Method of manufacturing the electrode for electrochemical devices, and for an electrochemical element electrode

    公开(公告)号:JP5365106B2

    公开(公告)日:2013-12-11

    申请号:JP2008224899

    申请日:2008-09-02

    申请人: Tdk株式会社

    摘要: An electrode manufacturing method which can form a flat short-circuit prevention coating film (solid polyelectrolyte layer) having a uniform thickness and prevent short circuits from occurring in an electrochemical device is provided. The electrode manufacturing method comprises a first step of applying an active material layer coating material containing an active material particle, an active material layer binder, and a first solvent to a current collector so as to form a coating film made of the active material layer coating material; a second step of applying a second solvent to the coating film; and a third step of applying a solid polyelectrolyte layer coating material containing a solid polyelectrolyte, a solid polyelectrolyte layer binder, and a third solvent to the coating film coated with the second solvent. The first solvent is a good solvent for the active material layer binder, the second solvent is a poor solvent for the solid polyelectrolyte layer binder, and the third solvent is a good solvent for the solid polyelectrolyte layer binder.

    摘要翻译: 提供一种电极制造方法,其可以形成具有均匀厚度并防止在电化学装置中发生短路的扁平短路防止涂膜(固体聚电解质层)。 电极制造方法包括:将第一工序,将含有活性物质粒子,活性物质层粘合剂和第一溶剂的活性物质层涂料涂布在集电体上,形成由活性物质层涂层 材料; 将第二溶剂施加到涂膜的第二步骤; 以及第三步骤,将包含固体聚电解质,固体聚电解质层粘合剂和第三溶剂的固体聚电解质层涂料涂覆到涂覆有第二溶剂的涂膜上。 第一溶剂是活性物质层粘合剂的良溶剂,第二溶剂是固体聚电解质层粘合剂的不良溶剂,第三溶剂是用于固体聚电解质层粘合剂的良溶剂。

    An electrochemical device
    9.
    发明专利

    公开(公告)号:JP5239445B2

    公开(公告)日:2013-07-17

    申请号:JP2008081294

    申请日:2008-03-26

    申请人: Tdk株式会社

    摘要: An electrochemical device comprises an electrode matrix including a multilayer structure composed of a positive electrode, a negative electrode, and a first separator, and first and second dummy electrodes electrically connected to the positive and negative electrodes, respectively. The first and second dummy electrodes have respective opposing parts opposing each other through a second separator at an outer peripheral part of the electrode matrix. One or each of the first and second dummy electrodes has a resistance control layer at least on a side where the opposing parts oppose each other. The resistance control layer has such a resistance value that an estimated internal short circuit current between the first and second dummy electrodes is equivalent to 0.09 C to 1.00 C. The first and second dummy electrodes are adapted to short-circuit each other at a lower temperature than the positive and negative electrodes do.