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公开(公告)号：US20250055040A1
公开(公告)日：2025-02-13
申请号：US18723609
申请日：2022-12-23
Inventor： Shinichi Sakamoto , Shinya Geshi
IPC: H01M10/0587 , H01M10/04 , H01M50/107 , H01M50/152
Abstract: In the present invention, an electrode terminal of a battery includes: a first connection part that encloses one side in an axial direction of an annular groove portion provided in a circumferential wall of the battery; a second connection part that encloses another side in the axial direction of the groove portion; and a bridge portion that connects the first connection part and the second connection part. When the swelling of the battery causes the groove portion to expand in the axial direction, the bridge portion ruptures and thereby blocks a current flowing between the first connection part and the second connection part.
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2.发明公开公开(公告)号：US20240170820A1
公开(公告)日：2024-05-23
申请号：US18283636
申请日：2022-01-07
Inventor： Reiko Izumi , Satoru Maeda , Shinya Geshi , Kiyomi Kozuki
IPC: H01M50/586 , H01M4/02 , H01M4/13 , H01M4/139 , H01M4/62 , H01M50/533 , H01M50/536 , H01M50/593
CPC classification number: H01M50/586 , H01M4/13 , H01M4/139 , H01M4/62 , H01M50/533 , H01M50/536 , H01M50/593 , H01M2004/021 , H01M2004/028
Abstract: A positive electrode, which is an example of this secondary battery electrode, includes: a positive electrode core material; an electrically conductive adhesive layer disposed on the positive electrode core material; and a positive electrode mixture layer disposed on the adhesive layer. The positive electrode core material includes, at one end in a lateral direction of the positive electrode core material, an exposed portion where the adhesive layer and the positive electrode mixture layer are not disposed. An insulating protection layer that includes resin is disposed on the exposed portion of the one end. A predetermined gap is provided between the protective layer and an end surface of one end in the lateral direction of the adhesive layer.
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3.发明公开公开(公告)号：US20240162503A1
公开(公告)日：2024-05-16
申请号：US18283625
申请日：2022-01-19
Inventor： Reiko Izumi , Satoru Maeda , Shinya Geshi , Kiyomi Kozuki
IPC: H01M10/42 , H01M4/04 , H01M4/139 , H01M4/75 , H01M50/536
CPC classification number: H01M10/4235 , H01M4/0404 , H01M4/139 , H01M4/75 , H01M50/536
Abstract: A positive electrode that is an example of an electrode for a secondary battery comprises: a positive electrode core material, a conductive adhesive layer disposed on the positive electrode core material, and a positive electrode mixture layer disposed on the adhesive layer, wherein: the positive electrode core material has, at one end in the short direction of the positive electrode core material, an exposed part on which the adhesive layer and the positive electrode mixture layer are not provided; an insulating protective layer containing a resin is disposed on the exposed part at the one end; and the protective layer is in contact with the end surface at one end of the adhesive layer and the positive electrode mixture layer in the short direction.
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公开(公告)号：US12272829B2
公开(公告)日：2025-04-08
申请号：US17298412
申请日：2019-11-29
Inventor： Kazutoshi Kohira , Keisuke Naito , Shinya Geshi , Hiroshi Takasaki , Kazumichi Shimizu
IPC: H01M50/107 , H01M50/147 , H01M50/152 , H01M50/184 , H01M50/186 , H01M50/593 , H01M6/02 , H01M10/02
Abstract: A battery including: a battery can including a cylinder portion including an opening edge portion at one end portion of the cylinder portion and a bottom portion that closes the other end portion of the cylinder portion; an electrode body; a sealing member that seals an opening of the opening edge portion. The sealing member includes: a sealing plate; a cap connected to the sealing plate and electrically insulated from the sealing plate; and a sealing portion sealing a space between the cylinder portion and the cap. The cap includes: a ring-shaped top plate portion opposing the opening edge portion in an axial direction of the cylinder portion; and a side wall portion covering an outer circumferential surface of the cylinder portion. The sealing portion may be a gasket provided between the cap and the cylinder portion in a compressed state. The cap is electrically connected to the cylinder portion.
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公开(公告)号：US11777165B2
公开(公告)日：2023-10-03
申请号：US17498300
申请日：2021-10-11
Inventor： Kota Shimizu , Takaaki Kassai , Kazumichi Shimizu , Shinya Geshi
IPC: H01M50/186 , H01M50/60
CPC classification number: H01M50/186 , H01M50/668
Abstract: A battery includes a metal battery can that has a tubular portion having an opening edge portion and a bottom portion; an electrode body that is in the battery can; an electrolytic solution that fills the battery can; and a sealing member that has an outer peripheral surface facing an inner peripheral surface of the opening edge portion of the tubular portion and is configured to seal the opening edge portion. A part of the inner peripheral surface of the opening edge portion and a part of the outer peripheral surface of the sealing member are joined by a melting portion, and a preventing portion is on the outer peripheral surface of the sealing member, the preventing portion being configured to prevent the electrolytic solution from rising toward a position, in which the melting portion is formed.
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Patent Agency Ranking
公开(公告)号：US20240154108A1
公开(公告)日：2024-05-09
申请号：US18281096
申请日：2022-01-06
Inventor： Shinya Geshi , Katsuya Inoue , Takeshi Ogasawara
CPC classification number: H01M4/525 , H01M4/0404 , H01M4/364 , H01M4/625 , H01M2004/028
Abstract: This positive-electrode active material for non-aqueous electrolyte secondary batteries is provided with: an electrode assembly; a bottomed cylindrical exterior body having an outer diameter of 25 mm or more, that houses the electrode assembly and is connected to a negative electrode; and, a sealing body that seals an opening at the upper end of the exterior body and is connected to a positive electrode. The positive electrode includes a positive-electrode current collector, and a positive-electrode mixture layer formed on the surface of the positive-electrode current collector and containing a positive-electrode active material and an electroconductive agent. The positive-electrode active material includes a lithium-containing composite oxide having a chalcogen compound and/or a halogen compound adhered to the surface and a layered rock salt structure. Area basis weight of the positive-electrode mixture layer is 250 g/m2 or more. In the electrode assembly, three or more positive-electrode leads are led out.
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公开(公告)号：US11469467B2
公开(公告)日：2022-10-11
申请号：US16638909
申请日：2018-08-27
Inventor： Jiro Muratsu , Shinya Geshi
IPC: H01M50/20 , H01M50/502 , H01M10/658 , H01M50/572
Abstract: In a battery module including a plurality of battery blocks, the battery block is configured such that a plurality of assembled batteries each of which is formed of the plurality of batteries are arranged in parallel. The battery has a positive-electrode terminal and a negative electrode terminal on one end portion of the battery. The assembled battery includes a positive electrode bus bar for connecting the plurality of batteries in parallel and a negative electrode bus bar for connecting the plurality of batteries in parallel, which are disposed on one end portions of the batteries. On a boundary portion between the battery blocks, the positive electrode bus bars of the respective assembled batteries of one battery block and the negative electrode bus bars of the respective assembled batteries of the other battery block are respectively connected to each other in series by an inter-block connecting bus bar.
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公开(公告)号：US10276843B2
公开(公告)日：2019-04-30
申请号：US15112155
申请日：2014-12-22
Inventor： Oose Okutani , Shinya Geshi , Hiroshi Takasaki
Abstract: A battery module includes a plurality of battery cells each having a safety mechanism, a cell case having a plurality of battery housing parts for housing the plurality of battery cells respectively in a predetermined arrangement, an insulating member disposed on one side of each of the battery cells, and a duct serving as a route for exhausting exhaust gas discharged from the battery cells. The battery housing parts have a plurality of openings for housing the battery cells. The insulating member has a through hole formed at a position facing an opening of the plurality of openings that houses corresponding one of the battery cells, and a lid part for closing an opening of the plurality of openings that houses no battery cell. The exhaust gas is discharged to the route of the duct through the through hole of the insulating member.
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公开(公告)号：US20240194951A1
公开(公告)日：2024-06-13
申请号：US18286831
申请日：2022-04-12
Inventor： Takahiro Fukuoka , Akira Kano , Shinya Geshi
IPC: H01M10/0587 , H01M4/02 , H01M4/1391 , H01M4/70 , H01M10/052 , H01M50/474 , H01M50/533 , H01M50/538
CPC classification number: H01M10/0587 , H01M4/1391 , H01M4/70 , H01M10/052 , H01M50/474 , H01M50/533 , H01M50/538 , H01M2004/027 , H01M2004/028
Abstract: A lithium secondary battery including positive and negative electrodes including positive and negative electrode current collectors with elongated sheets, respectively, and a negative electrode external terminal electrically connected to the negative electrode current collector, and a negative electrode connection portion interposed between the negative electrode current collector and the negative electrode external terminal, wherein in the negative electrode, a lithium metal deposits during charging and the lithium metal dissolves during discharging, the positive electrode, the negative electrode, and a separator form an electrode group of a cylindrical wound body, and the negative electrode connection portion includes (i) an end portion along a longitudinal direction of the negative electrode current collector projecting from one end face of the wound body, or (ii) a plurality of negative electrode tab-leads electrically connected to the negative electrode current collector and extending from the one end face of the wound body.
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公开(公告)号：US20240145700A1
公开(公告)日：2024-05-02
申请号：US18281082
申请日：2022-01-06
Inventor： Shinya Geshi , Katsuya Inoue , Takeshi Ogasawara
IPC: H01M4/525 , H01M4/131 , H01M4/62 , H01M10/0587 , H01M50/107 , H01M50/186 , H01M50/533 , H01M50/538
CPC classification number: H01M4/525 , H01M4/131 , H01M4/625 , H01M10/0587 , H01M50/107 , H01M50/186 , H01M50/533 , H01M50/538 , H01M2004/028
Abstract: This positive electrode included in an electrode assembly includes a positive electrode current collector and a positive electrode mixture laver which is formed on the surface of the positive electrode current collector and which includes a positive electrode active material and a conductive agent. The positive electrode active material contains a lithium-containing complex oxide. The lithium-containing complex oxide has a layered rock salt structure, contains substantially no Co, and contains at least Ni and Mn. The Ni content in the lithium-containing complex oxide is not less than 70 mol % with respect to the total number of moles of metal elements excluding Li. The basis weight of the positive electrode mixture layer is not less than 250 g/m2. Three or more positive electrode leads are drawn out in the electrode assembly.
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