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    ELECTROCHEMICAL CELLS WITH IMPROVED SPIRAL-WOUND ELECTRODE ASSEMBLY
    4.
    发明申请
    ELECTROCHEMICAL CELLS WITH IMPROVED SPIRAL-WOUND ELECTRODE ASSEMBLY 审中-公开
    具有改进的螺旋电极组件的电化学电池

    公开(公告)号：US20120315523A1

    公开(公告)日：2012-12-13

    申请号：US13156884

    申请日：2011-06-09

    申请人： Michael POZIN ,  Fred Joseph Berkowitz ,  Bhupendra K. Patel

    发明人： Michael POZIN ,  Fred Joseph Berkowitz ,  Bhupendra K. Patel

    IPC分类号： H01M4/38 ,  H01M6/00 ,  H01M4/64 ,  H01M2/02 ,  H01M4/00 ,  H01M4/58

    CPC分类号： H01M6/10 ,  H01M2/26 ,  H01M4/06 ,  H01M4/382 ,  H01M4/5815 ,  H01M6/50 ,  H01M2006/5094 ,  Y10T29/49108

    摘要： A spiral-wound electrode assembly, an electrochemical cell with the spiral-wound electrode assembly, and a method of manufacturing an electrochemical cell with the spiral-wound electrode assembly are disclosed. The spiral-wound electrode assembly has a first electrode that has a first electrode active material, a leading edge and a trailing edge. The assembly has a second electrode that includes a second electrode active material, a leading edge and a trailing edge. A separator is located between the first electrode and the second electrode. The electrode assembly has an interfacial anode-to-cathode ratio of less than about 1.2. The first electrode, second electrode, and separator are wound so that the first electrode forms a layer at the outermost radius of the electrode assembly and so that the trailing edge of the second electrode extends past the trailing edge of the first electrode.

    摘要翻译： 公开了螺旋缠绕电极组件，具有螺旋卷绕电极组件的电化学电池，以及制造具有螺旋缠绕电极组件的电化学电池的方法。 螺旋卷绕电极组件具有第一电极，其具有第一电极活性材料，前缘和后缘。 组件具有包括第二电极活性材料，前缘和后缘的第二电极。 分离器位于第一电极和第二电极之间。 电极组件的界面阳极与阴极之比小于约1.2。 卷绕第一电极，第二电极和分离器，使得第一电极在电极组件的最外半径处形成层，并且使得第二电极的后缘延伸穿过第一电极的后缘。