知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

6 records (took 0.026 seconds)

    POROUS ELECTRODE SUBSTRATE, METHOD FOR PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL
    3.
    发明申请
    POROUS ELECTRODE SUBSTRATE, METHOD FOR PRODUCING THE SAME, MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL 有权
    多孔电极基板，其制造方法，膜电极组件和聚合物电解质燃料电池

    公开(公告)号：US20130273454A1

    公开(公告)日：2013-10-17

    申请号：US13892561

    申请日：2013-05-13

    Applicant: Mitsubishi Rayon Co., Ltd.

    Inventor： Kazuhiro Sumioka ,  Yoshihiro Sako

    IPC: H01M4/86

    CPC classification number: H01M4/8605 ,  D04H1/4242 ,  D04H1/4382 ,  D21H13/50 ,  D21H15/02 ,  H01B1/122 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/1007 ,  Y02E60/521 ,  Y10T29/49117 ,  Y10T428/30

    Abstract: Provided is a porous electrode substrate having high mechanical strength, good handling properties, high thickness precision, little undulation, and adequate gas permeability and conductivity. Also provided is a method for producing a porous electrode substrate at low costs. A porous electrode substrate is produced by joining short carbon fibers (A) via mesh-like of carbon fibers (B) having an average diameter of 4 μm or smaller. Further provided are a membrane-electrode assembly and a polymer electrolyte fuel cell that use this porous electrode membrane. A porous electrode substrate is obtained by subjecting a precursor sheet, in which short carbon fibers (A) and short carbon fiber precursors (b) having an average diameter of 5 μm or smaller have been dispersed, to carbonization treatment after optional hot press forming and optional oxidization treatment.

    Abstract translation: 本发明提供机械强度高，处理性能好，厚度精度高，波动小，气体渗透性和导电性好的多孔电极基板。 还提供了一种以低成本制造多孔电极基板的方法。 通过使平均直径为4μm以下的碳纤维（B）的网状连接短碳纤维（A）来制造多孔电极基板。 还提供了使用该多孔电极膜的膜 - 电极组件和聚合物电解质燃料电池。 多孔电极基板是通过对其中分散有平均粒径为5μm以下的短碳纤维（A）和短碳纤维前体（b））的前体片进行碳热处理而得到的，任选的热压成型后， 可选氧化处理。

    POROUS ELECTRODE SUBSTRATE, METHOD FOR MANUFACTURING SAME, PRECURSOR SHEET, MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL
    4.
    发明申请
    POROUS ELECTRODE SUBSTRATE, METHOD FOR MANUFACTURING SAME, PRECURSOR SHEET, MEMBRANE ELECTRODE ASSEMBLY, AND POLYMER ELECTROLYTE FUEL CELL 有权
    多孔电极基板，其制造方法，前端板，膜电极组件和聚合物电解质燃料电池

    公开(公告)号：US20160204443A1

    公开(公告)日：2016-07-14

    申请号：US15077613

    申请日：2016-03-22

    Applicant: MITSUBISHI RAYON CO., LTD.

    Inventor： Hiroto TATSUNO ,  Kazuhiro Sumioka ,  Tadao Samejima

    IPC: H01M4/88 ,  H01M4/96 ,  H01M4/86

    CPC classification number: H01M4/8885 ,  C04B35/83 ,  C04B38/0022 ,  C04B2111/00853 ,  C04B2235/48 ,  C04B2235/5248 ,  C04B2235/526 ,  C04B2235/5264 ,  D21H13/50 ,  D21H17/46 ,  D21H19/24 ,  D21H25/06 ,  H01M4/8605 ,  H01M4/8652 ,  H01M4/8807 ,  H01M4/8875 ,  H01M4/96 ,  H01M8/0234 ,  H01M2008/1095 ,  Y02P70/56

    Abstract: According to the present invention, a porous electrode substrate with greater sheet strength, lower production cost, and excellent gas permeability and conductivity as well as its manufacturing method are provided. Also provided are a precursor sheet for forming such a substrate, and a membrane electrode assembly and a polymer electrolyte fuel cell containing such a substrate. The method for manufacturing such a porous electrode substrate includes the following steps [1]˜[3]: [1] a step for manufacturing a sheet material in which short carbon fibers (A) are dispersed; [2] a step for manufacturing a precursor sheet by adding a water-soluble phenolic resin and/or water-dispersible phenolic resin to the sheet material; and [3] a step for carbonizing the precursor sheet at a temperature of 1000° C. or higher. The present invention also relates to a porous electrode substrate obtained by such a manufacturing method as well as a precursor sheet to be used for manufacturing the substrate, a membrane electrode assembly and a polymer electrolyte fuel cell.

    Abstract translation: 根据本发明，提供了具有更大的片强度，更低的生产成本和优异的透气性和导电性的多孔电极基片及其制造方法。 还提供了用于形成这种基板的前体片，以及包含这种基底的膜电极组件和聚合物电解质燃料电池。 制造这种多孔电极基板的方法包括以下步骤[1]〜[3]：[1]制造其中分散短碳纤维（A）的片材的步骤; [2]通过向片材中添加水溶性酚醛树脂和/或水分散性酚醛树脂来制造前体片的工序; 和[3]在1000℃以上的温度下碳化前体片的工序。 本发明还涉及通过这样的制造方法获得的多孔电极基板以及用于制造基板，膜电极组件和聚合物电解质燃料电池的前体片。

    POROUS ELECTRODE SUBSTRATE, METHOD FOR MANUFACTURING SAME, MEMBRANE-ELECTRODE ASSEMBLY, AND SOLID POLYMER FUEL CELL
    5.
    发明申请
    POROUS ELECTRODE SUBSTRATE, METHOD FOR MANUFACTURING SAME, MEMBRANE-ELECTRODE ASSEMBLY, AND SOLID POLYMER FUEL CELL 审中-公开
    多孔电极基板，其制造方法，膜电极组件和固体聚合物燃料电池

    公开(公告)号：US20150155568A1

    公开(公告)日：2015-06-04

    申请号：US14414211

    申请日：2013-07-18

    Applicant: Mitsubishi Rayon Co., Ltd.

    Inventor： Kazuhiro Sumioka

    IPC: H01M4/86 ,  H01M4/88 ,  H01M8/10

    CPC classification number: H01M4/8668 ,  D04H1/4242 ,  D04H1/60 ,  H01M4/8605 ,  H01M4/8807 ,  H01M4/8846 ,  H01M4/8875 ,  H01M4/8882 ,  H01M8/0234 ,  H01M8/1004 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02P70/56

    Abstract: A method for manufacturing a porous electrode substrate, comprising: step (1) of dispersing the pieces of a short carbon fiber (A) and a fiber (b) containing a polymer having a softening point of 250° or higher but lower than 400° C. and a particulate substance having a melting point of 400° C. or higher, in a planar direction, and thereby obtaining a precursor sheet; step (2) of impregnating the precursor sheet with a carbon powder (C2) containing powdered carbon, and a fluorine-based resin containing elemental fluorine and a resin component; and step (3) of heat treating the impregnated precursor sheet at a temperature of 250° C. or higher but lower than 400° C. in the presence of oxygen.

    Abstract translation: 一种多孔电极基板的制造方法，其特征在于，包括：将短纤维（A）和软化点为250以上且低于400°的聚合物的纤维（b）分散的工序（1） 并且在平面方向上具有熔点为400℃以上的颗粒物质，从而获得前体片; 用含有碳粉的碳粉（C2）和含有元素氟和树脂成分的氟系树脂浸渍前体片的工序（2） 以及在氧存在下，在250℃以上且低于400℃的温度下对浸渍的前体片进行热处理的工序（3）。

Patent Agency Ranking