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    Methods for making battery electrode systems
    5.
    发明授权
    Methods for making battery electrode systems 有权
    制作电池电极系统的方法

    公开(公告)号：US09583767B2

    公开(公告)日：2017-02-28

    申请号：US13344539

    申请日：2012-01-05

    申请人： Mark W. Verbrugge ,  Tao Xie ,  Hamid G. Kia

    发明人： Mark W. Verbrugge ,  Tao Xie ,  Hamid G. Kia

    IPC分类号： H01M4/62 ,  H01M4/64 ,  H01M4/04

    CPC分类号： H01M4/622 ,  H01M4/04

    摘要： Methods for making battery electrode system are disclosed herein. In an example of the method, a mixture of a polymer binder, an active material and a conductive filler is deposited on a current collector. The deposited mixture is exposed to an external field having a field direction that is normal to a surface of the current collector. The exposure aligns, outward from and normal to the surface of the current collector, the active material and the conductive filler to form a plurality of discrete structures that extend outward from and normal to the surface of the current collector and are respectively aligned with a field line of the external field. Each of the plurality of discrete structures includes some of the active material and some of the conductive filler.

    摘要翻译： 本文公开了制造电池电极系统的方法。 在该方法的一个实例中，聚合物粘合剂，活性材料和导电填料的混合物沉积在集电器上。 将沉积的混合物暴露于具有与集电体的表面垂直的场方向的外部场。 曝光从集电器表面向外平行，活性材料和导电填料对齐，以形成从集电器的表面向外延伸并垂直于集电器表面的多个离散结构，并分别与一个场 外场的线。 多个离散结构中的每一个包括一些活性材料和一些导电填料。

    Battery separators with variable porosity
    7.
    发明授权
    Battery separators with variable porosity 有权
    具有可变孔隙度的电池分离器

    公开(公告)号：US09172075B2

    公开(公告)日：2015-10-27

    申请号：US12974269

    申请日：2010-12-21

    申请人： Hamid G. Kia ,  Xiaosong Huang ,  Mark W. Verbrugge

    发明人： Hamid G. Kia ,  Xiaosong Huang ,  Mark W. Verbrugge

    IPC分类号： B29D7/00 ,  C08J9/28 ,  B29C44/22 ,  H01M2/16 ,  H01M2/18 ,  H01M10/0525 ,  H01M10/0585 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587

    CPC分类号： H01M2/1653 ,  H01M2/18 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0585 ,  Y02E60/122 ,  Y10T29/49115

    摘要： A porous polymer battery separator is provided that includes variable porosity along its length. Such battery separators can increase the uniformity of the current density within electrochemical battery cells that may normally experience higher current density and higher temperatures near their terminal ends than they do near their opposite ends. By disposing a variable porosity separator between the electrodes of an electrochemical cell such that its terminal end has a lower porosity than its opposite end, the transport of ions, such as lithium ions, through the separator can be more restricted in normally high current regions and less restricted in normally low current regions, thereby increasing the overall uniformity of current density within the battery cell. Variable porosity battery separators may be produced by a modified solvent exchange process. The process may include forming a polymer-containing film having a non-uniform thickness, selectively densifiying the film so that it has a non-uniform polymer concentration, and inducing variable porosity in the film.

    摘要翻译： 提供了一种多孔聚合物电池隔板，其包括沿其长度的可变孔隙率。 这样的电池隔离器可以增加电化学电池单元内的电流密度的均匀性，其通常可能比它们的相对端附近在其终端附近经历更高的电流密度和更高的温度。 通过在电化学电池的电极之间设置可变的孔隙分离器，使得其末端具有比其相对端更低的孔隙率，通常通过隔膜的离子（例如锂离子）的输送可以在通常的高电流区域中受到更多的限制， 在正常低电流区域中较少受限制，从而增加电池单元内的电流密度的总体均匀性。 可变孔隙率电池分离器可以通过改性的溶剂交换方法生产。 该方法可以包括形成具有不均匀厚度的含聚合物的膜，选择性地使膜密实，使得其具有不均匀的聚合物浓度，并且在膜中引起可变的孔隙率。

    BATTERY SEPARATORS WITH VARIABLE POROSITY
    8.
    发明申请
    BATTERY SEPARATORS WITH VARIABLE POROSITY 有权
    具有可变孔径的电池分离器

    公开(公告)号：US20120156569A1

    公开(公告)日：2012-06-21

    申请号：US12974269

    申请日：2010-12-21

    申请人： Hamid G. Kia ,  Xiaosong Huang ,  Mark W. Verbrugge

    发明人： Hamid G. Kia ,  Xiaosong Huang ,  Mark W. Verbrugge

    IPC分类号： H01M2/16 ,  B05D5/12

    CPC分类号： H01M2/1653 ,  H01M2/18 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0585 ,  Y02E60/122 ,  Y10T29/49115

    摘要： A porous polymer battery separator is provided that includes variable porosity along its length. Such battery separators can increase the uniformity of the current density within electrochemical battery cells that may normally experience higher current density and higher temperatures near their terminal ends than they do near their opposite ends. By disposing a variable porosity separator between the electrodes of an electrochemical cell such that its terminal end has a lower porosity than its opposite end, the transport of ions, such as lithium ions, through the separator can be more restricted in normally high current regions and less restricted in normally low current regions, thereby increasing the overall uniformity of current density within the battery cell. Variable porosity battery separators may be produced by a modified solvent exchange process. The process may include forming a polymer-containing film having a non-uniform thickness, selectively densifiying the film so that it has a non-uniform polymer concentration, and inducing variable porosity in the film.

    摘要翻译： 提供了一种多孔聚合物电池隔板，其包括沿其长度的可变孔隙率。 这样的电池隔离器可以增加电化学电池单元内的电流密度的均匀性，其通常可能比它们的相对端附近在其终端附近经历更高的电流密度和更高的温度。 通过在电化学电池的电极之间设置可变的孔隙分离器，使得其末端具有比其相对端更低的孔隙率，通常通过隔膜的离子（例如锂离子）的输送可以在通常的高电流区域中受到更多的限制， 在正常低电流区域中较少受限制，从而增加电池单元内的电流密度的总体均匀性。 可变孔隙率电池分离器可以通过改性的溶剂交换方法制备。 该方法可以包括形成具有不均匀厚度的含聚合物的膜，选择性地密封膜，使得其具有不均匀的聚合物浓度，并且在膜中引起可变的孔隙率。

    BATTERY SEPARATORS WITH VARIABLE POROSITY
    9.
    发明申请
    BATTERY SEPARATORS WITH VARIABLE POROSITY 有权
    具有可变孔径的电池分离器

    公开(公告)号：US20120156568A1

    公开(公告)日：2012-06-21

    申请号：US12974094

    申请日：2010-12-21

    申请人： Hamid G. Kia ,  Xiaosong Huang ,  Mark W. Verbrugge

    发明人： Hamid G. Kia ,  Xiaosong Huang ,  Mark W. Verbrugge

    IPC分类号： H01M2/16 ,  H01M2/18

    CPC分类号： H01M2/145 ,  H01M2/1653 ,  H01M2/18 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54

    摘要： A porous polymer battery separator is provided that includes variable porosity along its length. Such battery separators can increase the uniformity of the current density within electrochemical battery cells that may normally experience higher current density and higher temperatures near their terminal ends than they do near their opposite ends. By disposing a variable porosity separator between the electrodes of an electrochemical cell such that its terminal end has a lower porosity than its opposite end, the transport of ions, such as lithium ions, through the separator can be more restricted in normally high current regions and less restricted in normally low current regions, thereby increasing the overall uniformity of current density within the battery cell. Variable porosity battery separators may be produced by a dry-stretching process or by a wet process. These processes may include forming a polymer-containing film, producing a uniform distribution of pore sites within the film, and reforming the polymer-containing film to a uniform thickness.

    摘要翻译： 提供了一种多孔聚合物电池隔板，其包括沿其长度的可变孔隙率。 这样的电池隔离器可以增加电化学电池单元内的电流密度的均匀性，其通常可能比它们的相对端附近在其终端附近经历更高的电流密度和更高的温度。 通过在电化学电池的电极之间设置可变的孔隙分离器，使得其末端具有比其相对端更低的孔隙率，通常通过隔膜的离子（例如锂离子）的输送可以在通常的高电流区域中受到更多的限制， 在正常低电流区域中较少受限制，从而增加电池单元内的电流密度的总体均匀性。 可变孔隙率电池隔板可以通过干拉伸工艺或湿法制造。 这些方法可以包括形成含聚合物的膜，产生膜内的孔隙位置的均匀分布，以及将含聚合物的膜重整为均匀的厚度。

    LAMINATED STEEL WITH COMPLIANT VISCOELASTIC CORE
    10.
    发明申请
    LAMINATED STEEL WITH COMPLIANT VISCOELASTIC CORE 有权
    具有合适粘弹性核心的层压钢

    公开(公告)号：US20110265933A1

    公开(公告)日：2011-11-03

    申请号：US12769690

    申请日：2010-04-29

    申请人： Hamid G. Kia ,  Mark W. Verbrugge ,  Douglas L. Faulkner

    发明人： Hamid G. Kia ,  Mark W. Verbrugge ,  Douglas L. Faulkner

    IPC分类号： B32B38/00

    CPC分类号： B32B15/092 ,  B32B2305/30 ,  B32B2307/102 ,  B32B2307/56 ,  B32B2311/00 ,  Y10T428/12562 ,  Y10T428/12569 ,  Y10T428/24998

    摘要： Laminated metallic sheets which comprise an interior layer of a viscoelastic polymeric compound sandwiched between outer layers of metallic sheet may exhibit enhanced properties through modification of the viscoelastic phase. In a first embodiment the elastic modulus of the viscoelastic polymeric compound may be reduced by incorporating voids, bubbles or pores within the compound. These voids which may be introduced by introduction of polymeric microspheres are effective in reducing the internal stresses induced in the laminate by temperature changes. In a second embodiment, coating the microspheres with an electrically-conductive layer may be effective in enabling resistance spot welding of such laminated materials.

    摘要翻译： 包含夹在金属片的外层之间的粘弹性聚合物的内层的层压金属片可以通过改变粘弹性相来显示增强的性能。 在第一个实施方案中，粘弹性聚合物的弹性模量可以通过在化合物中引入空隙，气泡或孔来减少。 可以通过引入聚合物微球引入的这些空隙有效地通过温度变化来减少层压材料中引起的内部应力。 在第二实施例中，用导电层涂覆微球体可以有效地实现这种层压材料的电阻点焊。