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公开(公告)号：US20240204343A1
公开(公告)日：2024-06-20
申请号：US18595453
申请日：2024-03-05
发明人： Piaopiao Yang , Yao Li , Ou Qian , Xiaobo Chen
IPC分类号： H01M50/367 , H01M10/6557 , H01M50/204 , H01M50/342
CPC分类号： H01M50/367 , H01M10/6557 , H01M50/3425 , H01M50/204
摘要： A battery and an electrical device are provided. The battery comprises: a battery cell, a first wall of the battery cell being provided with a first pressure relief mechanism; a thermal management component for regulating the temperature of the battery cell, wherein the thermal management component is attached to a second wall of the battery cell, the second wall being different from the first wall and the area of the second wall being greater than or equal to that of the first wall; and a discharge pathway configured to be capable of getting in communication with the interior of the battery cell via the first pressure relief mechanism when the first pressure relief mechanism is actuated, so that emissions of the battery cell are discharged to the discharge pathway. The battery and the electrical device of embodiments of the present application can improve the safety of the battery.
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2.发明公开公开(公告)号：US20230344071A1
公开(公告)日：2023-10-26
申请号：US18344835
申请日：2023-06-29
发明人： Piaopiao Yang , Xiaobo Chen , Yao Li , Mingguang Gu , Ou Qian , Qiu Jin
IPC分类号： H01M50/367 , H01M50/103 , H01M50/15 , H01M50/342 , H01M50/59 , H01M50/586 , H01M50/474 , H01M50/477
CPC分类号： H01M50/367 , H01M50/103 , H01M50/15 , H01M50/3425 , H01M50/59 , H01M50/586 , H01M50/474 , H01M50/477 , H01M2200/20 , H01M2220/20
摘要： Provided are a battery cell, a method and system for manufacturing the battery cell, a battery, and a power consuming device. The battery cell according to this embodiment includes an electrode assembly, a housing, a pressure relief mechanism, and a cap assembly. The housing is provided with an accommodating space for accommodating the electrode assembly, and includes a first side plate on a side in a first direction; the pressure relief mechanism is arranged on the first side plate; and the cap assembly is configured to seal the housing; wherein an inner surface of the first side plate of the housing is provided with a first passageway extending along the inner surface, and the first passageway is configured to direct a gas in the accommodating space to the pressure relief mechanism, such that the pressure relief mechanism is actuated and relieves a pressure when the pressure reaches a threshold.
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3.发明公开公开(公告)号：US20230216136A1
公开(公告)日：2023-07-06
申请号：US18174662
申请日：2023-02-27
发明人： Piaopiao Yang , Xiaobo Chen , Yao Li , Qiu Jin , Ou Qian
IPC分类号： H01M50/342 , H01M50/209 , H01M10/6556
CPC分类号： H01M50/3425 , H01M50/209 , H01M10/6556
摘要： A box body of a battery, a battery, a power consumption device, and a method and device for producing a battery are provided. The box body of the battery includes: an electrical chamber, configured to accommodate a plurality of battery cells, a first wall of a battery cell being provided with a pressure relief mechanism; a collecting chamber, configured to collect emissions from the battery cell when the pressure relief mechanism is actuated; an isolating component, configured to isolate the electrical chamber from the collecting chamber, the isolating component being provided with a pressure relief region corresponding to the pressure relief mechanism, and the pressure relief region being configured to discharge the emissions from the electrical chamber when the pressure relief mechanism is actuated.
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公开(公告)号：US20220140432A1
公开(公告)日：2022-05-05
申请号：US17578343
申请日：2022-01-18
发明人： Xiaobo Chen , Xianda Li , Shaoji Wu , Ting Li
IPC分类号： H01M50/342 , H01M50/209 , H01M50/383 , H01M10/613
摘要： Embodiments of this application provide an explosion-proof valve, a battery pack, and an apparatus. The explosion-proof valve includes a flame arresting member and an air permeable membrane. The flame arresting member is configured to connect to a housing of a battery pack, the air permeable membrane is fastened to the flame arresting member, and the battery pack is capable of exchanging gas with the outside through the flame arresting member and the air permeable membrane in sequence. During use of the explosion-proof valve of this application in the battery pack of this application, when thermal runaway occurs inside the housing of the battery pack, pressure inside the housing is suddenly increased, and as a result, the battery pack releases the pressure through the explosion-proof valve, and high-temperature runaway gas impacts and melts the air permeable membrane, forming a smooth air flow channel.
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公开(公告)号：US09929396B2
公开(公告)日：2018-03-27
申请号：US14842742
申请日：2015-09-01
发明人： Quankun Li , Kai Wu , Pinghua Deng , Xiaobo Chen
CPC分类号： H01M2/345 , H01M2/043 , H01M2/305 , H01M2200/20 , H01M2220/10 , H01M2220/20
摘要： A power battery cap structure and a power battery are provided in the present invention. The power battery cap structure includes a first terminal, a second terminal and a cap assembly; both the first terminal and the second terminal are provided on the cap assembly, and the second terminal is electrically insulated from the cap assembly. The power battery cap structure further includes a resistance attached to the first terminal and electrically connected the first terminal with the cap assembly. The cap assembly includes a cap sheet, a first short circuit part and a second short circuit part; the first short circuit part and the second short circuit part are attached to the cap sheet and configured to act upwards when pressure inside the power battery increases so that the first terminal and the second terminal are electrically connected to form a protection loop; and the first short circuit part and the resistance are connected in parallel when the protection loop is formed. With the technical solution of the present invention, a separate protection loop can be formed in a power battery respectively in the cases of overcharge and nailing abuses, thereby efficiently protecting the power battery.
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公开(公告)号：US20240363959A1
公开(公告)日：2024-10-31
申请号：US18764186
申请日：2024-07-04
发明人： Xiaobo Chen , Mingguang Gu
IPC分类号： H01M50/342 , C22C21/00 , H01M50/103 , H01M50/119
CPC分类号： H01M50/3425 , C22C21/00 , H01M50/103 , H01M50/119
摘要： This application provides a shell component, a battery cell, a battery, and an electrical device, and relates to the technical field of batteries. The shell component includes a non-fragile region and a fragile region formed in one piece. A groove portion is disposed on the shell component. The non-fragile region is formed around the groove portion. The fragile region is formed at a bottom of the groove portion. The fragile region is configured to be broken when the battery cell is relieved of an internal pressure. A hardness of the fragile region is H1, and a hardness of the non-fragile region is H2, satisfying: H1>H2. The hardness of the fragile region is greater than the hardness of the non-fragile region.
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公开(公告)号：US12113247B2
公开(公告)日：2024-10-08
申请号：US18604186
申请日：2024-03-13
发明人： Xiaobo Chen , Mingguang Gu
IPC分类号： H01M50/578 , H01M50/581
CPC分类号： H01M50/578 , H01M50/581 , H01M2220/20
摘要： A shell for a battery cell includes a pressure relief mechanism that includes: a body; a first weakened portion arranged on the body, the first weakened portion having two first free ends, and a line connecting the two first free ends not completely overlapping with the first weakened portion and jointly defining a pressure relief portion; and a second weakened portion arranged on the body, a first projection of the first weakened portion on a plane perpendicular to a first direction not intersecting a second projection of the second weakened portion on the plane, the first direction being a thickness direction of the pressure relief portion. The pressure relief portion is configured to be opened with the first weakened portion as a boundary and flip toward one side where the second weakened portion is located when an internal pressure or temperature of the battery cell reaches a threshold.
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公开(公告)号：US20240274926A1
公开(公告)日：2024-08-15
申请号：US18634859
申请日：2024-04-12
发明人： Xiaobo Chen , Jingfeng Bai , Mingguang Gu
IPC分类号： H01M50/133 , H01M50/107 , H01M50/143 , H01M50/152 , H01M50/213 , H01M50/249
CPC分类号： H01M50/133 , H01M50/107 , H01M50/152 , H01M50/213 , H01M50/143 , H01M50/249 , H01M2200/10 , H01M2200/20
摘要： A shell, a battery cell, a battery, and an electrical device are provided. The shell includes a circumferential wall and a groove group. The circumferential wall is configured for enclosing an electrode assembly. The groove group includes a plurality of first grooves disposed on the circumferential wall in a circumferential direction of the circumferential wall, and the circumferential wall is configured to crack along the first grooves when pressure or temperature inside the shell reaches a threshold to relieve the pressure inside the shell. The groove group further includes a plurality of second grooves disposed on the circumferential wall in the circumferential direction, the second grooves are alternated with the first grooves in the circumferential direction, and a residual thickness of the circumferential wall at the second groove is greater than that of the circumferential wall at the first groove.
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公开(公告)号：US11909068B2
公开(公告)日：2024-02-20
申请号：US18353706
申请日：2023-07-17
发明人： Ou Qian , Piaopiao Yang , Yufeng Zhang , Xiaobo Chen
IPC分类号： H01M50/392 , H01M50/367 , H01M50/107 , H01M50/213
CPC分类号： H01M50/392 , H01M50/107 , H01M50/213 , H01M50/367 , H01M2220/20
摘要： A battery includes a cylindrical battery cell having a cylindrical side surface provided with a pressure relief mechanism, an electrical chamber configured to accommodate the battery cell, a collection chamber configured to collect emissions from the battery cell when the pressure relief mechanism is actuated, and an isolation component configured to isolate the electrical chamber from the collection chamber. The isolation component includes a first region and a second region. The first region is used for accommodating a first portion of the battery cell such that the first portion protrudes, towards the collection chamber, from a surface of the second region facing towards the collection chamber, and the pressure relief mechanism is disposed in a region of the cylindrical side surface located in the first portion such that the emissions are allowed to enter the collection chamber when the pressure relief mechanism is actuated.
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10.发明授权公开(公告)号：US11881601B2
公开(公告)日：2024-01-23
申请号：US17549142
申请日：2021-12-13
发明人： Xianda Li , Xiaobo Chen , Lu Hu , Piaopiao Yang , Jinru Yue , Mingguang Gu
IPC分类号： H01M50/618 , H01M50/375 , H01M50/691 , H01M10/6556 , H01M10/6567
CPC分类号： H01M50/618 , H01M50/375 , H01M50/691 , H01M2220/20
摘要： Embodiments of the present application provide a box of a battery. The box includes: an electrical chamber configured to accommodate a plurality of battery cells, a battery cell including a pressure relief mechanism, and the pressure relief mechanism being configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; a thermal management component configured to accommodate a fluid to adjust the temperature of the battery cell; and a collection chamber configured to collect emissions discharged from the battery cell when the pressure relief mechanism is actuated, where the electrical chamber and the collection chamber are disposed on both sides of the thermal management component, a wall of the collection chamber is provided with a first pressure relief zone, and the first pressure relief zone is configured to relieve the emissions in the collection chamber.
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