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公开(公告)号：US20190207184A1
公开(公告)日：2019-07-04
申请号：US16312012
申请日：2017-05-09
CPC分类号： H01M2/1241 , H01M2/02 , H01M2/10 , H01M2/1077 , H01M2/12 , H01M2/20 , H01M2/26 , H01M2200/20 , H01M2220/20
摘要： A battery block is provided with: a plurality of cylindrical batteries of each of which the two ends are formed as positive and negative electrodes; and a lead plate which is connected to the electrodes of the cylindrical batteries. The cylindrical batteries are provided with battery cans having bottom plates provided with bottom surface electrodes and exhaust valves. The exhaust valves which are provided in the bottom plates open as a result of thin-walled lines breaking at a threshold pressure. The exhaust valves are provided inside the loop-shaped thin-walled lines provided in the bottom plates, said thin-walled lines having unconnected portions. The unconnected portions form hinge parts. Furthermore, the bottom surface electrodes provided in the bottom plates connect the lead plate to the hinge parts. The lead plate has cut-out portions provided in positions facing areas including the thin-walled lines.
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2.发明授权公开(公告)号：US11677124B2
公开(公告)日：2023-06-13
申请号：US17255971
申请日：2019-05-17
发明人： Takuya Egashira , Naotake Yoshida , Daisuke Yamane
IPC分类号： H01M50/578 , H01M50/249 , H01M50/209 , H01M50/183 , H01M50/317 , H01M50/147 , H01M50/512 , H01M10/46 , H01M50/50 , H01M50/588 , B60L50/64 , H01M50/593
CPC分类号： H01M50/578 , B60L50/64 , H01M10/46 , H01M50/147 , H01M50/183 , H01M50/209 , H01M50/249 , H01M50/317 , H01M50/50 , H01M50/512 , H01M50/588 , H01M50/593 , H01M2200/20
摘要： A battery system includes a battery block having a plurality of square battery cells (1) stacked in one direction, parallel connection bus bars (5X), insulating plate (7), and lid plate (8) fixed to insulating plate (7). Each square battery cell (1) has a discharge port provided with discharge valve (14) and a sealing plate provided with positive and negative electrode terminals via an insulating material. Parallel connection bus bars (5X) are connected to the electrode terminals to connect some or all of square battery cells (1) in parallel. Insulating plate (7) is disposed on the surfaces of sealing plates of the plurality of square battery cells (1) and includes passing portions having openings provided at positions corresponding to the discharge ports to pass the exhaust gas ejected from the discharge ports and pressing portions (22) disposed between parallel-connection bus bars (5X) and the sealing plates. Lid plate (8) faces discharge ports facing the openings of the passing portions.
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公开(公告)号：US12036878B2
公开(公告)日：2024-07-16
申请号：US17267309
申请日：2019-07-26
发明人： Yasuaki Uemura , Shingo Ochi , Takuya Egashira , Masato Koutari
IPC分类号： B60K1/04 , B60L50/64 , H01M10/0525 , H01M10/46 , H01M50/209 , H01M50/224 , H01M50/249 , H01M50/264 , H02J7/00 , B60K6/28 , H02J7/35 , H02P27/06
CPC分类号： B60L50/64 , H01M10/0525 , H01M10/46 , H01M50/209 , H01M50/224 , H01M50/249 , H01M50/264 , H02J7/0013 , B60K6/28 , B60Y2200/91 , B60Y2200/92 , B60Y2400/112 , H01M2220/20 , H02J7/35 , H02P27/06
摘要： Power supply device includes: a pair of end plates disposed on both ends in a stacking direction of battery stack constituted by stacking a plurality of secondary battery cells; and a plurality of fastening members fastening the pair of end plates together. Each of fastening members includes fastening main face having a flat plate shape and locking block fixed to a corner of fastening main face Each of end plates is formed with step that locks locking block while being fastened by fastening members, and has end plate screw hole opened near step. Each of fastening members has fastening side through hole opened so as to align with end plate screw hole while having each of end plates fastened, and has a fixing region fixing locking block to fastening main face disposed in a direction further away from each of end plates than fastening side through hole.
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公开(公告)号：US11936061B2
公开(公告)日：2024-03-19
申请号：US17251237
申请日：2019-05-17
发明人： Takuya Egashira , Naotake Yoshida
IPC分类号： H01M50/358 , H01M50/209 , H01M50/249 , H01M50/262 , H01M50/271 , H01M50/50 , H01M50/505 , B60L50/64
CPC分类号： H01M50/358 , H01M50/209 , H01M50/249 , H01M50/262 , H01M50/271 , H01M50/50 , H01M50/505 , B60L50/64
摘要： Provided is power supply device configured for safe discharge to the outside of the power supply device even when gas at high temperature and under high pressure is discharged from a secondary battery cell, power supply device including: a plurality of secondary battery cells each having gas discharge valve for discharging internal gas; and cover part disposed on one surface of battery stack with the plurality of secondary battery cells stacked while covering gas discharge valve of each of the plurality of secondary battery cells. Cover part is provided inside with a gas guide path partitioned to discharge gas discharged from gas discharge valve to the outside of cover part, and the gas guide path includes one or more horizontal gas flow bending portions that bend at least a flow direction of some of the gas in plan view of cover part.
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公开(公告)号：US12068499B2
公开(公告)日：2024-08-20
申请号：US17436626
申请日：2019-12-26
发明人： Naotake Yoshida , Takuya Egashira , Yusuke Fujii , Nao Takeda , Takuya Unehara
IPC分类号： H01M50/367 , H01M10/613 , H01M10/653 , H01M50/209 , H01M50/271 , H01M50/264 , H01M50/293
CPC分类号： H01M50/367 , H01M10/613 , H01M10/653 , H01M50/209 , H01M50/271 , H01M50/264 , H01M50/293 , H01M2220/20
摘要： Battery module includes: battery stack including a plurality of batteries that are stacked, each of the plurality of batteries having valve portion; duct plate configured to cover a first surface of battery stack on which a plurality of valve portions are disposed, duct plate having gas discharge duct that temporarily stores a gas blown off from valve portions of respective batteries; cover plate placed on duct plate; flow path portion defined by duct plate and cover plate, flow path portion being connected to gas discharge duct through opening, flow path portion extending in a first direction that intersects with stacking direction of the batteries, flow path portion allowing leaking of the gas in gas discharge duct to an outside of battery module; and gas restricting wall portion disposed in gas discharge duct between valve portion and opening.
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公开(公告)号：US20200313129A1
公开(公告)日：2020-10-01
申请号：US16311027
申请日：2017-05-09
IPC分类号： H01M2/10 , H01M10/643 , H01M2/12
摘要： A battery block is provided with: a plurality of cylindrical batteries of each of which the two ends are formed as positive and negative electrodes; and a lead plate which is connected to the electrodes of the cylindrical batteries. The cylindrical batteries are provided with battery cans having exhaust valves provided to bottom plates. Bottom surface electrodes for connecting the lead plate are provided to the bottom plates of the battery cans. Furthermore, ring-shaped thin-walled lines which break at a threshold pressure are provided in the bottom plates. The insides of the thin-walled lines form sets of the exhaust valves. The lead plate connected to the bottom surface electrodes has, provided in positions facing the exhaust valves, through holes having an internal shape through which the exhaust valves which have separated from the bottom plates can pass.
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7.发明授权公开(公告)号：US12095063B2
公开(公告)日：2024-09-17
申请号：US17256180
申请日：2019-07-08
发明人： Naotake Yoshida , Tomoaki Ito , Takuya Egashira
IPC分类号： H01M10/625 , B60L50/64 , H01M10/44 , H01M10/613 , H01M10/647 , H01M10/6554 , H01M10/6568 , H01M10/658 , H01M50/209 , H01M50/24 , H01M50/249 , B60K1/00 , B60K1/04 , B60K6/28 , B60L58/26 , H02J7/00
CPC分类号： H01M10/6554 , B60L50/64 , H01M10/441 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6568 , H01M10/658 , H01M50/209 , H01M50/24 , H01M50/249 , B60K2001/005 , B60K1/04 , B60K6/28 , B60L58/26 , B60Y2200/91 , B60Y2200/92 , B60Y2306/05 , B60Y2400/112 , H01M2220/20 , H02J7/007
摘要： A battery system incudes battery stack formed by stacking a plurality of battery cells and cooling plate thermally coupled to battery cell of battery stack. Heat insulating material is disposed between battery cells of battery stack, which are adjacent to each other, and heat insulating material insulates heat between battery cells adjacent to each other. In addition, cooling plate cools battery cell, is used in combination with an endothermic material having heat capacity to absorb thermal runaway energy of battery cell, and prevents induction of thermal runaway.
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公开(公告)号：US12087964B2
公开(公告)日：2024-09-10
申请号：US17439115
申请日：2019-12-26
发明人： Takuya Egashira , Yusuke Fujii , Nao Takeda
IPC分类号： H01M50/367 , H01M50/209 , H01M50/224 , H01M50/262 , H01M50/271
CPC分类号： H01M50/367 , H01M50/209 , H01M50/224 , H01M50/262 , H01M50/271 , H01M2220/20
摘要： The battery module includes: battery stack including a plurality of batteries that are stacked, each of the plurality of batteries having valve portion; duct plate configured to cover a surface of battery stack on which the plurality of valve portions are disposed, duct plate having gas discharge duct that is connected to valve portions of respective batteries, and temporarily stores a blown-off gas; cover plate placed on duct plate; and flow path portion defined by duct plate and cover plate, flow path portion extending from gas discharge duct and allowing leaking of a gas in gas discharge duct to an outside of battery module. Cover plate is disposed in a state where a predetermined gap is formed between cover plate and first wall portion of gas discharge duct that faces valve portions, and opening that allows an inside of gas discharge duct and the gap to communicate with each other is formed in first wall portion of gas discharge duct.
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公开(公告)号：US12087963B2
公开(公告)日：2024-09-10
申请号：US17436679
申请日：2019-12-26
发明人： Naotake Yoshida , Takuya Egashira , Yusuke Fujii , Nao Takeda , Takuya Unehara
IPC分类号： H01M50/367 , H01M50/209 , H01M50/271 , H01M50/264 , H01M50/293
CPC分类号： H01M50/367 , H01M50/209 , H01M50/271 , H01M50/264 , H01M50/293
摘要： The battery module includes: battery stack including a plurality of batteries that are stacked, each of the plurality of batteries having valve portion; duct plate configured to cover a surface of battery stack on which the plurality of valve portions are disposed, duct plate having gas discharge duct that is connected to valve portions of the respective batteries, and temporarily stores a blown-off gas; cover plate placed on duct plate; and flow path portion defined by duct plate and cover plate, flow path portion extending from gas discharge duct in a first direction that intersects with stacking direction and allowing leaking of the gas in gas discharge duct to an outside of battery module. Cover plate has opening through which a midst portion of flow path portion is communicable with the outside of the battery module.
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公开(公告)号：US11489213B2
公开(公告)日：2022-11-01
申请号：US17256137
申请日：2019-05-17
IPC分类号： H01M10/34 , H01M10/44 , H01M10/625 , H01M50/317 , H01M10/42 , H01M10/48 , H01M10/52
摘要： The power supply device including: a plurality of secondary battery cells each including a gas discharge valve for discharging internal gas; a plurality of voltage detection lines for detecting voltage of the corresponding plurality of secondary battery cells; a plurality of current fuses provided in the respective plurality of voltage detection lines to shut off current flow when currents flowing through the respective voltage detection lines exceed a predetermined value; and gas guide path communicating with the gas discharge valve to discharge gas discharged from the gas discharge valve to the outside. At least one of the plurality of current fuses is disposed in gas guide path, and is composed of thermal fuse that shuts off current flow depending on temperature of the gas discharged from the gas discharge valve.
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