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    STACKED BATTERY
    1.
    发明申请
    STACKED BATTERY 审中-公开

    公开(公告)号：US20180316065A1

    公开(公告)日：2018-11-01

    申请号：US15952450

    申请日：2018-04-13

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： 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: H01M10/42 ,  H01M10/0585 ,  H01M2/26 ,  H01M4/38

    Abstract: A main object of the present disclosure is to provide a stacked battery in which sneak current caused by an unevenness of a 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 with a cathode current collecting tab, a cathode active material layer, a solid electrolyte layer, an anode active material layer, and an anode current collector with an anode current collecting tab, 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) a resistance of the cathode current collecting tab in the surface-side cell is more than a resistance of the cathode current collecting tab in the center-side cell; and condition ii) a resistance of the anode current collecting tab in the surface-side cell is more than a resistance of the anode current collecting tab in the center-side cell.

    STACKED BATTERY
    3.
    发明申请
    STACKED BATTERY 审中-公开

    公开(公告)号：US20180294470A1

    公开(公告)日：2018-10-11

    申请号：US15936970

    申请日：2018-03-27

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hajime HASEGAWA ,  Yuki MATSUSHITA ,  Mitsuru TATEISHI ,  Hideyo EBISUZAKI ,  Hideaki NISHIMURA ,  Yusuke OKUHATA ,  Shigenori HAMA ,  Norihiro OSE

    IPC: H01M2/34 ,  H01M2/20 ,  H01M10/0585

    Abstract: A short-circuit current shunt part does not cause any short circuit during normal battery use, causes stable short circuits in nail penetration, and suppresses sudden temperature rise after nail penetration. A stacked battery includes at least one short-circuit current shunt part including first and second current collector layers, and an insulating layer between the first and second current collector layers, and electric elements each including a cathode current collector layer, a cathode material layer, an electrolyte layer, an anode material layer, and an anode current collector layer, with all layers being stacked. The first current collector layer is electrically connected with the cathode current collector layer, the second current collector layer is electrically connected with the anode current collector layer, the electric elements are electrically connected to each other in parallel, and the short-circuit current shunt part insulating layer formed of a thermosetting resin sheet.

    ALL-SOLID-STATE BATTERY AND METHOD FOR PRODUCING ALL-SOLID-STATE BATTERY
    4.
    发明申请
    ALL-SOLID-STATE BATTERY AND METHOD FOR PRODUCING ALL-SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20180294469A1

    公开(公告)日：2018-10-11

    申请号：US15935687

    申请日：2018-03-26

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hajime HASEGAWA ,  Yuki MATSUSHITA ,  Mitsuru TATEISHI ,  Hideaki NISHIMURA ,  Hideyo EBISUZAKI ,  Yusuke OKUHATA ,  Norihiro OSE ,  Shigenori HAMA

    IPC: H01M2/34 ,  H01M10/0585

    Abstract: In an all-solid-state battery including at least one short-circuit current shunt part and at least one electric element which are stacked, when the battery is constrained, cracking etc. of the adhesive in the short-circuit current shunt pail is prevented.The all-solid-state battery includes at least one short-circuit current shunt part and at least one electric element which are stacked, to the all-solid-state battery constraint pressure being applied by a constraining member in a direction of stacking the short-circuit current shunt part and the electric element, wherein the short-circuit current shunt part includes a first current collector layer, a second current collector layer, and an insulating layer provided between the first and second current collector layers, all of these layers being stacked along the direction, to be adhered to each other with adhesive, the electric element includes a cathode current collector layer, a cathode material layer, a solid electrolyte layer, an anode material layer, and an anode current collector layer, all of these layers being stacked along the direction, the first current collector layer is electrically connected with the cathode current collector layer, the second current collector layer is electrically connected with the anode current collector layer, and the adhesive is provided for a zone in the short-circuit current shunt part, to the zone the constraint pressure from the constraining member not being applied.

    ALL-SOLID-STATE BATTERY
    6.
    发明申请
    ALL-SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20180294468A1

    公开(公告)日：2018-10-11

    申请号：US15924487

    申请日：2018-03-19

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hajime HASEGAWA ,  Yuki MATSUSHITA ,  Mitsuru TATEISHI ,  Hideyo EBISUZAKI ,  Hideaki NISHIMURA ,  Yusuke OKUHATA ,  Shigenori HAMA ,  Norihiro OSE

    IPC: H01M2/34 ,  H01M10/0585 ,  H01M10/0562 ,  H01M4/66

    Abstract: Disclosed is an all-solid-state battery that makes it possible for a larger rounding current flow into a short-circuit current shunt part than to each electric element when the short-circuit current shunt part and the electric elements short-circuit in nail penetration testing. The all-solid-state battery includes at least one short-circuit current shunt part and a plurality of electric elements, the short-circuit current shunt part and the electric elements being stacked, wherein the short-circuit current shunt part includes a first current collector layer, a second current collector layer, and an insulating layer provided between the first and second current collector layers, all of the layers being stacked, each of the electric elements includes a cathode current collector layer, a cathode material layer, a solid electrolyte layer, an anode material layer, and an anode current collector layer, all of the layers being stacked, the electric elements are electrically connected to each other in parallel, the first current collector layer is electrically connected with the cathode current collector layer, the second current collector layer is electrically connected with the anode current collector layer, and contact resistance between the first and second current collector layers when pressure at 100 MPa is applied is lower than that between the cathode and anode current collector layers when pressure at 100 MPa is applied.

    LITHIUM ION SECONDARY BATTERY AND SYSTEM USING SAME
    7.
    发明申请
    LITHIUM ION SECONDARY BATTERY AND SYSTEM USING SAME 有权
    锂离子二次电池和使用它的系统

    公开(公告)号：US20160294017A1

    公开(公告)日：2016-10-06

    申请号：US15084082

    申请日：2016-03-29

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hideyo EBISUZAKI ,  Shinobu OKAYAMA ,  Tetsuro KOBAYASHI

    IPC: H01M10/0587 ,  H01M2/18 ,  H01M4/131 ,  H01M10/46 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/48

    CPC classification number: H01M10/0587 ,  H01M2/0272 ,  H01M2/18 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/46 ,  H01M10/48 ,  H01M2004/028 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

    Abstract: Provided is a lithium ion secondary battery that enables lithium ion replenishment in a short period of time. The lithium ion secondary battery disclosed herein is provided with a wound electrode assembly in which a long sheet-shaped positive electrode and a long sheet-shaped negative electrode are wound such that the negative electrode is positioned on the outer side of the positive electrode; a third electrode that is disposed outside the wound electrode assembly and that has an Li supply source capable of supplying lithium ion; and a porous insulating film that is disposed between the wound electrode assembly and the third electrode and that is formed from a material usable as a separator in a battery. In this lithium ion secondary battery, the third electrode has a portion facing, across the insulating film, an outer surface of the negative electrode that constitutes the outermost circumference of the negative electrode of the wound electrode assembly, and has a portion facing, across the insulating film, a wound electrode assembly open end face that communicates with the interior of the wound electrode assembly and is an end face of the wound electrode assembly along the direction of the winding axis.

    Abstract translation: 提供了能够在短时间内进行锂离子补充的锂离子二次电池。 这里公开的锂离子二次电池设置有缠绕电极组件，其中卷绕长片状正极和长片状负极，使得负极位于正极的外侧; 第三电极，其设置在卷绕电极组件的外侧，并具有能够供给锂离子的Li供给源; 以及设置在卷绕电极组件和第三电极之间并由可用作电池中的隔膜的材料形成的多孔绝缘膜。 在该锂离子二次电池中，第三电极具有面对绝缘膜的部分，负极的外表面构成卷绕电极组件的负极的最外周，并且具有面向 绝缘膜，与卷绕电极组件的内部连通的卷绕电极组件开口端面，并且是卷绕电极组件的沿卷绕轴线方向的端面。

    ALL-SOLID-STATE BATTERY
    8.
    发明申请
    ALL-SOLID-STATE BATTERY 审中-公开

    公开(公告)号：US20190123355A1

    公开(公告)日：2019-04-25

    申请号：US16149252

    申请日：2018-10-02

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hideyo EBISUZAKI ,  Hideaki NISHIMURA

    IPC: H01M4/62 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/04 ,  H01M10/058

    Abstract: An all-solid-state battery including a laminated body with a cathode current collecting layer, cathode active material layer, solid electrolyte layer, anode active material layer, and anode current collecting layer in this order, and a restraining member that applies a restraining pressure to the laminated body in a laminated direction; containing a conductive material, an insulating inorganic substance, and a polymer, is in at least one of a position between the cathode active material layer and the cathode current collecting layer, and a position between the anode active material layer and the anode current collecting layer; the content of the insulating inorganic substance in the PTC layer is 10 volume % or more and 40 volume % or less; and a proportion of a particle size D90 of the insulating inorganic substance, D90, to a thickness of the PTC layer, TPTC, regarded as D90/TPTC is 0.6 or more and 1.0 or less.

    STACKED BATTERY
    9.
    发明申请
    STACKED BATTERY 审中-公开

    公开(公告)号：US20180316066A1

    公开(公告)日：2018-11-01

    申请号：US15952493

    申请日：2018-04-13

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： 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: H01M10/42 ,  H01M10/0525 ,  H01M4/64 ,  H01M4/38

    Abstract: A main object of the present disclosure is to provide a stacked battery in which the 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 elongation rate of the cathode current collector in the surface-side cell is less than an elongation rate of the cathode current collector in the center-side cell; and condition ii) an elongation rate of the anode current collector in the surface-side cell is less than an elongation rate of the anode current collector in the center-side cell.

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