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公开(公告)号：US20230313347A1
公开(公告)日：2023-10-05
申请号：US18330490
申请日：2023-06-07
发明人： Jianwei PAN , Shitong CHEN , Bin XIE , Fenggang ZHAO
IPC分类号： C22C24/00
CPC分类号： C22C24/00
摘要： A lithium strip that can be used in lithium supplementation equipment is described. The lithium strip has a first surface, and a thinned area is formed at the edge of the first surface along the width direction of the lithium strip to form a space for accommodating a release agent at the thinned area. The thinned area is designed to enable the lithium strip to pick up more release agent when it is applied to a coating device, and the release agent can remain in the above thinned area. The presence of the thinned area in the lithium strip can reduce the lithium load per unit width, so that during the calendering process of the lithium strip, there will be no calendering exceeding the preset width, so that the lithium strip will not stick to the roller after calendering.
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公开(公告)号：US20230146274A1
公开(公告)日：2023-05-11
申请号：US17888497
申请日：2022-08-16
发明人： Yingjie GUAN , Yuzhen ZHAO , Qingyan MA , Yan WEN , Qisen HUANG , Fenggang ZHAO
CPC分类号： H01M4/364 , H01M4/386 , H01M4/587 , H01M4/622 , H01M2004/027
摘要： The present application provides a silicon carbon negative electrode material, a negative electrode sheet including the same, a secondary battery, a battery module, a battery pack and a power consumption apparatus. A battery composed of a negative electrode prepared by the silicon carbon negative electrode material in the present application as a working electrode, metal lithium as a counter electrode and an electrolyte containing a lithium ion conductive substance may be charged and discharged, and in a case of drawing a relationship graph between a differential value dQ/dV obtained by differentiating a charging and discharging capacity Q by a working electrode potential V and the working electrode potential V, when energizing the negative electrode material in a direction of delithiation, a ratio of a maximum Y of dQ/dV between 400-480 mV to a maximum X of dQ/dV between 200-255 mV may be in a range of 3.5 to 15.
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公开(公告)号：US20210036285A1
公开(公告)日：2021-02-04
申请号：US16722251
申请日：2019-12-20
发明人： Siying HUANG , Shiyao ZHANG , Quankun LI , Jinmei XU , Fenggang ZHAO , Xuehui WANG
摘要： Provided are a battery module, a secondary battery and a cap plate assembly. The battery module includes a plurality of secondary batteries arranged in sequence. The secondary battery includes an electrode assembly, a case and a cap plate assembly. The electrode assembly is received in the case and the cap plate assembly is connected to the case. The cap plate assembly includes a cap plate, an explosion-proof sheet and a fixing piece. The cap plate is disposed with a through hole, the explosion-proof sheet is disposed at the cap plate and seals the through hole, and the explosion-proof sheet has a weak region. The fixing piece connects the cap plate and the explosion-proof sheet. The fixing piece has a lower melting point than the cap plate and the explosion-proof sheet.
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4.发明公开公开(公告)号：US20240322302A1
公开(公告)日：2024-09-26
申请号：US18669135
申请日：2024-05-20
发明人： Hu XU , Haizu JIN , Fenggang ZHAO , Siying HUANG
IPC分类号： H01M50/103 , H01M10/04 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6555 , H01M10/6567 , H01M50/131 , H01M50/15 , H01M50/209 , H01M50/249 , H01M50/474 , H01M50/531 , H01M50/548
CPC分类号： H01M50/103 , H01M10/0404 , H01M10/0431 , H01M10/613 , H01M10/625 , H01M10/647 , H01M10/6555 , H01M10/6567 , H01M50/131 , H01M50/15 , H01M50/209 , H01M50/249 , H01M50/474 , H01M50/531 , H01M50/548 , H01M2220/20
摘要： A battery cell includes: a hexahedral housing, where the hexahedral housing has a first wall and a second wall oppositely arranged, the first wall is provided with a positive electrode terminal, and the second wall is provided with a negative electrode terminal; and a cylindrical electrode assembly arranged in the housing, where the axial direction of the cylindrical electrode assembly is perpendicular to the first wall or the second wall, a positive electrode tab of the cylindrical electrode assembly is arranged at a first end of the cylindrical electrode assembly and connected to the positive electrode terminal, and a negative electrode tab of the cylindrical electrode assembly is arranged at a second end of the cylindrical electrode assembly and connected to the negative electrode terminal.
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公开(公告)号：US20230411773A1
公开(公告)日：2023-12-21
申请号：US18239762
申请日：2023-08-30
发明人： Chao JIN , Miaomiao REN , Tianguang ZHU , Zhipeng DAI , Guanfusheng YAN , Fenggang ZHAO
IPC分类号： H01M50/342 , H01M50/103 , H01M50/15 , H01M50/169 , H01M50/627
CPC分类号： H01M50/3425 , H01M50/103 , H01M50/15 , H01M50/169 , H01M50/627
摘要： The present application provides a battery cell, a battery, and an electrical apparatus. The battery cell may comprise a case, a cover plate, and a pressure relief apparatus. The case may have an opening; the cover plate may cover the opening, and the cover plate may be welded with the case to form a welding seam; the pressure relief apparatus may be disposed on the cover plate, the pressure relief apparatus may be provided with a weak region, the weak region may be configured to be broken to release internal pressure when the internal pressure or temperature of the battery cell reaches a threshold, and the minimum distance between the edge of the weak region and the welding seam may be greater than or equal to 3 mm.
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公开(公告)号：US20230356964A1
公开(公告)日：2023-11-09
申请号：US18356510
申请日：2023-07-21
发明人： Yi LU , Tao FENG , Xinlu FEI , Bin XIE , Keqiang LI , Fenggang ZHAO
IPC分类号： B65G53/00
CPC分类号： B65G53/00
摘要： A disposal system for battery includes: a moving mechanism; an accommodating mechanism, including a first side and a second side that are opposite each other along a length direction of the accommodating mechanism; a plurality of immersion mechanisms, arranged in sequence along the length direction of the accommodating mechanism, the plurality of immersion mechanisms are movably connected to the accommodating mechanism, and the immersion mechanism accommodates an immersion liquid; and a transfer mechanism, arranged opposite the first side of the accommodating mechanism and configured to transfer waste of a battery to the immersion mechanisms. The accommodating mechanism is provided in plurality, and the plurality of accommodating mechanisms are arranged along a width direction of the accommodating mechanism. In adjacent two of the accommodating mechanisms, the second side of one of the accommodating mechanisms is opposite the first side of another one of the accommodating mechanisms.
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公开(公告)号：US20230127246A1
公开(公告)日：2023-04-27
申请号：US18086431
申请日：2022-12-21
发明人： Yongqiang XU , Xinlu FEI , Bin XIE , Shitong CHEN , Keqiang LI , Tao FENG , Fenggang ZHAO
IPC分类号： H01M4/04 , H01M10/0587 , G01B11/04
摘要： This application discloses a lithiation device for applying a lithium film on an electrode plate. The lithiation device includes: a rolling mechanism including a first roller and a second roller, the two rollers configured to roll the electrode plate and the lithium film to apply the lithium film on the electrode plate; an adjustment mechanism connected to the rolling mechanism and configured to adjust a gap and/or a rolling force between the first roller and the second roller; a first monitoring mechanism configured to monitor a length of the electrode plate after the electrode plate passes through the rolling mechanism; and a controller configured to control the adjustment mechanism based on a comparison result of the length monitored by the first monitoring mechanism and a target length so that the length of the electrode plate after the electrode plate passes through the rolling mechanism approximates to the target length.
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公开(公告)号：US20220013855A1
公开(公告)日：2022-01-13
申请号：US17113047
申请日：2020-12-05
发明人： Fenggang ZHAO , Haibo KE , Quankun LI , Ningsheng WU , Zhanyu SUN
IPC分类号： H01M50/342 , H01M10/0525 , H01M50/103 , H01M50/209 , H01M50/505
摘要： Disclosed are a battery box, a battery cell, a battery, and a method and apparatus for preparing the battery box. The battery box includes: a first wall and a second wall, the first wall intersecting the second wall; and a pressure relief mechanism including a first portion and a second portion connected to each other, the first portion and the second portion being respectively arranged at the first wall and the second wall, wherein the first portion and/or the second portion are/is configured to be able to fracture, when an internal pressure of the battery box reaches a threshold, to relieve the internal pressure. Therefore, according to the battery box, the battery cell, the battery, and the method and apparatus for preparing the battery box of embodiments of the present application, thereby the performance of the pressure relief mechanism on the battery box is improved.
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公开(公告)号：US20210328251A1
公开(公告)日：2021-10-21
申请号：US16468946
申请日：2018-12-04
发明人： Fenggang ZHAO , Junda TU , Xiaobo CHEN , Dan SHEN , Xuehui WANG
IPC分类号： H01M10/04 , H01M10/653 , H01M10/658 , H01M10/613 , H01M10/647
摘要： The disclosure relates to a battery module and the technical field of energy storage. The battery module comprises: a frame having an accommodation space; and a plurality of batteries successively arranged in the accommodation space in a thickness direction of the battery, wherein a partition is arranged between adjacent batteries, wherein the partition has a compressibility and a coefficient of compressibility δ1 at a pressure equal to or smaller than 2 MPa, which meets a relation C0×δ1≤A0×0.2, wherein C0 is an initial thickness of the partition, and A0 is an initial thickness of the battery.
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公开(公告)号：US20230411670A1
公开(公告)日：2023-12-21
申请号：US18239127
申请日：2023-08-29
发明人： Bin XIE , Shitong CHEN , Yi LU , Yuanyuan SHEN , Keqiang LI , Fenggang ZHAO
IPC分类号： H01M10/04
CPC分类号： H01M10/0409
摘要： The present application provides a pole piece forming apparatus, which may include an incoming structure, a slitter, a plurality of winders and a wrinkle remover. The incoming structure may provide a master pole piece. The slitter may slit the master pole piece into a plurality of pole pieces. The winders may pull the transport of the pole pieces, respective winding devices may wind one corresponding pole piece, and the slitter may be disposed between the incoming structure and the winders. The wrinkle remover may be arranged between the slitter and the winders. The wrinkle remover may include a first roller and a second roller that may be provided opposite to each other, the first roller may include a first rolling part, and the first rolling part and the second roller may be used for rolling an edge of a slitting edge of the pole piece.
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