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    SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
    4.
    发明申请
    SECONDARY BATTERY AND METHOD FOR PRODUCING SAME 有权
    二次电池及其制造方法

    公开(公告)号：US20150255833A1

    公开(公告)日：2015-09-10

    申请号：US14438265

    申请日：2013-10-02

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Hisataka Fujimaki ,  Hiroshi Kawadu

    IPC分类号： H01M10/42 ,  H01M10/44 ,  H01M10/04 ,  H01M2/16

    CPC分类号： H01M10/4242 ,  H01G11/52 ,  H01M2/1653 ,  H01M2/1686 ,  H01M4/0445 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/446 ,  H01M2200/00 ,  Y02E60/13 ,  Y02T10/7022 ,  Y10T29/49108

    摘要： Provided are a secondary battery having a configuration with which localized metal contaminant precipitation at the negative electrode can be reliably inhibited in less time, and a method for producing a secondary battery that allows reliable deactivation of metal contaminant in less time. The battery comprises a positive electrode, a negative electrode, and a separator placed between the two electrodes. The separator has an air resistance Rp≦100 sec in an in-plane direction vertical to its thickness direction and an air resistance Rt>Rp in the thickness direction. The method comprises a minimal charging step where the cell is charged to 0.01% to 0.5% capacity over at least one hour to obtain a state of charge where the positive and negative electrode potentials are at or above the oxidation and reduction potentials of a probable metal contaminant, respectively; and a step of performing initial conditioning charging.

    摘要翻译： 本发明提供一种二次电池，其具有可以在更短时间内可靠地抑制负极处的局部金属污染物沉淀的构造，以及能够在较短时间内使金属污染物可靠地失活的二次电池的制造方法。 电池包括正电极，负电极和放置在两个电极之间的隔膜。 分离器具有空气阻力Rp＆lt; nlE;垂直于其厚度方向的面内方向为100秒，厚度方向的空气阻力Rt> Rp。 该方法包括最小充电步骤，其中电池在至少一小时内充电至0.01％至0.5％容量，以获得负极电位等于或高于可能金属的氧化还原电位的电荷状态 污染物; 以及执行初始调节充电的步骤。

    Stacked battery
    5.
    发明授权
    Stacked battery 有权

    公开(公告)号：US10559845B2

    公开(公告)日：2020-02-11

    申请号：US15952301

    申请日：2018-04-13

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Hajime Hasegawa ,  Yuki Matsushita ,  Hideaki Nishimura ,  Yusuke Okuhata ,  Norihiro Ose ,  Mitsuru Tateishi ,  Shigetaka Nagamatsu ,  Takayuki Uchiyama ,  Shigenori Hama ,  Dai Kato ,  Naohiro Mashimo ,  Hideyo Ebisuzaki ,  Ayano Kobayashi ,  Hisataka Fujimaki

    IPC分类号： H01M10/00 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/02

    摘要： A main object of the present disclosure is to provide a stacked battery in which an unevenness of short circuit resistance among a plurality of cells is suppressed. The present disclosure achieves the object by providing a stacked battery comprising: a plurality of cells in a thickness direction, wherein the plurality of cells are electrically connected in parallel; each of the plurality of cells includes a cathode current collector, a cathode active material layer, a solid electrolyte layer, an anode active material layer, and an anode current collector, in this order; the stacked battery includes a surface-side cell that is located on a surface side of the stacked battery, and a center-side cell that is located on a center side rather than the surface-side cell; and the surface-side cell and the center-side cell satisfy at least one of: condition i) an electron conductivity of the cathode active material layer in the surface-side cell is less than an electron conductivity of the cathode active material layer in the center-side cell; and condition ii) an electron conductivity of the anode active material layer in the surface-side cell is less than an electron conductivity of the anode active material layer in the center-side cell.

    All solid state battery
    9.
    发明授权
    All solid state battery 有权

    公开(公告)号：US09728808B2

    公开(公告)日：2017-08-08

    申请号：US15010462

    申请日：2016-01-29

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Koichi Sugiura ,  Satoshi Yoshida ,  Hisataka Fujimaki ,  Yuki Matsushita

    IPC分类号： H01M10/0562 ,  H01M10/052

    CPC分类号： H01M10/0562 ,  H01M10/052 ,  Y02T10/7011

    摘要： The main object of the present invention is to provide an all solid state battery in which compatibility between battery performance and safety is intended. The present invention attains the object by providing an all solid state battery comprising a cathode layer containing a cathode active material, an anode layer containing an anode active material, and a solid electrolyte layer formed between the cathode layer and the anode layer, containing a first sulfide solid electrolyte material, characterized in that a ratio of ion resistance of the whole all solid state battery to ion resistance of the solid electrolyte layer is 3.8 or less, and the ion resistance of the solid electrolyte layer is 7.6 Ω·cm2 or more and 16 Ω·cm2 or less.