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    MANUFACTURING METHOD OF ALL-SOLID BATTERY
    22.
    发明申请
    MANUFACTURING METHOD OF ALL-SOLID BATTERY 有权
    全固态电池的制造方法

    公开(公告)号：US20150180076A1

    公开(公告)日：2015-06-25

    申请号：US14557711

    申请日：2014-12-02

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hajime HASEGAWA ,  Norihiro OSE ,  Tomoharu SASAOKA ,  Kazuhito KATO ,  Kengo HAGA ,  Daichi KOSAKA

    IPC: H01M8/24 ,  H01M8/10

    CPC classification number: H01M10/0468 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/48 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011 ,  Y10T29/49004 ,  Y10T29/49108

    Abstract: A manufacturing method of an all-solid battery includes fabricating a single battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer arranged between the positive electrode layer and the negative electrode layer; fabricating a plurality of battery packs including the plurality of single batteries; confining a plurality of battery packs by an equal confining pressure; measuring the electrical characteristics of the plurality of confined battery packs; determining the battery pack whose measured electrical characteristics are the worst of the plurality of battery packs; reducing the confining pressures of the other battery packs so that the electrical characteristics of the other battery packs are equal to that of the battery pack whose electrical characteristics have been determined to be the worst; and electrically connecting in parallel the battery packs.

    Abstract translation: 全固体电池的制造方法包括制造包括正电极层，负极层和布置在正极层和负极层之间的固体电解质层的单电池; 制造包括所述多个单电池的多个电池组; 以相等的围压限制多个电池组; 测量所述多个限制电池组的电特性; 确定其测量的电特性是所述多个电池组中最差的电池组; 降低其他电池组的限制压力，使得其他电池组的电气特性与电气特性被确定为最差的电池组的电气特性相同; 并且电连接并联电池组。

    BATTERY
    24.
    发明申请
    BATTERY 有权

    公开(公告)号：US20250141071A1

    公开(公告)日：2025-05-01

    申请号：US18824915

    申请日：2024-09-05

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Kota OHATA ,  Masahiro ISHIZUKA ,  Hajime HASEGAWA ,  Mitsuru TATEISHI ,  Norihiro OSE ,  Masashi CHIHARA

    IPC: H01M50/586 ,  H01M50/105 ,  H01M50/59

    Abstract: A battery, includes: electrode body including positive and negative electrodes being alternately layered in a first direction with separator provided therebetween. The positive electrode current collector has a first burr and the negative electrode current collector has a second burr. In the battery, either the following (A) or (B) is satisfied: (A) plural first burrs do not include a pair of first burrs in which protrusion directions of adjacent first burrs differ, and plural second burrs do not include a pair of second burrs in which protrusion directions of adjacent second burrs differ; or (B) plural first burrs include only one pair of first burrs in which protrusion directions of adjacent first burrs differ, and plural second burrs include only one pair of second burrs in which protrusion directions of adjacent second burrs differ.

    BATTERY AND MODULE
    25.
    发明申请
    BATTERY AND MODULE 有权

    公开(公告)号：US20250141065A1

    公开(公告)日：2025-05-01

    申请号：US18824922

    申请日：2024-09-05

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hajime HASEGAWA ,  Mitsuru TATEISHI ,  Norihiro OSE ,  Masashi CHIHARA ,  Kota OHATA ,  Masahiro ISHIZUKA

    IPC: H01M50/54 ,  H01M50/536

    Abstract: A battery includes a layer-type electrode body, a laminate exterior body, a positive electrode tab, and a negative electrode tab. In the electrode body, a positive electrode sheet and a negative electrode sheet are alternately layered in a layering direction via a separator sheet. The positive electrode tab protrudes from the laminate exterior body toward one side in a first direction orthogonal to the layering direction. The negative electrode tab protrudes from the laminate exterior body toward the one or another side in the first direction. The electrode body has an overlap region in which only plural separator sheets overlap at both edge regions in a second direction orthogonal to the layering direction and to the first direction. At least one of the two overlap regions has plural welded portions at which the plural separator sheets are welded. The plural welded portions are discretely formed along the first direction.

    METHOD FOR PRODUCING ALL SOLID-STATE BATTERY, AND ALL SOLID-STATE BATTERY
    26.
    发明公开
    METHOD FOR PRODUCING ALL SOLID-STATE BATTERY, AND ALL SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20240250296A1

    公开(公告)日：2024-07-25

    申请号：US18584473

    申请日：2024-02-22

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Motoshi ISONO ,  Norihiro OSE ,  Tomoya SUZUKI

    IPC: H01M10/0562 ,  H01M10/052 ,  H01M10/0585

    CPC classification number: H01M10/0562 ,  H01M10/052 ,  H01M10/0585 ,  H01M2300/0068

    Abstract: It is suppressed that an active material particle enters into or penetrates through a solid electrolyte layer when an active material layer and the solid electrolyte layer are pressed and that short circuits between a cathode and an anode occur. A method for producing an all solid-state battery includes: a first step of stacking an active material layer over at least one surface of a solid electrolyte layer to constitute a stack; and a second step of pressing the stack to constitute a compact, wherein in the first step, the active material layer contains a secondary particle of an active material, and in the second step, the secondary particle is crushed to primary particles by said pressing, the secondary particle being present in an interfacial portion between the active material layer and the solid electrolyte layer.

    ELECTRODE FOR SOLID-STATE BATTERIES AND SOLID-STATE BATTERY
    28.
    发明申请
    ELECTRODE FOR SOLID-STATE BATTERIES AND SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20200035988A1

    公开(公告)日：2020-01-30

    申请号：US16519064

    申请日：2019-07-23

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Norihiro OSE ,  Tomoya SUZUKI ,  Hajime HASEGAWA ,  Kazuo YASO ,  Hideaki NISHIMURA ,  Yuki MATSUSHITA

    IPC: H01M4/13 ,  H01M4/62 ,  H01M2/34

    Abstract: An electrode for solid-state batteries, comprising a PTC resistor layer, and a solid-state battery comprising the electrode. The electrode may be an electrode for solid-state batteries, wherein the electrode comprises an electrode active material layer, a current collector and a PTC resistor layer which is disposed between the electrode active material layer and the current collector and which is in contact with the electrode active material layer; wherein the PTC resistor layer contains an electroconductive material, an insulating inorganic substance and a polymer; and wherein a surface roughness Ra of an electrode active material layer-contacting surface of the PTC resistor layer, is 1.1 μm or less.

    METHOD FOR PRODUCTION OF ALL-SOLID-STATE BATTERY
    30.
    发明申请
    METHOD FOR PRODUCTION OF ALL-SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20190148765A1

    公开(公告)日：2019-05-16

    申请号：US16128893

    申请日：2018-09-12

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Mitsutoshi OTAKI ,  Norihiro OSE ,  Shigenori HAMA

    IPC: H01M10/058 ,  H01M10/44 ,  H01M10/0562 ,  H01M4/38 ,  H01M4/1395 ,  H01M4/04

    Abstract: [Problem] To provide a method for the production of an all-solid-state battery using an alloy-based negative electrode active material in which it is possible to suppress degradation in performance of the all-solid-state battery during actual use while the restraint pressure during actual use of the all-solid-state battery is relatively small.[Solving Means] The method for producing an all-solid-state battery of the present disclosure produces an all-solid-state battery having a battery laminate comprising a positive electrode current collector layer, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector layer laminated in this order, wherein the battery laminate is restrained in the lamination direction by an actual use restraint member. The negative electrode active material layer contains particles of an alloy-based negative electrode active material. The method of the present disclosure comprises the steps of, in this order, charging and discharging the battery laminate in a state in which the batter, laminate is restrained in the lamination direction by a manufacturing restraint member and restraining the battery laminate in the lamination direction by the actual use restraint member, wherein when the restraint pressure applied by the manufacturing restraint member at the end of the discharging is a fourth restraint pressure and the restraint pressure applied by the actual use restraint member at the end of the discharging is a fifth restraint pressure, the fourth restraint pressure is greater than the fifth restraint pressure.

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