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公开(公告)号：US11362317B2
公开(公告)日：2022-06-14
申请号：US16519176
申请日：2019-07-23
发明人： Norihiro Ose , Tomoya Suzuki , Hajime Hasegawa , Kazuo Yaso , Hideaki Nishimura , Yuki Matsushita
IPC分类号： H01M4/13 , H01M4/36 , H01M10/0565 , H01M10/0562 , H01M10/0525
摘要： 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%.
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公开(公告)号：US11075409B2
公开(公告)日：2021-07-27
申请号：US15952493
申请日：2018-04-13
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： H01M10/04 , H01M10/0525 , H01M10/0562 , H01M10/0585 , H01M10/42 , H01M4/02 , H01M4/38 , H01M4/64
摘要： 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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公开(公告)号：US11069947B2
公开(公告)日：2021-07-20
申请号：US16519360
申请日：2019-07-23
发明人： Norihiro Ose , Tomoya Suzuki , Hajime Hasegawa , Kazuo Yaso , Hideaki Nishimura , Yuki Matsushita
IPC分类号： H01M50/581 , H01M4/58 , H01M10/0562
摘要： 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.
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公开(公告)号：US10665850B2
公开(公告)日：2020-05-26
申请号：US15941116
申请日：2018-03-30
发明人： Hajime Hasegawa , Yuki Matsushita , Mitsuru Tateishi , Hideyo Ebisuzaki , Hideaki Nishimura , Yusuke Okuhata , Shigenori Hama , Norihiro Ose
IPC分类号： H01M2/34 , H01M10/0525 , H01M10/0585 , H01M10/04 , H01M10/0562
摘要： 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.
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公开(公告)号：US09786946B2
公开(公告)日：2017-10-10
申请号：US14661541
申请日：2015-03-18
发明人： Tomoharu Sasaoka , Norihiro Ose , Hajime Hasegawa , Kazuhito Kato , Kengo Haga , Daichi Kosaka
IPC分类号： H01M10/04 , H01M2/10 , H01M10/052 , H01M10/0562 , H01M10/0585
CPC分类号： H01M10/0413 , H01M2/1077 , H01M10/0468 , H01M10/052 , H01M10/0562 , H01M10/0585 , H01M2220/20 , H01M2300/0065 , Y02E60/122 , Y02P70/54 , Y10T29/49108
摘要： 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.
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6.发明申请公开(公告)号：US20170092988A1
公开(公告)日：2017-03-30
申请号：US15274275
申请日：2016-09-23
发明人： Kengo Haga , Junichiro Nishino , Norihiro Ose , Hajime Hasegawa , Mitsutoshi Otaki , Hiroki Kubo , Keisuke Omori
IPC分类号： H01M10/0585 , H01M4/04
CPC分类号： H01M10/0585 , H01M4/0404 , H01M4/0407 , H01M4/0435 , H01M4/0471 , H01M10/052 , H01M10/0562 , H01M2004/021
摘要： 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.
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公开(公告)号：US11387439B2
公开(公告)日：2022-07-12
申请号：US16749792
申请日：2020-01-22
摘要： A main object of the present disclosure is to provide an anode layer with little resistance increase due to charge and discharge. In the present disclosure, the above object is achieved by providing an anode layer comprising: an anode active material including a Nb element, a W element, and an O element; and a solid electrolyte, and an expansion coefficient of the anode active material when charged to 200 mAh per 1 g is 1.4% or more and 5% or less.
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公开(公告)号：US11302953B2
公开(公告)日：2022-04-12
申请号：US15952332
申请日：2018-04-13
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： H01M10/0525 , H01M4/66 , H01M4/38 , H01M10/42 , 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 a contact resistance between the cathode current collector and the anode current collector in the surface-side cell is more than a contact resistance between the cathode current collector and the anode current collector in the center-side cell.
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公开(公告)号：US11139462B2
公开(公告)日：2021-10-05
申请号：US16519064
申请日：2019-07-23
发明人： Norihiro Ose , Tomoya Suzuki , Hajime Hasegawa , Kazuo Yaso , Hideaki Nishimura , Yuki Matsushita
IPC分类号： H01M4/13 , H01M4/62 , H01M50/581 , H01M4/02
摘要： 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.
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公开(公告)号：US10910666B2
公开(公告)日：2021-02-02
申请号：US15950665
申请日：2018-04-11
发明人： Norihiro Ose , Hajime Hasegawa , Mitsutoshi Otaki , Yusuke Kintsu
IPC分类号： H01M10/0525 , H01M4/38 , H01M10/0562 , H01M4/62 , H01M4/04 , H01M4/48 , H01M10/44 , H01M4/02
摘要： Disclosed is a method for producing an all-solid-state lithium ion secondary battery being excellent in cycle characteristics. The production method may be a method for producing an all-solid-state lithium ion secondary battery, wherein the method comprises an anode mixture forming step of obtaining an anode mixture by drying a raw material for an anode mixture, which contains an anode active material, a solid electrolyte and an electroconductive material; and wherein, for the anode mixture after being dried in the anode mixture forming step, a voidage V of the inside of the anode mixture calculated by the following formula (1) is 43% or more and 54% or less: V=100−(D1/D0)×100 Formula (1).
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