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公开(公告)号：US11515607B2
公开(公告)日：2022-11-29
申请号：US16964051
申请日：2018-11-15
发明人： Naotake Yoshida , Kazuhiro Harazuka , Nobuo Iwatsuki , Shinji Ota
IPC分类号： H01M50/578 , H01M50/502 , H01M50/20
摘要： There is provided a battery system including parallel-connected bus bars each connecting the plurality of prismatic battery cells in parallel, and a safety mechanism configured to be capable of interrupting a current path of prismatic battery cells connected in parallel by the parallel-connected bus bars, where the sealing plate of one of the prismatic battery cells convexly deforms due to a rise in an internal pressure of this prismatic battery cell when an abnormality occurs, the sealing plate that has convexly deformed comes into contact with the parallel-connected bus bars to form external short circuitry between the electrode terminals that are positive and negative of one prismatic battery cell connected in parallel to the prismatic battery cell with the abnormality, and external short circuitry activates the safety mechanism that interrupts a current flowing into the prismatic battery cell with the abnormality.
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公开(公告)号：US12040467B2
公开(公告)日：2024-07-16
申请号：US17266682
申请日：2019-07-26
发明人： Nao Takeda , Naotake Yoshida , Kazuhiro Harazuka
IPC分类号： H01M10/613 , H01M10/647 , H01M10/6555 , H01M10/658 , H01M50/204 , H01M50/209 , H01M50/227 , H01M50/293
CPC分类号： H01M10/6555 , H01M10/613 , H01M10/647 , H01M10/658 , H01M50/204 , H01M50/209 , H01M50/227 , H01M50/293
摘要： The power supply device includes a plurality of battery cells each having a square outer shape, a plurality of separators for insulating the adjacent battery cells, and a restraining member that assembles the plurality of battery cells and the plurality of separators. Each of separators has heat insulating properties. Further, each of separators is disposed between the plurality of battery cells. Further, each of separators includes contact portion that comes into contact with adjacent battery cell, and thin portion formed thinner than contact portion.
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公开(公告)号：US20210050582A1
公开(公告)日：2021-02-18
申请号：US16964051
申请日：2018-11-15
发明人： Naotake Yoshida , Kazuhiro Harazuka , Nobuo Iwatsuki , Shinji Ota
摘要： There is provided a battery system including parallel-connected bus bars each connecting the plurality of prismatic battery cells in parallel, and a safety mechanism configured to be capable of interrupting a current path of prismatic battery cells connected in parallel by the parallel-connected bus bars, where the sealing plate of one of the prismatic battery cells convexly deforms due to a rise in an internal pressure of this prismatic battery cell when an abnormality occurs, the sealing plate that has convexly deformed comes into contact with the parallel-connected bus bars to form external short circuitry between the electrode terminals that are positive and negative of one prismatic battery cell connected in parallel to the prismatic battery cell with the abnormality, and external short circuitry activates the safety mechanism that interrupts a current flowing into the prismatic battery cell with the abnormality.
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公开(公告)号：US11916209B2
公开(公告)日：2024-02-27
申请号：US17267326
申请日：2019-07-26
发明人： Nao Takeda , Naotake Yoshida , Kazuhiro Harazuka
IPC分类号： H01M10/6555 , H01M10/613 , H01M10/647 , H01M10/658 , H01M50/209 , H01M50/227 , H01M50/289 , H01M50/291 , H01M50/264 , H01M10/6557
CPC分类号： H01M10/6555 , H01M10/613 , H01M10/647 , H01M10/658 , H01M10/6557 , H01M50/209 , H01M50/227 , H01M50/264 , H01M50/289 , H01M50/291
摘要： The power supply device includes a plurality of battery cells each having a rectangular outer shape, a plurality of separators configured to insulate adjacent battery cells, and a restraining member assembling the plurality of battery cells and the plurality of separators. Each of separators includes interposed plate disposed between adjacent battery cells, heat insulating member having a sheet-like shape and disposed between interposed plate and adjacent battery cells, peripheral wall protruding from interposed plate toward adjacent battery cells and defining a housing space housing adjacent battery cells, and a plurality of ribs provided inside peripheral wall. The plurality of ribs holds heat insulating member.
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公开(公告)号：US11450923B2
公开(公告)日：2022-09-20
申请号：US16962090
申请日：2018-11-15
发明人： Naotake Yoshida , Kazuhiro Harazuka , Nobuo Iwatsuki , Shinji Ota
IPC分类号： H01M50/502 , H01M50/572 , H01M50/446 , H01M50/20
摘要： A short circuit current interruption method of a battery system including: stacking a plurality of prismatic battery cells and connecting the plurality of prismatic battery cells with a parallel connection bus bar in parallel to form a battery block, wherein a sealing plate of the prismatic battery cell is a plate material having flexibility that deforms when an internal pressure rises due to an internal short circuit, and when a rise in the internal pressure due to the internal short circuit of the prismatic battery cell causes deformation, the deformation of the sealing plate is detected, and when an amount of deformation exceeds a setting value, the short circuit current of the battery connected in parallel with the internally short circuited battery is interrupted.
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公开(公告)号：US20200343508A1
公开(公告)日：2020-10-29
申请号：US16962090
申请日：2018-11-15
发明人： Naotake Yoshida , Kazuhiro Harazuka , Nobuo Iwatsuki , Shinji Ota
摘要： A short circuit current interruption method of a battery system including: stacking a plurality of prismatic battery cells and connecting the plurality of prismatic battery cells with a parallel connection bus bar in parallel to form a battery block, wherein a sealing plate of the prismatic battery cell is a plate material having flexibility that deforms when an internal pressure rises due to an internal short circuit, and when a rise in the internal pressure due to the internal short circuit of the prismatic battery cell causes deformation, the deformation of the sealing plate is detected, and when an amount of deformation exceeds a setting value, the short circuit current of the battery connected in parallel with the internally short circuited battery is interrupted.
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