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    LITHIUM ION SECONDARY BATTERY
    1.
    发明公开
    LITHIUM ION SECONDARY BATTERY 审中-公开

    公开(公告)号：EP3683881A1

    公开(公告)日：2020-07-22

    申请号：EP20150883.5

    申请日：2020-01-09

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： YAMADA, Takanobu ,  KATO, Masaki

    IPC分类号： H01M10/0525 ,  H01M10/42 ,  H01M4/66 ,  H01M4/62 ,  H01M4/02

    摘要： A lithium ion secondary battery suppressed in heat generation entailed by charging and discharging is provided. A lithium ion secondary battery includes a positive electrode and a negative electrode. The positive electrode includes a positive electrode collector, a positive electrode active material layer provided at some part of the surface of the positive electrode collector, and including a positive electrode active material, and an insulation layer provided so as to be at the other part of the surface of the positive electrode collector and to be adjacent to the positive electrode active material layer. The insulation layer includes an inorganic filler, LPO, and a binder.

    METHOD OF MACHINING GEAR TOOTH SURFACE
    2.
    发明公开
    METHOD OF MACHINING GEAR TOOTH SURFACE 有权
    VERFAHREN ZUR INDUSTRIELLEN HERSTELLUNG EINERZAHNRADOBERFLÄCHE

    公开(公告)号：EP2492037A1

    公开(公告)日：2012-08-29

    申请号：EP10824824.6

    申请日：2010-10-12

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： KAWASAKI, Toshifumi ,  KATO, Masaki ,  IKEGAWA, Toru

    IPC分类号： B23F5/20

    CPC分类号： B23F17/006 ,  B23F17/00 ,  Y10T409/10795 ,  Y10T409/108109 ,  Y10T409/10954

    摘要： Provided is a method for machining a tooth plane that is formed on a circumferential surface of a cylindrical toothed member and that extends along a center axis of the toothed member. The method includes: cutting the tooth plane by a peripheral cutting edge of an end mill while keeping a rotation axis of the end mill at a predetermined steady orientation and moving the end mill parallel to the center axis of the toothed member; rotating the toothed member by a predetermined angle around the center axis of the toothed member; and cutting the tooth plane by the peripheral cutting edge of the end mill while keeping the rotation axis of the end mill at the steady orientation and moving the end mill parallel to the center axis of the toothed member.

    摘要翻译： 提供了一种用于加工形成在圆柱形齿形构件的圆周表面上并沿着齿形构件的中心轴线延伸的齿面的方法。 该方法包括：通过端铣刀的周边切削刃切割齿平面，同时将端铣刀的旋转轴线保持在预定的稳定方向，并使端铣刀平行于齿形构件的中心轴线移动; 围绕齿形构件的中心轴旋转预定角度的齿形构件; 并且通过端铣刀的周边切削刃切割齿平面，同时保持端铣刀的旋转轴线处于稳定的方向，并使端铣刀平行于齿形构件的中心轴线移动。

    NEGATIVE ELECTRODE
    3.
    发明公开
    NEGATIVE ELECTRODE 审中-公开

    公开(公告)号：EP3683866A1

    公开(公告)日：2020-07-22

    申请号：EP19217853.1

    申请日：2019-12-19

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： KATO, Masaki ,  TAKAHATA, Koji

    IPC分类号： H01M4/133 ,  H01M4/1393 ,  H01M4/587 ,  H01M10/052 ,  H01M4/02

    摘要： Provided is a negative electrode in which during manufacture thereof a negative electrode paste has an appropriate viscosity, and which is capable of preventing an increase in resistance of a battery when left at a high temperature for a long period of time. A negative electrode disclosed herein includes a negative electrode current collector, and a negative electrode active material layer supported by the negative electrode current collector. The negative electrode active material layer contains a negative electrode active material, and a trace component. The trace component is at least one element selected from the group consisting of Ti, Si, Ca, and Cr. The content of the trace component is not less than 10 mass ppm and not more than 800 mass ppm with respect to the negative electrode active material.