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    Electric separator, method for making same and use thereof in high-power lithium cells
    9.
    发明授权
    Electric separator, method for making same and use thereof in high-power lithium cells 有权
    电分离器，其制造方法及其在大功率锂电池中的应用

    公开(公告)号：US07892673B2

    公开(公告)日：2011-02-22

    申请号：US12846940

    申请日：2010-07-30

    申请人： Volker Hennige ,  Christian Hying ,  Gerhard Hoerpel

    发明人： Volker Hennige ,  Christian Hying ,  Gerhard Hoerpel

    IPC分类号： H01M2/14

    CPC分类号： D06M11/48 ,  D06M11/45 ,  D06M11/79 ,  D06M13/513 ,  D06M23/08 ,  H01M2/145 ,  H01M2/162 ,  H01M2/1646 ,  H01M2/1666 ,  H01M2/1686 ,  H01M2/18 ,  H01M10/0525 ,  Y10T428/24124 ,  Y10T442/20 ,  Y10T442/2139 ,  Y10T442/674

    摘要： The present invention relates to electrical separators and to a process for producing them.An electrical separator is a separator used in batteries and other arrangements in which electrodes have to be separated from each other while maintaining ion conductivity for example. The separator is preferably a thin porous insulating material processing high ion perviousness, good mechanical strength and long-term stability to the chemicals and solvents used in the system, for example in the electrolyte of the battery. In batteries, the separator shall fully electrically insulate the cathode from the anode. Moreover, the separator shall be permanently elastic and follow movements in the system, for example in the electrode pack in the course of charging and discharging.This object is achieved by an electrical separator according to the invention, comprising a sheetlike flexible substrate having a multiplicity of openings and having a coating on and in said substrate, said substrate being a polymeric nonwoven and said coating being a porous electrically insulating ceramic coating, said separator being characterized by said nonwoven having a thickness of less than 30 μm, a porosity of more than 50% and a pore radius distribution in which at least 50% of the pores have a pore radius from 75 to 150 μm.

    摘要翻译： 本发明涉及电动分离器及其制造方法。 电分离器是用于电池和其它布置的隔板，其中电极必须彼此分离，同时保持例如离子传导性。 分离器优选是薄的多孔绝缘材料，其对于系统中使用的化学品和溶剂（例如在电池的电解质中）处理高离子渗透性，良好的机械强度和长期稳定性。 在电池中，分离器应使阴极与阳极完全电绝缘。 此外，分离器应是永久弹性的，并且跟随系统中的运动，例如在充电和放电过程中在电极组中。 该目的通过根据本发明的电分离器实现，其包括具有多个开口并且在所述基底上和之上具有涂层的片状柔性基底，所述基底是聚合物非织造材料，所述涂层是多孔电绝缘陶瓷涂层， 所述分离器的特征在于所述非织造材料具有小于30μm的厚度，大于50％的孔隙率和孔半径分布，其中至少50％的孔具有75至150μm的孔半径。

    Separator-electrode unit for lithium-ion batteries, method for the production and use thereof in lithium batteries
    10.
    发明授权
    Separator-electrode unit for lithium-ion batteries, method for the production and use thereof in lithium batteries 有权
    锂离子电池用隔膜电极单元，锂电池的制造方法及其制造方法

    公开(公告)号：US07858222B2

    公开(公告)日：2010-12-28

    申请号：US12846951

    申请日：2010-07-30

    申请人： Volker Hennige ,  Christian Hying ,  Gerhard Hoerpel ,  Sven Augustin

    发明人： Volker Hennige ,  Christian Hying ,  Gerhard Hoerpel ,  Sven Augustin

    IPC分类号： H01M2/26

    CPC分类号： H01M10/0525 ,  H01M2/1646 ,  H01M2/1673 ,  H01M2/1686 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/13 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/4235

    摘要： The present invention relates to separator-electrode units for lithium batteries and also to a process for their production.The separator-electrode units comprise a porous electrode which is useful as a positive electrode (cathode) or negative electrode (anode) in a lithium battery and a separator layer applied to this electrode and are characterized in that the separator-electrode units comprise a purely inorganic separator layer which comprises at least two fractions of metal oxide particles which differ from each other in their average particle size and/or in the metal. More particularly, the separator layer comprises metal oxide particles having an average particle size (Dg) which is greater than the average pore size (d) of the pores of the porous positive electrode that are bonded together by metal oxide particles having a particle size (Dk) which is smaller than the pores of the porous electrode.The separator-electrode unit of the invention has the advantage that it is simple to manufacture as one component and, since the step of laminating the separator onto the electrode can be omitted, that it can comprise a large variation of materials. In addition, a separator-electrode unit according to the invention possesses excellent mechanical stability and a very low separator thickness, which is why it can even be used in lithium high energy batteries.

    摘要翻译： 本发明涉及锂电池用隔膜电极单元及其制造方法。 分离电极单元包括可用作锂电池中的正电极（阴极）或负电极（阳极）的多孔电极和施加到该电极上的隔离层，其特征在于，隔膜 - 电极单元包括纯的 无机分离器层，其包含在其平均粒度和/或金属中彼此不同的金属氧化物颗粒的至少两个级分。 更具体地说，隔板层包括平均粒径（Dg）大于多孔正极的孔的平均孔径（d）的金属氧化物颗粒，该平均孔径（d）由具有颗粒尺寸的金属氧化物颗粒 Dk），其小于多孔电极的孔。 本发明的隔膜 - 电极单元的优点在于，作为一个部件制造简单，并且由于可以省略将隔膜层压到电极上的步骤，所以可以包括大的材料变化。 此外，根据本发明的隔膜 - 电极单元具有优异的机械稳定性和非常低的隔板厚度，这就是为什么甚至可以用于锂高能电池中的原因。