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公开(公告)号：US11757123B2
公开(公告)日：2023-09-12
申请号：US15894789
申请日：2018-02-12
发明人： Quankun Li , Peng Wang , Taosheng Zhu
IPC分类号： H01M2/00 , H01M10/04 , H01M50/15 , H01M50/147 , H01M50/545 , H01M50/342 , H01M50/193 , H01M50/176 , H01M50/55 , H01M50/184
CPC分类号： H01M10/0413 , H01M50/147 , H01M50/15 , H01M50/176 , H01M50/193 , H01M50/3425 , H01M50/545 , H01M50/184 , H01M50/55
摘要： The present disclosure provides a cap assembly for a secondary battery and a secondary battery. The cap assembly includes a cap plate, an electrode terminal, a fixing member, a sealing member and a connecting member, wherein: the cap plate has an electrode lead-out hole; the fixing member is fixed to the cap plate through the connecting member; the electrode terminal includes a terminal board, wherein an outer peripheral surface of the terminal board is surrounded at least in part by the fixing member to fix the electrode terminal to the fixing member, the terminal board is located at a side of the cap plate and covers the electrode lead-out hole, and the outer peripheral surface of the terminal board protrudes out of an inner wall of the electrode lead-out hole; and the sealing member is disposed between the terminal board and the cap plate to seal the electrode lead-out hole.
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2.发明授权公开(公告)号：US11688907B2
公开(公告)日：2023-06-27
申请号：US17842775
申请日：2022-06-16
发明人： Huasheng Su , Chengyou Xing , Wenlong Kang , Quankun Li , Peng Wang
IPC分类号： H01M50/147 , H01M50/143 , H01M50/30 , H01M50/102 , H01M50/533 , H01M50/543
CPC分类号： H01M50/147 , H01M50/102 , H01M50/143 , H01M50/30 , H01M50/533 , H01M50/543
摘要： An end cap assembly includes an end cap configured to close a housing of a battery cell, an adapting member configured to electrically connect an electrode assembly of the battery cell to an electrode terminal of the battery cell, and a supporting member between the adapting member and the end cap. An explosion-proof mechanism provided at the end cap is configured to be actuated to release an internal pressure of the battery cell when thermal runaway occurs in the battery cell. The supporting member is made of a high-temperature-resistant material. An orthographic projection of the adapting member on a first surface of the end cap at least partially overlaps an orthographic projection of the explosion-proof mechanism on the first surface of the end cap and an orthographic projection of the supporting member on the first surface. The first surface is a surface of the end cap facing the housing.
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公开(公告)号：US20230155262A1
公开(公告)日：2023-05-18
申请号：US18099225
申请日：2023-01-19
发明人： Haibo KE , Quankun Li , Peng Wang , Xiaobo Chen
IPC分类号： H01M50/578 , H01M50/107 , H01M10/04 , H01M50/581
CPC分类号： H01M50/578 , H01M50/107 , H01M10/0422 , H01M50/581 , H01M2220/20
摘要： Disclosed are a case, a battery cell, a battery, and an electrical apparatus. The case includes a case body and a pressure relief structure, the case body accommodates an electrode assembly, and the pressure relief structure included a plurality of first pressure relief grooves disposed at intervals on the case body along the circumferential direction of the case body. The case body ruptures along the first pressure relief grooves when the pressure or temperature inside the case body reaches a threshold to release the pressure inside the case body. During a pressure relief process, even if one of the first pressure relief grooves is shielded, the case body can still rupture along other first pressure relief grooves, so as to ensure the normal pressure relief of the case body, reduce the risk of fire and explosion of the battery cell, and improve the safety of the battery cell.
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4.发明申请公开(公告)号：US20230125202A1
公开(公告)日：2023-04-27
申请号：US18048454
申请日：2022-10-21
发明人： Yuqun Zeng , Chengyou Xing , Wenlong Kang , Huasheng Su , Quankun Li
IPC分类号： H01M50/152 , H01M50/164 , H01M10/04
摘要： Embodiments provide a battery cell, a battery, an electric apparatus, and a manufacturing method and system of battery cell. In those embodiments, the battery cell includes a housing, an electrode assembly, and an end cover assembly. The housing provides an opening. The electrode assembly is disposed in the housing. The electrode assembly includes a body portion and a tab. The tab extends from an end of the body portion to the opening. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator. The first electrode plate and the second electrode plate each have a coated area and an uncoated area. A part of the electrode assembly corresponding to the coated areas of the first electrode plate and the second electrode plate is the body portion. The uncoated area of the first electrode plate or the second electrode plate forms the tab.
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5.发明申请公开(公告)号：US20220359958A1
公开(公告)日：2022-11-10
申请号：US17815214
申请日：2022-07-27
发明人： Yuqun Zeng , Wenlong Kang , Chengyou Xing , Peng Wang , Quankun Li , Huasheng Su , Wenzhong Liu
IPC分类号： H01M50/533 , H01M50/593 , H01M50/166 , H01M50/543
摘要： Embodiments provide a battery cell, a battery, an electric apparatus, and a manufacturing method and system of battery cell. In some embodiments, the battery cell includes a housing, an electrode assembly, and an end cover assembly. The housing provides an opening. The electrode assembly is disposed in the housing. The electrode assembly includes a body portion, a tab, and an isolation portion. The tab extends from an end of the body portion to the opening. The isolation portion is disposed on a periphery of the tab. The end cover assembly is configured to cover the opening. The end cover assembly includes an end cover and a first insulator. The end cover is configured to cover the opening and is connected to the housing. The first insulator is disposed on a side of the end cover proximate to an inside of the housing. The first insulator has a concave portion.
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6.发明申请公开(公告)号：US20220294093A1
公开(公告)日：2022-09-15
申请号：US17831673
申请日：2022-06-03
发明人： Qichang Cai , Chengyou Xing , Libin Zhong , Wenwei Chen , Quankun Li , Peng Wang
IPC分类号： H01M50/645 , H01M50/148 , H01M50/186
摘要： The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.
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公开(公告)号：US10763487B2
公开(公告)日：2020-09-01
申请号：US15586051
申请日：2017-05-03
发明人： Quankun Li , Kai Wu , Pinghua Deng , Xiaobo Chen
摘要： A power battery cap structure and a power battery are provided. The power battery cap structure includes a first terminal, a second terminal and a cap assembly; the second terminal is electrically insulated from the cap assembly. The power battery cap structure further includes a resistance which electrically connects 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 and second short circuit part are attached to the cap sheet, when internal pressure of the power battery exceeds predetermined threshold, the first and second short circuit part act and form a first path passing through the first terminal, the second short circuit part, the resistance and the second terminal, and a second path passing through the first terminal, the first and second short circuit part and the second terminal.
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公开(公告)号：US10665827B2
公开(公告)日：2020-05-26
申请号：US15894767
申请日：2018-02-12
发明人： Quankun Li , Baisong Chen , Jian Guo , Peng Wang , Taosheng Zhu
摘要： The present disclosure provides a cap assembly for a secondary battery and a secondary battery. The cap assembly for the secondary battery includes a cap plate having an electrode lead-out hole; and a terminal assembly including a terminal board, a fixing member, a deformable sheet, a conductive sheet and an isolator, wherein the deformable sheet is attached to the terminal board; the conductive sheet includes a first portion provided between the terminal board and the cap plate; the terminal board is fixed to a side of the cap plate through the fixing member and covers the electrode lead-out hole, and the terminal board is electrically connected with the first portion through the deformable sheet; the deformable sheet is configured to deform to be electrically disconnected from the first portion in response to an increase in a pressure inside the secondary battery.
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公开(公告)号：US10476048B2
公开(公告)日：2019-11-12
申请号：US16221959
申请日：2018-12-17
发明人： Jian Guo , Quankun Li , Pinghua Deng , Peng Wang , Lingbo Zhu , Qingkui Chi
摘要： The secondary battery of the present invention includes: a top cover, a first electrode terminal, a second electrode terminal, an electrode-tab pad-plate, an electrode assembly, a first electrode-tab and a second electrode-tab; the first and second electrode terminal are arranged on the top cover, the electrode-tab pad-plate is a strip-plate shaped structure, and is located between the top cover and electrode assembly, the first electrode-tab includes a connecting part, a folding part and a welding part, the connecting part is beneath the electrode tab pad plate, the welding part is above the electrode tab pad plate, and the connecting part is connected with the electrode assembly, the welding part is connected with the first electrode terminal, the folding part is connected with the connecting part and welding part bypassing the electrode-tab pad-plate; the second electrode terminal is connected with the electrode assembly through the second electrode-tab.
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公开(公告)号：US10199615B2
公开(公告)日：2019-02-05
申请号：US15179921
申请日：2016-06-10
发明人： Quankun Li , Pinghua Deng , Peng Wang , Kai Wu , Junjie Jiang
摘要： The top cover structure of the power battery includes a cap plate, a cathode column, a conducting piece and a reversing piece, the conducting piece is electrically connected with the cathode column, the cathode column is insulatedly assembled with the cap plate; the reversing piece includes a welding part, a embossment with a solid core structure and a joint part arranged between the welding part and the embossment, the embossment is arranged at the center of the joint part, the welding part is arranged on the outer margin of the joint part; the welding part is electrically connected with the cap plate, the embossment does not contact the conducting piece, when the pressure inside the power battery increases, the reversing piece receives the pressure inside the power battery, and moves upwards, so that the embossment is electrically connected to the conducting piece.
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