知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

193 条记录 (耗时 0.029 秒)

    Battery separators with variable porosity
    6.
    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。

    Microporous Cell Culture Substrates
    9.
    发明申请
    Microporous Cell Culture Substrates 审中-公开
    微孔细胞培养基质

    公开(公告)号：US20120052581A1

    公开(公告)日：2012-03-01

    申请号：US13218076

    申请日：2011-08-25

    申请人： Michael Edward DeRosa ,  Hongwei Hanna Rao

    发明人： Michael Edward DeRosa ,  Hongwei Hanna Rao

    IPC分类号： C12N5/02 ,  B29C44/22

    CPC分类号： C08J7/02 ,  C08J2325/06 ,  C08J2365/00

    摘要： Surfaces of thermoplastic articles are rendered microporous by contacting the surface with a composition that includes a solvent. The article has a birefringence of 0.0001 or greater and the composition has a solvent strength configured to swell but not dissolve the polymer.

    摘要翻译： 通过使表面与包含溶剂的组合物接触，使热塑性制品的表面变成微孔。 该制品具有0.0001以上的双折射性，并且该组合物具有溶胀强度但不溶解聚合物的溶剂强度。

    Method and apparatus for making plate-like fiber-reinforced products
    10.
    发明授权
    Method and apparatus for making plate-like fiber-reinforced products 失效
    制造板状纤维增强制品的方法和装置

    公开(公告)号：US07241407B2

    公开(公告)日：2007-07-10

    申请号：US10516731

    申请日：2003-06-04

    申请人： Mikael Blomqvist ,  David Moon

    发明人： Mikael Blomqvist ,  David Moon

    IPC分类号： B29C44/22 ,  B29C44/28

    CPC分类号： B27N3/005 ,  B27N3/24 ,  B29C44/30 ,  B30B5/06 ,  Y10T428/249932 ,  Y10T428/249939 ,  Y10T428/31547

    摘要： A method for making a plate-like fibre-reinforced product to be used as building or packing material, the method comprising: placing fibres on a lower laminate; applying a binding agent on the fibres so that the fibres are surrounded by the binding agent; transferring the fibres with binding agent between the lower laminate and an upper laminate between lower and upper rotating pressing plates (4, 3); allowing the binding agent to foam up, expand and harden between the upper and lower pressing plates. In order to economically manufacture such a product with desired physical and mechanical properties, the method comprises the steps according to which the fibres are made into a three-dimensional cohesive fibre mat of fibres bound together, the fibre mat having a moisture content of 5% at the most before the binding agent is applied onto the fibre mat, the binding agent is applied onto the fibre mat and the obtained mixture is subjected to a pressure of at least 0.8 bar and 5 bar at the most and is allowed to harden to a plate-like product having a thickness of 10 to 150 mm; and the lower and upper laminate are removed from the hardening product. The invention also relates to a manufacturing apparatus and a plate-like product.

    摘要翻译： 一种制造用作建筑或包装材料的板状纤维增强制品的方法，所述方法包括：将纤维放置在下层压板上; 在纤维上施加粘合剂，使得纤维被粘合剂包围; 在下层层压板和下层和上层旋转压板（4,3）之间的上层压板之间传递具有粘合剂的纤维; 允许粘合剂在上压板和下压板之间起泡，膨胀和硬化。 为了经济地制造具有所需物理和机械性能的这种产品，该方法包括以下步骤：根据该步骤将纤维制成结合在一起的纤维的三维粘合纤维毡，纤维毡的水分含量为5％ 在粘合剂施加到纤维垫上之前最多，将粘合剂施加到纤维垫上，并将得到的混合物最大压力至少为0.8巴和5巴，并使其硬化至 板状产品，厚度为10〜150mm; 从硬化产物中除去下层和上层。 本发明还涉及制造装置和板状产品。