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    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    1.
    发明申请
    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开

    公开(公告)号：US20180315970A1

    公开(公告)日：2018-11-01

    申请号：US15527945

    申请日：2015-11-17

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Junpei TERASHIMA ,  Taira SAITO ,  Ayumu KAMAKURA ,  Harunari SHIMAMURA

    IPC: H01M2/16 ,  H01M10/0525 ,  H01M10/0587

    CPC classification number: H01M2/14

    Abstract: A nonaqueous electrolyte secondary battery includes: a flat wound electrode body in which an elongated positive electrode, an elongated negative electrode, and an elongated separator (70) which electrically separates the positive electrode and the negative electrode from each other overlap each other and are wound in a longitudinal direction; and a nonaqueous electrolyte. The separator (70) includes a substrate layer (90) which is formed of a resin substrate and a heat resistance layer (80) which is formed on one surface of the substrate layer (90), and an adhesion strength between the substrate layer (90) and the heat resistance layer (80) is 0.19 N/10 mm to 400 N/10 mm.

    SECONDARY BATTERY
    2.
    发明申请
    SECONDARY BATTERY 审中-公开
    二次电池

    公开(公告)号：US20160322621A1

    公开(公告)日：2016-11-03

    申请号：US15139953

    申请日：2016-04-27

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hiroya UMEYAMA ,  Harunari SHIMAMURA ,  Tatsuya HASHIMOTO ,  Yusuke FUKUMOTO

    IPC: H01M2/16 ,  H01M10/04 ,  D01D5/00 ,  D01D5/247 ,  H01M10/0525 ,  H01M2/14

    CPC classification number: H01M2/1686 ,  D01D5/0007 ,  H01M2/145 ,  H01M2/1666 ,  H01M2/1673 ,  H01M10/0431 ,  H01M10/0525

    Abstract: Provided is a secondary battery that exhibits excellent retention of an electrolyte solution in an electrode body and excellent high rate charging and discharging characteristics. A secondary battery provided by the present invention includes an electrode body, which has a positive electrode, a negative electrode and a separator that electrically isolates the positive electrode from the negative electrode, and an electrolyte solution. In addition, the secondary battery has a non-woven fabric layer between the separator and the positive electrode and/or between the separator and the negative electrode. At least some of the fibers that constitute the non-woven fabric layer have one non-through hole in each of the fibers, with the non-through hole having an opening in one end of the fiber in a length direction thereof and extending in the length direction of the fiber. The length (LW) from the opening of the non-through hole to the deepest part of the non-through hole in the length direction is 50% or higher of the entire length (LF) of the fiber.

    Abstract translation: 本发明提供一种二次电池，其在电极体中表现出优异的电解质溶液的保持性和优异的高倍率充放电特性。 本发明提供的二次电池包括具有正极，负极和使正极与负极电隔离的隔膜的电极体和电解质溶液。 此外，二次电池在隔膜和正电极之间和/或隔板与负电极之间具有无纺布层。 构成无纺布层的至少一部分纤维在每个纤维中具有一个非通孔，非通孔在纤维的长度方向的一端具有开口，并且在 纤维的长度方向。 从非通孔的开口到非贯通孔的长度方向的最深部分的长度（LW）为纤维的整个长度（LF）的50％以上。

    NONAQUEOUS BATTERY
    4.
    发明申请
    NONAQUEOUS BATTERY 审中-公开

    公开(公告)号：US20180301708A1

    公开(公告)日：2018-10-18

    申请号：US15941503

    申请日：2018-03-30

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Koji TORITA ,  Harunari SHIMAMURA ,  Yusuke FUKUMOTO ,  Akihiro OCHIAI

    IPC: H01M4/66 ,  H01M10/0525

    Abstract: A nonaqueous battery includes a current collector that supports an electrode active material. The current collector includes a first layer, a second layer and a third layer. The second layer is interposed between the first layer and the third layer. The second layer includes 0.3 mass % or more and 1 mass % or less of magnesium and 0.2 mass % or more and 0.9 mass % or less of silicon, with a remainder being made up of aluminum. The first layer and the third layer constitute outer surfaces of the current collector. The first layer and the third layer each include 99.3 mass % or more of aluminum. In both of the first layer and the third layer, there is less than 0.3 mass % of magnesium and less than 0.2 mass % of silicon.

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    5.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非水电解质二次电池

    公开(公告)号：US20170077478A1

    公开(公告)日：2017-03-16

    申请号：US15260474

    申请日：2016-09-09

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hiroya UMEYAMA ,  Harunari SHIMAMURA ,  Yusuke FUKUMOTO ,  Koichi TORIYAMA

    IPC: H01M2/16 ,  H01M10/0525

    CPC classification number: H01M2/1686 ,  H01M2/1653 ,  H01M2/166

    Abstract: A separator includes a base material layer and a heat resistance layer. The heat resistance layer includes, in a direction of thickness of the heat resistance layer, a central portion and a first end portion and a second end portion between which the central portion lies. The first end portion includes an interface with an electrode. The second end portion includes an interface with the base material layer. A composition ratio of a resin binder to a total mass of inorganic particles and the resin binder in the first end portion and the second end portion is not lower than 8 mass % and not higher than 30 mass %. A composition ratio of the resin binder to a total mass of the inorganic particles and the resin binder in the central portion is not lower than 2 mass % and not higher than 7 mass %.

    Abstract translation: 隔板包括基材层和耐热层。 耐热层在耐热层的厚度方向上包括中心部分和第一端部以及中心部分所在的第二端部。 第一端部包括与电极的界面。 第二端部包括与基材层的界面。 第一端部和第二端部的树脂粘合剂与无机颗粒的总质量和树脂粘合剂的组成比不低于8质量％且不高于30质量％。 树脂粘合剂与中心部分的无机颗粒和树脂粘合剂的总质量的组成比不低于2质量％且不高于7质量％。

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