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2. 发明申请

WO2004102597A3 COMPOSITE PARTICLE FOR ELECTRODE AND METHOD FOR PRODUCING SAME, ELECTRODE AND METHOD FOR PRODUCING SAME, AND ELECTROCHEMICAL DEVICE AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译：电极用复合颗粒及其制造方法，电极及其制造方法，电化学装置及其制造方法
公开(公告)号：WO2004102597A3
公开(公告)日：2005-02-17
申请号：PCT/JP2004006879
申请日：2004-05-14
申请人： TDK CORP , SUZUKI TADASHI , KURIHARA MASATO , MARUYAMA SATOSHI
发明人： SUZUKI TADASHI , KURIHARA MASATO , MARUYAMA SATOSHI
IPC分类号： H01M4/02 , H01M4/04 , H01M4/62 , H01M4/36 , H01G9/058
CPC分类号： H01M4/02 , H01M4/04 , H01M4/621 , H01M4/624
摘要： A composite particle for electrodes is disclosed which is formed through a granulating process wherein a conductive assistant agent and a binder are adhered to and integrated with particles composed of an electrode active material. This granulating process preferably includes a step for preparing a material liquid containing the binder, the conductive assistant agent and a solvent; a step for creating a fluidized bed of electrode active material particles by introducing the electrode active material particles into a fluid vessel; and a step wherein the material liquid is sprayed into the fluidized bed so that the material liquid is adhered to the electrode active material particles and dried thereon, and then the solvent is removed from the material liquid adhered to the electrode active material particles, thereby closely binding the electrode active material particles and particles of the conductive assistant agent by means of the binder. By using the thus-obtained composite particles as a component material for an electrode, it becomes possible to sufficiently reduce the internal resistance of the electrode. Furthermore, by using such an electrode as the anode and/or the cathode of an electrochemical device, it becomes possible to sufficiently increase the power density of the electrochemical device.
摘要翻译：公开了一种用于电极的复合颗粒，其通过造粒方法形成，其中导电助剂和粘合剂粘附并与由电极活性材料组成的颗粒结合。该造粒方法优选包括制备含有粘合剂，导电助剂和溶剂的材料液的步骤; 通过将电极活性物质粒子引入流体容器中而形成电极活性物质粒子的流化床的工序; 以及将材料液喷入流化床中使得材料液粘附到电极活性物质颗粒上并在其上干燥的步骤，然后从粘附到电极活性材料颗粒的材料液体中除去溶剂，从而紧密地通过粘合剂粘结电极活性物质颗粒和导电助剂的颗粒。通过使用由此获得的复合颗粒作为电极的组分材料，可以充分降低电极的内部电阻。此外，通过使用这样的电极作为电化学装置的阳极和/或阴极，可以充分提高电化学装置的功率密度。

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