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公开(公告)号：US20210265709A1
公开(公告)日：2021-08-26
申请号：US17317854
申请日：2021-05-11
发明人： Hu XU , Miaomiao Ren , Yuanbao Chen , Long Xu , Donglai Zheng , Lingbo Zhu , Yongshou Lin
IPC分类号： H01M50/54 , H01M50/564
摘要： This application provides a current collecting member, a secondary battery, and a fabrication method. The secondary battery includes an electrode assembly, a housing, a top cover assembly and current collecting members. The electrode assembly includes a main body portion and a first tab extending from an end of the main body portion along a transverse direction. The top cover assembly includes a top cover plate and a first electrode terminal disposed on the top cover plate connected to the housing. The current collecting member is connected to the first tab and the first electrode terminal. The current collecting member includes a substrate and a support plate, the substrate being provided at a side of the main body portion along a transverse direction, the support plate extending from an end part of the substrate in a longitudinal direction, and the first tab being connected to the support plate.
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公开(公告)号：US11469481B2
公开(公告)日：2022-10-11
申请号：US16879920
申请日：2020-05-21
发明人： Hu Xu , Youlei Lai , Yuanbao Chen , Miaomiao Ren , Donglai Zheng , Haizu Jin
摘要： A battery unit includes: an electrode assembly, including a main body portion, and a negative tab and a positive tab, which respectively extend out from both ends of the main body portion along the length direction; a negative terminal and a positive terminal, arranged at the top of the electrode assembly; a first current collector for electrically connecting the negative tab with the negative terminal; and a second current collector for electrically connecting the positive tab with the positive terminal. The first current collector includes a first guiding plate. The first guiding plate is of a flat plate structure, and the negative tab is bent to one side of the first guiding plate away from the main body portion and is connected with the first guiding plate.
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公开(公告)号：US11069942B2
公开(公告)日：2021-07-20
申请号：US16429914
申请日：2019-06-03
发明人： Dongyang Shi , Yuanbao Chen , Haizu Jin , Zhenhua Li , Ning Chen , Fei Hu , Tian Wu
IPC分类号： H01M2/30 , H01M50/529 , H01M50/147 , H01M50/531
摘要： The present invention relates to a secondary battery and a battery module. The secondary battery includes: a casing including a receiving cavity having an opening; a top cover assembly, and an electrode assembly disposed in the receiving cavity, wherein the electrode assembly includes two end faces disposed opposite to each other in a first direction perpendicular to a depth direction of the receiving cavity, a lug extending from each end face; the lug is a layered structure and has a redundant section near the end face and a connecting section connected to the redundant section; the current collecting member includes a current collecting portion fixedly connected to the connecting section. The lug of the secondary battery of the embodiment of the present invention has the redundant section, which can effectively buffer the movement and reduce the possibility that the lug is torn or broken due to an excessive tensile stress.
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公开(公告)号：US20210135310A1
公开(公告)日：2021-05-06
申请号：US17128054
申请日：2020-12-19
发明人： Shoujun Huang , Yuanbao Chen , Huasheng Su , Peng Wang
IPC分类号： H01M50/148 , H01M10/0525 , H01M50/184 , H01M50/188 , H01M50/552 , H01M50/172
摘要： The present application relates to a top cover assembly and a secondary battery. The top cover assembly includes: a top cover plate including a lead-out hole and an inside surface forming the lead-out hole; an electrode terminal including a cylindrical portion penetrating the lead-out hole and an annular flange, the annular flange extending beyond the inside surface along the lead-out hole; a sealing ring including a barrel portion and a ring portion, surrounding the cylindrical portion by the barrel portion. The ring portion includes a first ring body and a second ring body distributed in the radial direction; an insulating member including a connecting portion and an extension portion, and the connecting portion seals the second ring body; a portion of the insulating member beyond the second ring body forms the extension portion, and in the radial direction, the extension portion extends beyond the annular flange.
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公开(公告)号：US20200321591A1
公开(公告)日：2020-10-08
申请号：US16429914
申请日：2019-06-03
发明人： Dongyang Shi , Yuanbao Chen , Haizu Jin , Zhenhua Li , Ning Chen , Fei Hu , Tian Wu
摘要： The present invention relates to a secondary battery and a battery module. The secondary battery includes: a casing including a receiving cavity having an opening; a top cover assembly, and an electrode assembly disposed in the receiving cavity, wherein the electrode assembly includes two end faces disposed opposite to each other in a first direction perpendicular to a depth direction of the receiving cavity, a lug extending from each end face; the lug is a layered structure and has a redundant section near the end face and a connecting section connected to the redundant section; the current collecting member includes a current collecting portion fixedly connected to the connecting section. The lug of the secondary battery of the embodiment of the present invention has the redundant section, which can effectively buffer the movement and reduce the possibility that the lug is torn or broken due to an excessive tensile stress.
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公开(公告)号：US20200212379A1
公开(公告)日：2020-07-02
申请号：US16817289
申请日：2020-03-12
发明人： Dongyang SHI , Yuanbao Chen , Ning Chen , Haizu Jin , Zhenhua Li , Fei Hu
IPC分类号： H01M2/04 , H01M2/26 , H01M2/06 , H01M10/0525
摘要： The present disclosure provides a secondary battery and a battery module. The secondary battery includes an electrode assembly, a case and a cap assembly. The case has an accommodating cavity, and the electrode assembly is accommodated in the accommodating cavity. The electrode assembly comprises electrode units stacked in an axial direction of the accommodating cavity. The cap assembly comprises a cap plate and a vent piece, the cap plate is connected with the case and positioned at a side of the electrode assembly in the axial direction. The cap plate is provided with a through-hole, and the vent piece covers the through-hole. The cap plate has a first inner surface, the vent piece has a second inner surface, and a distance between the first inner surface and the electrode assembly is larger than a distance between the second inner surface and the electrode assembly.
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公开(公告)号：US11715867B2
公开(公告)日：2023-08-01
申请号：US17113585
申请日：2020-12-07
发明人： Ningsheng Wu , Chengyou Xing , Yuanbao Chen , Peng Wang , Quankun Li
IPC分类号： H01M50/591 , H01M50/148 , H01M50/547 , H01M50/552 , H01M50/588 , H01M50/593
CPC分类号： H01M50/591 , H01M50/148 , H01M50/547 , H01M50/552 , H01M50/588 , H01M50/593 , H01M2220/20
摘要： The embodiments of the application provides an end cover assembly, a battery cell, a battery module and a device, the end cover assembly is used for the battery cell, the end cover assembly includes an end cover; an electrode terminal disposed on the end cover; an insulating member for insulating the electrode terminal and the end cover and disposed to surround the electrode terminal; wherein the insulating member abuts the electrode terminal, at least one of the insulating member and the electrode terminal is provided with a stress relief groove, the stress relief groove is configured to absorb stress generated by the electrode terminal's abutting the insulating member.
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公开(公告)号：US11335978B2
公开(公告)日：2022-05-17
申请号：US16424058
申请日：2019-05-28
发明人： Yuanbao Chen , Rui Yang , Dongyang Shi , Ning Chen , Fei Hu , Zhenhua Li
IPC分类号： H01M10/04 , H01M50/531 , H01M50/20
摘要： The disclosure relates to a secondary battery and a battery module. The secondary battery comprises: a case comprising a receiving hole having an opening; a cap assembly sealingly connected with the case to close the opening; an electrode assembly disposed in the receiving hole, wherein the electrode assembly comprises two end surfaces opposite to each other in a first direction perpendicular to an axial direction of the receiving hole and tabs extending from respective end surfaces, and the electrode assembly comprises two or more electrode units which are stacked in the axial direction; and a current collecting unit comprising a first sheet and a first current collecting sheet connected to the first sheet, wherein both the first sheet and the first current collecting sheet extend in the axial direction, and the tab is bent with respect to the first direction and is electrically connected to the first current collecting sheet.
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公开(公告)号：US20210328313A1
公开(公告)日：2021-10-21
申请号：US17113585
申请日：2020-12-07
发明人： Ningsheng WU , Chengyou Xing , Yuanbao Chen , Peng Wang , Quankun Li
IPC分类号： H01M50/591 , H01M50/148 , H01M50/547 , H01M50/552 , H01M50/588 , H01M50/593
摘要： The embodiments of the application provides an end cover assembly, a battery cell, a battery module and a device, the end cover assembly is used for the battery cell, the end cover assembly includes an end cover; an electrode terminal disposed on the end cover; an insulating member for insulating the electrode terminal and the end cover and disposed to surround the electrode terminal; wherein the insulating member abuts the electrode terminal, at least one of the insulating member and the electrode terminal is provided with a stress relief groove, the stress relief groove is configured to absorb stress generated by the electrode terminal's abutting the insulating member.
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公开(公告)号：US20200373547A1
公开(公告)日：2020-11-26
申请号：US16879920
申请日：2020-05-21
发明人： Hu XU , Youlei Lai , Yuanbao Chen , Miaomiao Ren , Donglai Zheng , Haizu Jin
摘要： A battery unit includes: an electrode assembly, including a main body portion, and a negative tab and a positive tab, which respectively extend out from both ends of the main body portion along the length direction; a negative terminal and a positive terminal, arranged at the top of the electrode assembly; a first current collector for electrically connecting the negative tab with the negative terminal; and a second current collector for electrically connecting the positive tab with the positive terminal. The first current collector includes a first guiding plate. The first guiding plate is of a flat plate structure, and the negative tab is bent to one side of the first guiding plate away from the main body portion and is connected with the first guiding plate.
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