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    • 61. 发明授权
    • Metallic porous body and method of manufacturing the same and battery current collector having the same
    • 金属多孔体及其制造方法以及具有该金属多孔体的电池集电体
    • US06465133B1
    • 2002-10-15
    • US09567014
    • 2000-05-09
    • Ayao KariyaNoriki HayashiShinji InazawaMasatoshi Majima
    • Ayao KariyaNoriki HayashiShinji InazawaMasatoshi Majima
    • H01M480
    • H01M4/80C25D5/56H01M4/808H01M2300/0014Y10T428/12042Y10T428/12111
    • A metallic porous body comprises a metallic framework having a three-dimensional network with a continuous-pore structure formed by linking sub-stantially polyhedral cells. The substantially polyhedral cells have an average cell diameter of about 200 to about 300 &mgr;m and an average window diameter of about 100 to about 200 &mgr;m. The metallic porous body can be obtained by the following method, for instance: First, a plastic porous body is provided that has an average cell diameter of about 200 to about 300 &mgr;m and an average window diameter of about 100 to about 200 &mgr;m. Second, a conductive layer is formed on a surface of the framework of the plastic porous body to produce a conductive porous body having a resistivity of about 1 k&OHgr;·cm or less. Finally, a continuous metal-plated layer is formed on a surface of the conductive layer by electroplating, with the conductive porous body serving as the cathode. The above-mentioned current collector is provided by filling an active material into the pores of the metallic porous body.
    • 金属多孔体包括具有三维网状物的金属框架,该三维网状结构具有通过连接亚稳定多面体单元形成的连续孔结构。 基本上多边形的单元具有约200至约300μm的平均泡孔直径和约100至约200μm的平均窗口直径。 金属多孔体可以通过以下方法获得,例如:首先,提供具有约200至约300μm的平均泡孔直径和约100至约200μm的平均窗口直径的塑料多孔体。 其次,在塑料多孔体的框架的表面上形成导电层,以制造电阻率为约1kOMEGA·cm以下的导电性多孔体。 最后,通过电镀在导电层的表面上形成连续的金属镀层,导电多孔体用作阴极。 通过将活性物质填充到金属多孔体的孔中来提供上述集电体。