrode containing a negative electrode active material having silicon as its main component, provided on a surface of a current collector, a positive electrode containing a positive electrode active material, and a non-aqueous electrolyte. The positive electrode active material is a lithium transition metal oxide containing Li and Co and having a layered structure, and further containing a group IVA element of the periodic table, such as Zr, Ti, or Tf, and a group IIA element of the periodic table, such as Mg.

    摘要翻译: 在集电体的表面设置有含有作为主要成分的负极活性物质的负极的锂二次电池,含有正极活性物质的正极和含有正极活性物质的正极的锂二次电池的充放电循环性能提高, 非水电解质。 正极活性物质是包含Li和Co并具有层状结构的锂过渡金属氧化物,并且还含有周期表中的IVA族元素,例如Zr,Ti或Tf,以及周期表的第IIA族元素 表,如Mg。