Electrode used for a non-aqueous electrolyte secondary battery and a non-aqueous electrolyte secondary battery used the same for a negative electrode
    6.
    发明授权
    Electrode used for a non-aqueous electrolyte secondary battery and a non-aqueous electrolyte secondary battery used the same for a negative electrode 失效
    用于非水电解质二次电池的电极和用于负极的非水电解质二次电池

    公开(公告)号:US07407727B2

    公开(公告)日:2008-08-05

    申请号:US10671460

    申请日:2003-09-29

    IPC分类号: H01M4/72

    摘要: An electrode according to the invention can provide a non-aqueous electrolyte secondary battery having an ability to release a volume expansion at the time of charge and discharge as well as the time of a cycle. The electrode comprises a current collector made of a material which is not alloyed with Li, and a dot pattern 2 of a metallic material able to be alloyed with Li formed on the current collector. At the time of charge, since the volume expansion of each dot 3 is carried out so as to bury adjoining crevices 4 between the dots, a stress generated is released, thereby degradation of an electrode being avoided. Each dot may also be made into porosity.

    摘要翻译: 根据本发明的电极可以提供一种具有在充放电时释放体积膨胀以及循环时间的能力的非水电解质二次电池。 电极包括由不与Li合金化的材料制成的集电体和能够与集电体形成的能够与Li合金化的金属材料的点图案2。 在充电时,由于每个点3的体积膨胀被执行以便在点之间掩埋相邻的缝隙4,所以产生的应力被释放,从而避免了电极的劣化。 每个点也可以制成孔隙度。

    Electrode for non-aqueous secondary battery and non-aqueous secondary battery using the same
    9.
    发明授权
    Electrode for non-aqueous secondary battery and non-aqueous secondary battery using the same 失效
    非水二次电池用电极及使用其的非水二次电池

    公开(公告)号:US07432016B2

    公开(公告)日:2008-10-07

    申请号:US10940049

    申请日:2004-09-14

    IPC分类号: H01M4/58 H01M4/66 H01M4/80

    摘要: An alloy material containing an intermetallic compound of metal that is alloyed with Li and metal that is not alloyed with Li, capable of repeatedly absorbing and desorbing Li, is formed on a collector made of a material that is not alloyed with Li, as a plurality of convex portions partitioned with gaps disposed thereamong, and an area the convex portions occupy on the collector is assumed to be 60 to 95% of the area of the collector. Because of this, an electrode containing an intermetallic compound capable of repeatedly absorbing and desorbing Li can be provided, which can configure a non-aqueous secondary battery having a higher charging/discharging efficiency, a larger discharging capacity, and more excellent high rate characteristics and cycle characteristics.

    摘要翻译: 在与Li不合金的材料制成的集电体上形成含有与Li合金化的金属的金属间化合物和不能与Li合金化的能够重复吸收和解吸Li的金属的合金材料 的凸起部分被间隔开的间隙分隔开,并且凸起部分占据集合体的面积被假定为集电体面积的60%至95%。 因此,可以提供含有能够重复吸收和解吸Li的金属间化合物的电极,其可以构成具有较高充电/放电效率,较大放电容量和更优异的高速率特性的非水二次电池, 循环特性。