公开(公告)号：US12021243B2

公开(公告)日：2024-06-25

申请号：US17375519

申请日：2021-07-14

Applicant: Toyota Jidosha Kabushiki Kaisha ,  Toyo Kohan Co., Ltd.

Inventor： Hajime Hasegawa ,  Shigetaka Nagamatsu ,  Shinichirou Horie ,  Koh Yoshioka ,  Toshifumi Koyanagi ,  Etsuro Tsutsumi ,  Michio Kawamura ,  Yuma Yoshizaki

IPC: H01M4/66 ,  H01M4/36 ,  H01M10/0562

CPC classification number: H01M4/661 ,  H01M4/364 ,  H01M4/666 ,  H01M10/0562

Abstract: Provided is a sulfide all-solid battery having an anode current collector of powerful adhesiveness which is difficult to be sulfurized. The sulfide all-solid-state battery including: a cathode layer; an anode layer; and a sulfide solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the anode layer has an anode mixture layer, and an anode current collector on a face of the anode mixture layer, the face being on an opposite side of the sulfide solid electrolyte layer, the anode current collector is electrolytic iron foil that does not substantially contain other elements, and the anode current collector has surface roughness Ra of 0.2 μm to 0.6 μm, and surface roughness Rz of 2 μm to 6 μm.

公开(公告)号：US11362317B2

公开(公告)日：2022-06-14

申请号：US16519176

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 ,  H01M4/36 ,  H01M10/0565 ,  H01M10/0562 ,  H01M10/0525

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 disposed between the electrode active material layer and the current collector; wherein the PTC resistor layer contains an electroconductive material, an insulating inorganic substance and a polymer; and wherein a porosity of the PTC resistor layer is from 5% to 13%.

公开(公告)号：US11075409B2

公开(公告)日：2021-07-27

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: H01M10/04 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/42 ,  H01M4/02 ,  H01M4/38 ,  H01M4/64

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.

公开(公告)号：US11069947B2

公开(公告)日：2021-07-20

申请号：US16519360

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: H01M50/581 ,  H01M4/58 ,  H01M10/0562

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 a carbon-containing electroconductive material, an insulating inorganic substance and a fluorine-containing polymer.

公开(公告)号：US10665850B2

公开(公告)日：2020-05-26

申请号：US15941116

申请日：2018-03-30

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 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/04 ,  H01M10/0562

Abstract: Disclosed is a stacked battery including at least one short-circuit current shunt part and electric elements, wherein: the shunt part includes first and second current collector layers, and an insulating layer provided between the first and second current collector layers, all of these layers being stacked; each power generation element includes a cathode current collector layer, a cathode material layer, an electrolyte layer, an anode material layer, and an anode current collector layer all of these layers being stacked; the first current collector layer is electrically connected to the cathode current collector layer and the second current collector layer to the anode current collector layer; the electric elements are electrically connected in parallel; and the shunt part next to the electric elements includes a PPTC layer between the first current collector layer and the insulating layer and/or between the second current collector layer and the insulating layer.

公开(公告)号：US09786946B2

公开(公告)日：2017-10-10

申请号：US14661541

申请日：2015-03-18

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tomoharu Sasaoka ,  Norihiro Ose ,  Hajime Hasegawa ,  Kazuhito Kato ,  Kengo Haga ,  Daichi Kosaka

IPC: H01M10/04 ,  H01M2/10 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585

CPC classification number: H01M10/0413 ,  H01M2/1077 ,  H01M10/0468 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  H01M2220/20 ,  H01M2300/0065 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49108

Abstract: A solid-state battery comprising a stack including at least one unit cell including a positive electrode layer including a positive electrode active material, a negative electrode layer including a negative electrode active material, and a solid electrolyte layer laminated between the positive and negative electrode layers, and an outer covering accommodating the stack, wherein the solid-state battery further including a pressure receiving member provided on at least a part of a periphery of the outer covering, and wherein the pressure receiving member has a thickness of less than a total thickness of the stack and the outer covering in a stacking direction of the unit cell.

公开(公告)号：US20170092988A1

公开(公告)日：2017-03-30

申请号：US15274275

申请日：2016-09-23

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Kengo Haga ,  Junichiro Nishino ,  Norihiro Ose ,  Hajime Hasegawa ,  Mitsutoshi Otaki ,  Hiroki Kubo ,  Keisuke Omori

IPC: H01M10/0585 ,  H01M4/04

CPC classification number: H01M10/0585 ,  H01M4/0404 ,  H01M4/0407 ,  H01M4/0435 ,  H01M4/0471 ,  H01M10/052 ,  H01M10/0562 ,  H01M2004/021

Abstract: A method of manufacturing an electrode laminate, which includes an active material layer and a solid electrolyte layer formed on the active material layer, includes: an active material layer forming step of forming an active material layer; and a solid electrolyte layer forming step of forming a solid electrolyte layer on the active material layer by applying a solid electrolyte layer-forming slurry to the active material layer and drying the solid electrolyte layer-forming slurry. In this method, a product of a filling factor of the active material layer and a volume proportion of an active material in the active material layer is 0.33 to 0.41.

公开(公告)号：US11316236B2

公开(公告)日：2022-04-26

申请号：US16519386

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: H01M10/0562 ,  H01M4/139 ,  H01M50/581 ,  H01M4/04 ,  H01M10/0585

Abstract: Provided is a method for producing an electrode for solid-state batteries which comprises a PTC resistor layer containing an insulating inorganic substance and in which electronic resistance is low. The production method is a method for producing an electrode for solid-state batteries, wherein the method is a method for producing an electrode for use in a solid-state battery comprising a cathode, an anode and an electrolyte layer disposed between the cathode and the anode; wherein the electrode is at least one of the cathode and the anode, and the electrode comprises a current collector, an electrode active material layer and a PTC resistor layer disposed between the current collector and the electrode active material layer.

公开(公告)号：US20220021000A1

公开(公告)日：2022-01-20

申请号：US17375519

申请日：2021-07-14

Applicant: Toyota Jidosha Kabushiki Kaisha ,  Toyo Kohan Co., Ltd.

Inventor： Hajime Hasegawa ,  Shigetaka Nagamatsu ,  Shinichirou Horie ,  Koh Yoshioka ,  Toshifumi Koyanagi ,  Etsuro Tsutsumi ,  Michio Kawamura ,  Yuma Yoshizaki

IPC: H01M4/66 ,  H01M10/0562 ,  H01M4/36

Abstract: Provided is a sulfide all-solid battery having an anode current collector of powerful adhesiveness which is difficult to be sulfurized. The sulfide all-solid-state battery including: a cathode layer; an anode layer; and a sulfide solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the anode layer has an anode mixture layer, and an anode current collector on a face of the anode mixture layer, the face being on an opposite side of the sulfide solid electrolyte layer, the anode current collector is electrolytic iron foil that does not substantially contain other elements, and the anode current collector has surface roughness Ra of 0.2 μm to 0.6 μm, and surface roughness Rz of 2 μm to 6 μm.

公开(公告)号：US11050060B2

公开(公告)日：2021-06-29

申请号：US16513806

申请日：2019-07-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Norihiro Ose ,  Tomoya Suzuki ,  Hajime Hasegawa ,  Kazuo Yaso ,  Hideaki Nishimura ,  Yuki Matsushita

IPC: H01M4/62 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0562 ,  H01M4/583 ,  H01C7/02

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.