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1.发明公开公开(公告)号：US20240363846A1
公开(公告)日：2024-10-31
申请号：US18645649
申请日：2024-04-25
IPC分类号： H01M4/38 , H01M4/02 , H01M4/1395 , H01M4/62
CPC分类号： H01M4/386 , H01M4/1395 , H01M4/623 , H01M2004/027
摘要： Disclosed is a negative electrode mixture capable of improving cycle characteristics of a secondary battery. The negative electrode mixture of the present disclosure includes active material secondary particles and a sulfide solid electrolyte, wherein the active material secondary particles include a plurality of silicon particles and a polymer binding the silicon particles, and the polymer has a property of 0.37≤εA/εB (wherein εA is bending strain of molded body A, the molded body A is a molded body consisting of the polymer and the sulfide solid electrolyte and including 20% by volume of the polymer and having a filling ratio of 90%, εB is bending strain of molded body B, and the molded body B is a molded body consisting of the sulfide solid electrolyte and having a filling ratio of 90%).
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公开(公告)号：US11108049B2
公开(公告)日：2021-08-31
申请号：US16513806
申请日：2019-07-17
发明人： Norihiro Ose , Tomoya Suzuki , Hajime Hasegawa , Kazuo Yaso , Hideaki Nishimura , Yuki Matsushita
IPC分类号： H01M4/62 , H01M10/0525 , H01M10/0565 , H01M10/0562 , H01M4/583 , H01C7/02
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.
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公开(公告)号：US10910677B2
公开(公告)日：2021-02-02
申请号：US15952450
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： H01M2/26 , H01M10/04 , H01M10/0585 , H01M10/42 , H01M4/38 , H01M4/02 , H01M10/052
摘要： An objective of the present disclosure is to provide a stacked battery that suppresses sneak current caused by an unevenness of a short circuit resistance among a plurality of cells. The present disclosure provides a stacked battery comprising: a plurality of cells in a thickness direction, wherein the plurality of cells are electrically connected in parallel; 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; wherein 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; or 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.
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公开(公告)号：US10854867B2
公开(公告)日：2020-12-01
申请号：US16394592
申请日：2019-04-25
IPC分类号： H01M2/34 , H01M10/04 , H01M10/0525
摘要： To suppress heat generation in a short-circuit current shunt part in a stacked battery that includes the short-circuit current shunt part, in the stacked battery 100 including at least one short-circuit current shunt part 10, and a stack 20 that includes a plurality of electric elements 20a, 20b which are stacked, the short-circuit current shunt part 10 includes a first part 10a that is provided on one end side in a stacking direction of the stack 20, a second part 10b that is provided on another end side therein, and a third part 10c that connects the first part 10a and the second part 10b; at the first part 10a, the first current collector layer 11 and the cathode current collector layer 21 have an electric connection part 14a but the second current collector layer 12 and the anode current collector layer 25 do not have any electric connection part, at the second part 10b, the second current collector layer 12 and the anode current collector layer 25 have an electric connection part 14b but the first current collector layer 11 and the cathode current collector layer 21 do not have any electric connection part, and at the third part 10c, the short-circuit current shunt part 10 and the stack 20 do not have any electric connection part.
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公开(公告)号：US10651456B2
公开(公告)日：2020-05-12
申请号：US15935687
申请日：2018-03-26
发明人： Hajime Hasegawa , Yuki Matsushita , Mitsuru Tateishi , Hideaki Nishimura , Hideyo Ebisuzaki , Yusuke Okuhata , Norihiro Ose , Shigenori Hama
IPC分类号： H01M2/34 , H01M10/0585 , H01M10/04 , H01M10/0562 , H01M10/0525
摘要： 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.
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公开(公告)号：US10439260B2
公开(公告)日：2019-10-08
申请号：US15610122
申请日：2017-05-31
IPC分类号： H01M10/657 , H01M10/617 , H01M10/655 , H01M10/42 , H01M10/04 , H01M10/647 , H01M10/654 , H01M10/6555 , H01M10/613 , H01M10/659 , H01M10/052 , H01M10/0562 , H01M10/0585
摘要： A battery that can inhibit temperature rising when generating heat due to a short circuit etc., while inhibiting degradation of the battery output performance, includes a plurality of unit batteries stacked together; and an endothermic layer arranged between the unit batteries adjacent in a stacking direction, the layer including an endothermic material, wherein each unit battery includes: a pair of current collectors; and at least one electrode body, wherein: the pair of current collectors are arranged to both ends of the unit battery in the stacking direction respectively, the electrode body includes a first pole active material layer, a second pole active material layer which is different from the first pole active material layer, and a solid electrolyte layer; the first and second pole active material layer are arranged between the pair of current collectors; and the current collectors have contact with the first or second pole active material layer.
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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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