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公开(公告)号：US11437682B2
公开(公告)日：2022-09-06
申请号：US16466163
申请日：2017-12-13
Inventor： Akira Takano , Hiroshi Takata , Keisuke Shimizu
IPC: H01M50/35 , H01M10/613 , H01M50/30 , H01M50/367 , H01M50/284 , H01M10/6566 , H01M50/20 , H01M50/342
Abstract: A battery module includes a partition wall to separate an upper space from a lower space, a first plate that defines the upper space together with the partition wall, and a second plate that is disposed above the first plate such that a gap is left between the first and second plates. A case has an opening that is formed to let the gap communicate with an outside of the case. The first plate has a through hole through which the upper space and the gap communicate. The battery module further includes a through path passing through the partition wall and each of the plates to let the lower space communicate with a space above the second plate. The upper space and the gap constitute an exhaust duct, while the lower space and a top space constitute a cooling duct.
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公开(公告)号：US11322793B2
公开(公告)日：2022-05-03
申请号：US16470256
申请日：2017-12-13
Inventor： Keisuke Shimizu , Shinya Motokawa , Daisuke Kishii , Akira Takano
IPC: H01M50/342 , H01M50/213 , H01M50/204 , H01M50/502
Abstract: A battery module includes a plurality of cylindrical batteries that each include a safety valve surrounded by an annular breaking portion configured to break when internal pressure of each of the batteries exceeds a predetermined level. The battery module further includes an exhaust duct to guide gas emitted from the cylindrical battery to outside the module when safety valve is opened, and a gas direction regulator component disposed between the cylindrical batteries and the exhaust duct. The gas direction regulator component has a plurality of openings to expose the respective safety valves. Portions of the gas direction regulator component overhang areas overlapping the respective safety valves so as to cover an end of each safety valve opposite another end of each safety valve adjacent to an exit of the exhaust duct.
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公开(公告)号：US11081764B2
公开(公告)日：2021-08-03
申请号：US16331640
申请日：2017-11-08
Inventor： Shinya Motokawa , Yoshito Kaga , Keisuke Shimizu
IPC: H01M50/581 , H01M50/531
Abstract: A battery module has a plurality of battery cells each including a cell case and a battery element contained in the cell case. The battery module includes a lead to electrically connect a terminal of each of the battery cells to a current collector and a heat shutoff mechanism to break electrical connection between the terminal and the current collector by heat from the cell case when the cell case reaches a predetermined temperature or higher.
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公开(公告)号：US11024920B2
公开(公告)日：2021-06-01
申请号：US16319227
申请日：2017-08-02
Inventor： Keisuke Shimizu
IPC: H01M50/233 , H01M50/204 , H01M50/20 , H01M50/293 , H01M50/291 , H01M50/289 , H01M50/22 , H01M50/218 , H01M2/10 , H01M10/643 , H01M10/653 , H01M50/213 , H01M10/655 , H01M10/658
Abstract: A Battery module includes a plurality of cylindrical batteries and battery a holder holding the cylindrical batteries arranged in at least one row. The battery holder includes a first side wall part, a second side wall part, and a low thermal-conductive member disposed between the side wall parts. The low thermal-conductive member includes a first partition walls interposed between respective the cylindrical batteries and the first side wall part, and the second partition walls interposed between the respective cylindrical batteries and the second side wall part. The first and the second partition walls are alternately arrayed along the row.
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公开(公告)号：US20150155535A1
公开(公告)日：2015-06-04
申请号：US14411891
申请日：2013-07-02
Inventor： Masato Fujikawa , Akihiro Maeda , Tomohiko Yokoyama , Keisuke Shimizu
IPC: H01M2/12
CPC classification number: H01M2/1223 , H01M2/022 , H01M2/0413 , H01M2/1241 , H01M2/30
Abstract: Disclosed is a sealed secondary battery including: a case having an opening, and housing an electrode group including a positive electrode, a negative electrode, and a separator; an insulating plate disposed near the opening and between the opening and the electrode group within the case; and a sealing unit sealing the opening of the case. The sealing unit includes a first conductor plate, a second conductor plate, and a valve mechanism interposed therebetween. The first conductor plate is disposed on the exterior side of the case, and the second conductor plate is disposed on the interior side of the case. The first conductor plate has a first hole having an opening area S1 (mm2), the insulating plate has a second hole having an opening area S2 (mm2), and S1 and S2 satisfy the inequality: (3/t+12) mm2≦S1
Abstract translation: 公开了一种密封二次电池，其包括：具有开口的壳体，并且容纳包括正极，负极和隔膜的电极组; 绝缘板，设置在所述开口附近并且在所述壳体内的所述开口和所述电极组之间; 以及密封壳体的开口的密封单元。 密封单元包括第一导体板，第二导体板和插入其间的阀机构。 第一导体板设置在壳体的外侧，第二导体板设置在壳体的内侧。 第一导体板具有开口面积S1（mm2）的第一孔，绝缘板具有开口面积S2（mm2）的第二孔，S1和S2满足不等式：（3 / t + 12）mm2＆nlE; S1
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Patent Agency Ranking
公开(公告)号：US11967690B2
公开(公告)日：2024-04-23
申请号：US16638953
申请日：2018-12-19
Inventor： Shinya Motokawa , Keisuke Shimizu , Chifumi Murayama
IPC: H01M50/507 , H01M10/647 , H01M50/209 , H01M50/262 , H01M50/271 , H01M50/289 , H01M50/503 , H01M50/509 , H01M50/51 , H01M50/55 , H01M50/553 , H01M50/242
CPC classification number: H01M10/647 , H01M50/209 , H01M50/262 , H01M50/271 , H01M50/289 , H01M50/503 , H01M50/507 , H01M50/509 , H01M50/51 , H01M50/55 , H01M50/553 , H01M50/242
Abstract: A battery pack includes a plurality of bus bars serving to form a plurality of parallel battery structures that each have parallel connection of two or more of a plurality of prismatic batteries. The plurality of bus bars electrically connect the plurality of prismatic batteries to connect the plurality of parallel battery structures in series. The plurality of parallel battery structures connected in series form a battery connection structure that includes a turn causing a reversal of direction of series connection of the plurality of parallel battery structures.
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公开(公告)号：US11811100B2
公开(公告)日：2023-11-07
申请号：US17982069
申请日：2022-11-07
Inventor： Shinya Motokawa , Daisuke Kishii , Keisuke Shimizu , Akira Takano
IPC: H01M50/20 , H01M50/578 , H01M50/30 , H01M50/50 , H01M50/342 , H01M50/213 , H01M50/51 , H01M50/522 , H01M50/593 , H01M50/505 , H01M50/502 , H01M50/572 , H01M50/244 , H01M50/293
CPC classification number: H01M50/578 , H01M50/20 , H01M50/213 , H01M50/30 , H01M50/3425 , H01M50/50 , H01M50/502 , H01M50/505 , H01M50/51 , H01M50/522 , H01M50/572 , H01M50/593 , H01M50/244 , H01M50/293 , H01M2200/20
Abstract: A cell module includes a plurality of battery cells each having a safety valve at a first end in a height direction, a first current collector plate including a main body having a through hole that at least partly overlaps the safety valve when viewed along the height direction and a lead extending into the through hole from the main body and being electrically connected to a first terminal of each of the battery cells, an exhaust duct disposed over a surface of the first current collector plate remote from the battery cells, and an insulating film being made of an insulating material and covering an area of the first current collector plate facing the exhaust duct. The safety valve opens when an internal pressure of any of the battery cells reaches or exceeds a predetermined level.
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8.发明授权公开(公告)号：US11387502B2
公开(公告)日：2022-07-12
申请号：US16638986
申请日：2019-01-22
Inventor： Keisuke Shimizu , Shinya Motokawa , Chifumi Murayama
IPC: H01M10/613 , H01M10/617 , H01M10/651 , H01M10/6555 , H01M50/20 , H01M10/647
Abstract: A battery module includes a first heat transfer component and a first thermal expansion material member that are disposed between the battery cells adjacent to each other. The first thermal expansion material member has a thermal conductivity lower than a thermal conductivity of the first heat transfer component and expands at a first predetermined temperature or higher, in which when temperature of the first thermal expansion material member is less than the first predetermined temperature, the adjacent battery cells are connected to each other via a high thermal conductive route including the first heat transfer component and having a first thermal conductivity, and in which when the temperature of the first thermal expansion material member reaches the first predetermined temperature or higher, the adjacent battery cells are connected to each other via a low thermal conductive route having a second thermal conductivity lower than the first thermal conductivity.
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公开(公告)号：US10938018B2
公开(公告)日：2021-03-02
申请号：US16333717
申请日：2017-11-08
Inventor： Shinya Motokawa , Daisuke Kishii , Keisuke Shimizu , Akira Takano
IPC: H01M10/052 , H01M2/34 , H01M2/12 , H01M2/20 , H01M2/10
Abstract: A cell module includes a plurality of battery cells each having a safety valve at a first end in a height direction, a first current collector plate including a main body having a through hole that at least partly overlaps the safety valve when viewed along the height direction and a lead extending into the through hole from the main body and being electrically connected to a first terminal of each of the battery cells, an exhaust duct disposed over a surface of the first current collector plate remote from the battery cells, and an insulating film being made of an insulating material and covering an area of the first current collector plate facing the exhaust duct. The safety valve opens when an internal pressure of any of the battery cells reaches or exceeds a predetermined level.
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公开(公告)号：US10263229B2
公开(公告)日：2019-04-16
申请号：US15126858
申请日：2015-03-05
Inventor： Shinya Motokawa , Daisuke Kishii , Keisuke Shimizu , Akira Takano
IPC: H01M2/10 , H01M10/625 , H01M10/6551 , H01M10/643 , H01M10/617 , H01M10/627 , H01M10/613 , H01M10/6554 , H01M10/6563
Abstract: Cells are arranged in a predetermined arrangement and are held by holding unit. The holding unit includes a first holding unit, a second holding unit, and a third holding unit. The first holding unit holds cells so as to partially cover the one side of the outer peripheral surfaces of the cells in the longitudinal direction. The second holding unit holds the cells so as to partially cover the other side of the outer peripheral surfaces of the cells in the longitudinal direction. The third holding unit holds the cells so as to cover a region that is covered with neither the first holding unit nor the second holding unit, of the outer peripheral surfaces of the cells in the longitudinal direction.
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