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公开(公告)号：US20190273243A1
公开(公告)日：2019-09-05
申请号：US16333717
申请日：2017-11-08
Inventor： SHINYA MOTOKAWA , DAISUKE KISHII , KEISUKE SHIMIZU , AKIRA TAKANO
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：US20170092909A1
公开(公告)日：2017-03-30
申请号：US15126858
申请日：2015-03-05
Inventor： SHINYA MOTOKAWA , DAISUKE KISHII , KEISUKE SHIMIZU , AKIRA TAKANO
IPC: H01M2/10 , H01M10/643 , H01M10/6551
CPC classification number: H01M2/1077 , H01M2/1094 , H01M10/613 , H01M10/617 , H01M10/625 , H01M10/627 , H01M10/643 , H01M10/6551 , H01M10/6554 , H01M10/6563 , H01M2220/20
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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公开(公告)号：US20250055103A1
公开(公告)日：2025-02-13
申请号：US18722244
申请日：2022-12-15
Inventor： CHIFUMI MURAYAMA , KEISUKE SHIMIZU , HIROTAKA OGINO
IPC: H01M50/213 , H01M50/112 , H01M50/262 , H01M50/271 , H01M50/293 , H01M50/325 , H01M50/477
Abstract: An electricity storage pack includes: at least one electricity storage block that includes a plurality of cells; and a housing that houses the at least one electricity storage block. The at least one electricity storage block and the housing are fixed to one another by a fixing shaft that extends in a first direction and penetrates a first side face of the housing and the at least one electricity storage block.
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公开(公告)号：US20230318120A1
公开(公告)日：2023-10-05
申请号：US18007332
申请日：2021-08-03
Inventor： KEISUKE SHIMIZU , YASUAKI SAKAGAWA
IPC: H01M50/333 , H01M50/383 , H01M50/367
CPC classification number: H01M50/333 , H01M50/383 , H01M50/367
Abstract: A device is adapted for use with a battery pack including a plurality of batteries and a case including an exhaust hole and a sealing member closing the exhaust hole, and is configured to discharge gas from case. The device includes: a pedestal on which the battery pack is to be placed; a gas inlet hole formed in the pedestal at a location overlapping the exhaust hole of the battery pack; a discharge duct being a vent path formed in the pedestal and communicating with the gas inlet hole, for guiding the gas discharged from the battery pack to outside of the device; and a pressing part protruding from the gas inlet hole, the pressing part configured to press the sealing member of the battery pack.
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公开(公告)号：US20200212507A1
公开(公告)日：2020-07-02
申请号：US16639087
申请日：2018-07-11
Inventor： KEISUKE SHIMIZU , TAKESHI NAGAO
IPC: H01M10/42 , H01M2/10 , H01M10/48 , H01M10/04 , H01M10/613 , H01M10/647
Abstract: In an electricity storage system where each of electricity storage modules includes cells that are bound in a state where the cells are stacked in a row. A management device acquires detection values from sensors that are respectively mounted on the electricity storage modules so as to detect expansion or contraction of the cells in a stacking direction. The management device is configured to compare a detection value acquired from the sensor mounted on one electricity storage module to be inspected and detection values acquired from the sensors mounted on other electricity storage modules, and to detect an abnormality in one of the cells included in the one electricity storage module to be inspected.
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Patent Agency Ranking
公开(公告)号：US20160104923A1
公开(公告)日：2016-04-14
申请号：US14895208
申请日：2014-09-26
Inventor： YOSHIHIRO SHIOTSU , HIROSHI TAKASAKI , KEISUKE SHIMIZU
IPC: H01M10/613 , H01M10/0525 , H01M2/12
CPC classification number: H01M10/613 , H01M2/1077 , H01M2/1252 , H01M2/1264 , H01M10/0525
Abstract: A battery unit includes the following elements: a battery module that includes a plurality of battery cells and a gas discharge opening for discharging gas jetted from each of the battery cells; and a gas discharge duct in communication with the gas discharge opening and discharging the gas to the outside of the battery module. The gas discharge duct includes at least one duct outlet of which cross-sectional area of the channel in the duct outlet or the sum of cross-sectional areas of the channel in the respective duct outlets is larger than a cross-sectional area of the channel on the upstream side in the flow direction of the gas. The gas discharge duct also includes a temperature reducing member that is fixed to the periphery of the duct outlet so as to block part of the channel and reduces the temperature of the gas going through gaps.
Abstract translation: 电池单元包括以下元件：包括多个电池单元的电池模块和用于排出从每个电池单元喷射的气体的气体排出口; 以及与气体排出口连通并将气体排出到电池模块的外部的排气管。 气体排放管道包括至少一个管道出口，其中管道出口中的通道的横截面积或相应管道出口中的通道的横截面面积的总和大于通道的横截面面积 在气体的流动方向的上游侧。 气体排出管还包括固定在管道出口周边的温度降低部件，以阻止通道的一部分并降低通过间隙的气体的温度。
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公开(公告)号：US20240283074A1
公开(公告)日：2024-08-22
申请号：US18568873
申请日：2022-06-24
Inventor： KEISUKE SHIMIZU
IPC: H01M50/242 , H01M50/107 , H01M50/186 , H01M50/213 , H01M50/30 , H01M50/588
CPC classification number: H01M50/242 , H01M50/107 , H01M50/186 , H01M50/213 , H01M50/394 , H01M50/588
Abstract: A battery module according to one aspect of the present disclosure includes a battery case and a plurality of laminate batteries stored in the battery case. Each of the plurality of laminate batteries includes an electrode assembly, a container that accommodates the electrode assembly, and a seal portion that seals a periphery of the container. The container includes an exhaust part and a body. The inside of the battery case is filled with a mold resin with a distal end of the exhaust part left exposed.
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公开(公告)号：US20230291065A1
公开(公告)日：2023-09-14
申请号：US18040292
申请日：2021-09-13
Inventor： YASUAKI SAKAGAWA , KEISUKE SHIMIZU
IPC: H01M50/342
CPC classification number: H01M50/3425
Abstract: A battery pack according to an aspect of the present disclosure includes a secondary battery and a battery case that houses the secondary battery. The battery case includes an exhaust section that exhausts gas exhausted from the secondary battery to outside of the battery case. The exhaust section includes at least one slit that is opened along with deformation of the exhaust section occurring in accordance with an increase in pressure in the battery case. In the exhaust section, the slits preferably reversibly operate due to the pressure in the battery case.
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公开(公告)号：US20230275311A1
公开(公告)日：2023-08-31
申请号：US18006572
申请日：2021-07-21
Inventor： KATSUSHI ISHIZAKA , KEISUKE SHIMIZU
IPC: H01M50/367 , H01M50/30 , H01M50/213
CPC classification number: H01M50/367 , H01M50/213 , H01M50/394
Abstract: A battery case includes: a battery container including a battery containing chamber containing a plurality of batteries, and an inner gas discharge hole for discharging a gas generated in the batteries on at least one side in a height direction of the batteries fixed to the battery containing chamber; and one or more gas exhaust passages including first and second corner passage parts that are located inside an outer wall part including an outer surface in contact with an outer region and outside the battery container and extend along the height direction, and an outer gas discharge hole for discharging the gas to the outside, the one or more gas exhaust passages guiding the gas from the inner gas discharge hole to the outer gas discharge hole.
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公开(公告)号：US20190267686A1
公开(公告)日：2019-08-29
申请号：US16320096
申请日：2017-07-06
Inventor： KEISUKE SHIMIZU , AKIRA TAKANO , SHINYA MOTOKAWA , YOSHITO KAGA , TAKESHI ENOMOTO
IPC: H01M10/6554 , H01M10/613 , H01M10/647 , H01M10/6556 , H01M10/6568
Abstract: A battery module includes a battery assembly and a thermally-conductive member to hold or support battery assembly. The battery assembly has a plurality of first batteries and a plurality of second batteries that are alternately stacked. The thermally-conductive member includes a first component and a second component that are each disposed along a stacking direction of the batteries. The first component has a heat resistance to the second batteries higher than to the first batteries. The second component has a heat resistance to the first batteries higher than to the second batteries.
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