Anode for secondary battery, secondary battery, and method of manufacturing anode for secondary battery
    57.
    发明授权
    Anode for secondary battery, secondary battery, and method of manufacturing anode for secondary battery 有权
    二次电池用阳极,二次电池,二次电池用阳极的制造方法

    公开(公告)号:US08722245B2

    公开(公告)日:2014-05-13

    申请号:US11420276

    申请日:2006-05-25

    IPC分类号: H01M4/38 H01M4/58 H01M4/04

    摘要: An anode for secondary battery capable of improving cycle characteristics, a secondary battery using the anode, and a method of manufacturing an anode for secondary battery are provided. An anode active material layer is formed by vapor phase deposition method, and contains Si as an element. In the anode active material layer, there are a plurality of primary particles grown in the thickness direction. The primary particles aggregate and form a plurality of secondary particles. At least some of the primary particles have shape curved in the identical direction to an anode current collector on the cross section in the thickness direction. Thereby, stress due to expansion and shrinkage due to charge and discharge can be relaxed.

    摘要翻译: 提供了能够改善循环特性的二次电池的阳极,使用该阳极的二次电池以及二次电池用阳极的制造方法。 阳极活性物质层通过气相沉积法形成,并含有Si作为元素。 在负极活性物质层中,存在在厚度方向上生长的多个一次粒子。 初级颗粒聚集并形成多个次级颗粒。 至少一些初级粒子在与厚度方向的横截面上的阳极集电体相同的方向上具有弯曲形状。 由此,可以放松由于充放电引起的膨胀和收缩引起的应力。

    Anode and battery
    58.
    发明授权
    Anode and battery 有权
    阳极和电池

    公开(公告)号:US08669012B2

    公开(公告)日:2014-03-11

    申请号:US12127271

    申请日:2008-05-27

    IPC分类号: H01M6/14 H01M4/36 H01M4/02

    摘要: A battery capable of improving cycle characteristics is provided. An anode includes: an anode active material layer including an anode active material on an anode current collector, the anode active material including silicon (Si) and having a plurality of pores, in which after electrode reaction, the volumetric capacity of a pore group with a diameter ranging from 3 nm to 200 nm both inclusive per unit weight of silicon is 0.3 cm3/g or less, and the rate of change in the amount of mercury intruded into the plurality of pores is distributed so as to have a peak in a diameter range from 200 nm to 15000 nm both inclusive, the rate of change in the amount of mercury intruded being measured by mercury porosimetry.

    摘要翻译: 提供了能够改善循环特性的电池。 阳极包括:在阳极集电器上包括阳极活性材料的负极活性材料层,所述负极活性材料包括硅(Si)并且具有多个孔,其中在电极反应之后,孔组的体积容量与 每单位重量硅含量为3nm〜200nm的直径为0.3cm 3 / g以下,并且分布在多个孔内的汞的变化率成为峰值, 直径范围为200nm至15000nm,通过汞孔率法测量入侵的汞的量的变化率。

    Anode and battery
    59.
    发明授权
    Anode and battery 有权
    阳极和电池

    公开(公告)号:US08173299B2

    公开(公告)日:2012-05-08

    申请号:US13038015

    申请日:2011-03-01

    IPC分类号: H01M4/58

    摘要: An anode capable of relaxing the stress concentration and improving the characteristics and a battery using it are provided. The anode includes an anode current collector and an anode active material layer containing silicon (Si) as an element, wherein the anode active material layer has a metal element increasing and decreasing region in which a metal element is contained as an element, and a concentration of the metal element is increased and then decreased in a thickness direction.

    摘要翻译: 提供能够缓和应力集中和提高特性的阳极和使用它的电池。 阳极包括阳极集电体和含有硅(Si)作为元素的负极活性物质层,其中负极活性物质层具有金属元素增加和减少的区域,其中含有金属元素作为元素,并且浓度 的金属元素增加,然后在厚度方向上减小。

    ANODE AND BATTERY
    60.
    发明申请
    ANODE AND BATTERY 有权
    阳极和电池

    公开(公告)号:US20110151326A1

    公开(公告)日:2011-06-23

    申请号:US13038015

    申请日:2011-03-01

    IPC分类号: H01M4/58

    摘要: An anode capable of relaxing the stress concentration and improving the characteristics and a battery using it are provided. The anode includes an anode current collector and an anode active material layer containing silicon (Si) as an element, wherein the anode active material layer has a metal element increasing and decreasing region in which a metal element is contained as an element, and a concentration of the metal element is increased and then decreased in a thickness direction.

    摘要翻译: 提供能够缓和应力集中和提高特性的阳极和使用它的电池。 阳极包括阳极集电体和含有硅(Si)作为元素的负极活性物质层,其中负极活性物质层具有金属元素增加和减少的区域,其中含有金属元素作为元素,并且浓度 的金属元素增加,然后在厚度方向上减小。