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公开(公告)号:US20240283051A1
公开(公告)日:2024-08-22
申请号:US18654294
申请日:2024-05-03
发明人: Go Yamashiro , Shingo Ochi
IPC分类号: H01M10/6555 , H01M10/613 , H01M10/647 , H01M10/653 , H01M50/204 , H01M50/209 , H01M50/289
CPC分类号: H01M10/6555 , H01M10/613 , H01M10/647 , H01M10/653 , H01M50/204 , H01M50/209 , H01M50/289
摘要: The battery module includes a plurality of batteries stacked together, and separator disposed between an adjoining two of the plurality of batteries and configured to insulate between the adjoining two of batteries. Separator includes thermal conduction suppressor and position regulator. Thermal conduction suppressor has lower thermal conductivity than position regulator and suppresses thermal conduction between the adjoining two of batteries. Position regulator has higher rigidity than thermal conduction suppressor, has dimension in stacked direction of batteries equal to or greater than dimension of thermal conduction suppressor in stacked direction, and abuts the adjoining two of batteries to regulate a position of each of the adjoining two of batteries in stacked direction.
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公开(公告)号:US11962026B2
公开(公告)日:2024-04-16
申请号:US17263944
申请日:2019-07-26
发明人: Go Yamashiro
IPC分类号: H01M50/242 , B60L50/64 , H01M50/183 , H01M50/209 , H01M50/249 , H01M50/264 , H01M50/289 , H01M50/291
CPC分类号: H01M50/242 , B60L50/64 , H01M50/183 , H01M50/209 , H01M50/249 , H01M50/264 , H01M50/289 , H01M50/291
摘要: Power supply device includes: a plurality of secondary battery cells each constituted by closing an open end of quadrangular exterior can opened at one end, with sealing plate; insulating separator interposed between adjacent secondary battery cells; one pair of end plates covering both end faces of battery stack constituted by stacking the plurality of secondary battery cells; and a plurality of fastening members fastening end plates together. Power supply device is configured such that within a region where separator is in contact with secondary battery cell, separator is made less easily deformable in a region on the side of sealing plate than other regions. As a result, a portion of separator in contact with the side of sealing plate is made not to easily deform, and therefore, when secondary battery cell expands, a joint portion between sealing plate and exterior can is protected, and meanwhile, exterior can is allowed to deform at other portions, and thereby, the deformation during expansion can be mitigated.
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公开(公告)号:US11929479B2
公开(公告)日:2024-03-12
申请号:US17262256
申请日:2019-07-26
发明人: Go Yamashiro , Hiroyuki Takahashi
IPC分类号: B60K1/04 , H01M10/613 , H01M10/647 , H01M10/653 , H01M10/6554 , H01M50/209 , H01M50/249 , H01M50/264 , H01M50/291 , H01M50/293
CPC分类号: H01M10/653 , B60K1/04 , H01M10/613 , H01M10/647 , H01M10/6554 , H01M50/209 , H01M50/249 , H01M50/264 , H01M50/291 , H01M50/293
摘要: Power supply device includes a plurality of secondary battery cells, a pair of end plates that cover both end faces of battery stack in which the plurality of secondary battery cells are stacked, a plurality of fastening members that fasten end plates to each other, a plurality of pressing parts that press upper surfaces of the plurality of secondary battery cells respectively, and buffer interposed between pressing parts and the upper surfaces of secondary battery cells. Buffer includes a plurality of covers made of resin, and a connecting part, having flexibility, for connecting two of the plurality of covers. Buffer is configured such that each of the plurality of covers is disposed on the upper surface of corresponding one of secondary battery cells, and each of pressing part abuts on the upper surface of the corresponding cover.
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公开(公告)号:US12132219B2
公开(公告)日:2024-10-29
申请号:US17439856
申请日:2019-12-20
发明人: Go Yamashiro
IPC分类号: H01M50/264 , B60K1/04 , B60L53/60 , H01M10/44 , H01M50/209 , H01M50/224 , H01M50/249 , H01M50/262
CPC分类号: H01M50/264 , B60K1/04 , B60L53/60 , H01M10/44 , H01M50/209 , H01M50/224 , H01M50/249 , H01M50/262 , H01M2220/20
摘要: A power supply device includes a battery stack body in which a plurality of secondary battery cells are stacked, a pair of end plates covering both end surfaces of the battery stack body, and a plurality of fastening members disposed on the side surface of the battery stack body and fasten the end plates to each other. Fastening member includes plate-shaped bar extended in a stack direction of the secondary battery cells, and locking blocks fixed to both ends of plate-shaped bar. Locking block is formed to be thicker than plate-shaped bar, is joined to an end surface of plate-shaped bar, and protrudes toward an outer peripheral surface of the end plate. The end plate is provided with a stopper portion abutting on locking block on a part close to the battery stack body of a fitting portion to which locking block is guided, and locking block is locked to the stopper portion to fasten the end plate with fastening member.
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公开(公告)号:US12049150B2
公开(公告)日:2024-07-30
申请号:US17441237
申请日:2019-12-20
发明人: Go Yamashiro
IPC分类号: B60L50/64 , B60K1/04 , B60L53/60 , H01M10/04 , H01M10/0525 , H01M10/42 , H01M50/209 , H01M50/224 , H01M50/249 , H01M50/262 , H01M50/264 , H01M50/289 , H02J7/02 , H02J7/35
CPC分类号: B60L53/60 , B60K1/04 , B60L50/64 , H01M10/0481 , H01M10/0525 , H01M10/4207 , H01M10/425 , H01M50/209 , H01M50/224 , H01M50/249 , H01M50/262 , H01M50/264 , H01M50/289 , H02J7/02 , H02J7/35 , H01M2010/4271 , H01M2220/20
摘要: Power supply device includes: a plurality of secondary battery cells each having a prismatic exterior can and constant cell thickness; a pair of end plates covering both end surfaces of battery stack body in which the plurality of secondary battery cells are stacked; and a plurality of fastening members each having a plate shape extending in a stack direction of the plurality of secondary battery cells and disposed on an opposing side surface of battery stack body to fasten end plates to each other. Each of the plurality of fastening members has wavy portion in which a plurality of wavy pieces bent in a cross-sectional view are periodically disposed at an interval according to the cell thickness.
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公开(公告)号:US12009496B2
公开(公告)日:2024-06-11
申请号:US17267461
申请日:2019-07-26
发明人: Go Yamashiro , Shingo Ochi
IPC分类号: H01M50/204 , H01M10/613 , H01M10/647 , H01M10/653 , H01M10/6555 , H01M50/209 , H01M50/289
CPC分类号: H01M10/6555 , H01M10/613 , H01M10/647 , H01M10/653 , H01M50/204 , H01M50/209 , H01M50/289
摘要: The battery module includes a plurality of batteries stacked together, and separator disposed between an adjoining two of the plurality of batteries and configured to insulate between the adjoining two of batteries. Separator includes thermal conduction suppressor and position regulator. Thermal conduction suppressor has lower thermal conductivity than position regulator and suppresses thermal conduction between the adjoining two of batteries. Position regulator has higher rigidity than thermal conduction suppressor, has dimension in stacked direction of batteries equal to or greater than dimension of thermal conduction suppressor in stacked direction, and abuts the adjoining two of batteries to regulate a position of each of the adjoining two of batteries in stacked direction.
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公开(公告)号:US20200243830A1
公开(公告)日:2020-07-30
申请号:US16486372
申请日:2018-03-15
发明人: Tomomi Tanaka , Go Yamashiro , Takashi Yoshida , Kazuaki Endo
摘要: A battery system includes a battery stack formed by stacking a plurality of battery cells, a bus bar coupling electrode terminals of the battery cells, a lead wire electrically coupled to the bus bar, and a voltage detection circuit configured to detect a voltage of each of the battery cells via the lead wire. The bus bar includes a bus bar main body including terminal coupling parts respectively coupled with the electrode terminals, and a lead wire fixing part fixed with the lead wire. The bus bar further includes, on a first surface, a coupling region electrically coupled with the lead wire, and, away from a coupling region, on the lead wire fixing part, a lock connection part locking and connecting the lead wire. The lock connection part includes a through part passing through the lead wire fixing part.
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