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1. 发明公开

EP4297144A1 ELECTRODE ASSEMBLY AND BATTERY CELL RELATED TO SAME, AND BATTERY, APPARATUS AND MANUFACTURING METHOD 审中-公开
公开(公告)号：EP4297144A1
公开(公告)日：2023-12-27
申请号：EP22866238.3
申请日：2022-07-11
申请人： Contemporary Amperex Technology Co., Limited
发明人： GUO, Suogang , FU, Chenghua , YE, Yonghuang , ZHANG, Chenchen
IPC分类号： H01M10/0587 , H01M50/457 , H01M50/466
摘要： Disclosed in the present application are an electrode assembly and a battery cell related to same, and a battery, an apparatus and a manufacturing method. The electrode assembly comprises: a first electrode plate and a second electrode plate, which have opposite polarities; and a spacer, which is used for separating the first electrode plate and the second electrode plate, wherein the spacer comprises at least two layers, and the first electrode plate, the second electrode plate and the spacer are wound to form the electrode assembly. By means of the electrode assembly, the service life of a battery can be prolonged, and the safety of the battery can be improved.

2. 发明公开

EP4254637A1 ELECTRODE ASSEMBLY AND MANUFACTURING METHOD THEREFOR, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE 失效
公开(公告)号：EP4254637A1
公开(公告)日：2023-10-04
申请号：EP21965020.7
申请日：2021-11-23
申请人： Contemporary Amperex Technology Co., Limited
发明人： PENG, Shuangjuan , XIAO, Haihe , ZHANG, Xiaowen , LI, Baiqing , JIN, Haizu
IPC分类号： H01M50/466 , H01M10/058 , H01M10/0583
摘要： The present application relates to the field of batteries, and in particular, to an electrode assembly and a manufacturing method therefor, a battery cell, a battery, and a power consuming device. The electrode assembly includes: a first electrode plate; a first separator; and a second separator. The second separator and the first separator are located on two opposite sides of the first electrode plate in a thickness direction, and the first separator and the second separator are both turned over and enclose an edge of the first electrode plate that is provided with no tab. On this basis, the safety performance of the battery can be effectively improved.

3. 发明公开

EP4109615A1 SHEET CUTTING AND ADHERING APPARATUS 审中-公开
公开(公告)号：EP4109615A1
公开(公告)日：2022-12-28
申请号：EP22749970.4
申请日：2022-01-28
申请人： LG Energy Solution, Ltd.
发明人： LEE, Hyeon Jin , KIM, Sang Wook , PARK, Sung Chul , PARK, Sin Young , PARK, Dong Hyeuk , LEE, Ji Woon
IPC分类号： H01M10/04 , H01M50/466 , H01M50/403
摘要： The present invention relates to a sheet cutting and fusion apparatus including an upper cutter disposed at the uppermost surface of at least two sheets that overlap each other; and a lower cutter disposed at the lowermost surface of the sheets, wherein the upper cutter includes a first cutting surface configured for contacting the lower cutter without any step when the upper cutter is moved vertically; a first fusion portion having a surface parallel to the first cutting surface in the state in which a first step is formed so as to extend from the first cutting surface; a lower surface configured to face the sheets; and a first connection portion having a curved corner that connects the lower surface and the first fusion portion to each other, and the lower cutter includes a second cutting surface configured for contacting the upper cutter without any step when the lower cutter is moved vertically; a second fusion portion having a surface parallel to the second cutting surface in the state in which a second step is formed so as to extend from the second cutting surface; an upper surface configured to face the sheets; and a second connection portion having a curved corner that connects the upper surface and the second fusion portion to each other. The sheet cutting and fusion apparatus includes a structure capable of not only cutting the parts of cutting sheets on which electrodes are disposed spaced apart from each other between the electrodes but also fusing the cut outer peripheries of the sheets.

4. 发明公开

EP4376203A1 SEPARATOR LAMINATE, ELECTRODE ASSEMBLY COMPRISING SAME, AND METHOD FOR MANUFACTURING ELECTRODE ASSEMBLY 审中-公开
公开(公告)号：EP4376203A1
公开(公告)日：2024-05-29
申请号：EP22876690.3
申请日：2022-08-30
申请人： LG Energy Solution, Ltd.
发明人： HAN, Hyun Gyu , KWON, Kyeong Keun
IPC分类号： H01M50/449 , H01M50/466 , H01M50/403 , H01M10/04
CPC分类号： Y02P70/50 , Y02E60/10 , H01M50/466 , H01M50/403 , H01M10/04 , H01M50/449
摘要： An electrode assembly according to an embodiment of the present invention includes: a separator stack which has a sealing portion formed in central regions of a plurality of separators stacked on each other, wherein the separator stack is folded about the sealing portion; and a plurality of electrodes inserted between the plurality of separators. The sealing portion may be positioned on one side of the plurality of electrodes.

5. 发明授权

EP3297064B1 NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND VEHICLE 有权
公开(公告)号：EP3297064B1
公开(公告)日：2024-04-24
申请号：EP17158094.7
申请日：2017-02-27
IPC分类号： H01M4/36 , H01M4/485 , H01M50/103 , H01M50/107 , H01M50/209 , H01M50/213 , H01M50/249 , B60L58/10 , H01M50/105 , H01M50/211 , H01M50/417 , H01M50/466 , H01M50/491
CPC分类号： H01M4/366 , H01M4/485 , B60L58/10 , Y02E60/10 , Y02T10/70 , Y02P70/50 , H01M50/105 , H01M50/211 , H01M50/213 , H01M50/417 , H01M50/466 , H01M50/249 , H01M50/491 , H01M50/209 , H01M50/103 , H01M50/107

6. 发明授权

EP3680954B1 LEAD STORAGE BATTERY 有权
公开(公告)号：EP3680954B1
公开(公告)日：2024-03-27
申请号：EP18872877.8
申请日：2018-10-05
发明人： INAGAKI, Satoshi , WADA, Hidetoshi , KYO, Masaaki
IPC分类号： H01M10/12 , H01M50/466 , H01M10/06

7. 发明公开

EP4329028A1 METHOD FOR MANUFACTURING SECONDARY BATTERY AND SECONDARY BATTERY 审中-公开
公开(公告)号：EP4329028A1
公开(公告)日：2024-02-28
申请号：EP23189151.6
申请日：2023-08-02
申请人： Prime Planet Energy & Solutions, Inc.
发明人： MAEDA, Tomonori
IPC分类号： H01M10/04 , H01M10/0525 , H01M50/417 , H01M50/449 , H01M50/46 , H01M50/466 , H01M50/451 , H01M50/457
摘要： A method for manufacturing a secondary battery herein disclosed includes: an assembly preparing step of accommodating an electrode body and an electrolyte into a battery case, and preparing a battery assembly; and a high temperature treatment step of restraining the battery assembly under a restraining pressure of at least 0.35 MPa or more, and retaining the battery assembly so that the temperature of the battery assembly may become at least 80°C or more. Herein, the high temperature treatment step is carried out so as to satisfy a formula (1): A ≥ B > C; where A (N/m) represents a peel strength at an interface between a separator and a negative electrode active material layer, B (N/m) represents a peel strength at an interface between the negative electrode active material layer and a negative electrode current collector, and C (N/m) represents a peel strength in the negative electrode active material layer.

8. 发明公开

EP4293768A1 ELECTRODE ASSEMBLY MANUFACTURING PROCESS 审中-公开
公开(公告)号：EP4293768A1
公开(公告)日：2023-12-20
申请号：EP22828674.6
申请日：2022-06-17
申请人： LG Energy Solution, Ltd.
发明人： JUNG, Jea Bong , AHN, Chang Bum , SEO, Sangjin , SIM, Dongguk , JANG, Yeongcheol
IPC分类号： H01M10/04 , H01M50/466
摘要： Provided is an electrode assembly manufacturing process comprising the steps of introducing a second separator 32, whose length is extended in the left and right directions, into a structure formed by repeatedly stacking the positive electrodes 10, the first separators 31 and the negative electrodes 20 to wrap the structure; simultaneously pressing the upper end and the lower end of the structure comprising the introduced second separator 32 to strengthen the adhesive strength between the separator and the electrode; bonding the left and right excess portions of the second separator 32 surrounding the structure up and down, thereby adjusting to meet the standard requirements of the structure; and fixing the bonded second separator 32 by bonding left and right. The electrode assembly manufacturing process enables minimizing the influence on the initial structure formed by repeatedly stacking positive electrodes, separators, and negative electrodes, and also wrapping to suit the size of the structure, thereby increasing the utilization value of the electrode assembly.

9. 发明公开

EP4261969A1 ELECTRODE ASSEMBLY, AND MANUFACTURING APPARATUS AND MANUFACTURING METHOD THEREFOR 失效
公开(公告)号：EP4261969A1
公开(公告)日：2023-10-18
申请号：EP22896047.2
申请日：2022-11-16
申请人： LG Energy Solution, Ltd.
发明人： AHN, Gyu Dae
IPC分类号： H01M10/04 , H01M50/466
摘要： An electrode assembly manufacturing device according to the present disclosure includes a transfer unit for transferring an electrode assembly to a sealing position, multiple sealing blocks, and a lower support. The lower support is controlled to move up and down in a first state in which the sealing block is moved forward toward the electrode assembly, so that both distal ends of multiple separators in the longitudinal direction are bent downward and sealed while being in contact with the sealing block. Since the electrode assembly manufacturing device according to embodiments of the present invention heat-seals the end of the separator in a downwardly bent state, it is possible to manufacture an electrode assembly that prevents blocking of the separator when sealing a pouch.

10. 发明公开

EP4203120A1 BATTERY MODULE, USAGE METHOD FOR BATTERY MODULE, AND MANUFACTURING METHOD FOR BATTERY CELL 审中-实审
公开(公告)号：EP4203120A1
公开(公告)日：2023-06-28
申请号：EP21861289.3
申请日：2021-08-16
申请人： Envision AESC Japan Ltd.
发明人： MATSUMURA, Naonori
IPC分类号： H01M10/04 , H01M10/052 , H01M10/0583 , H01M50/46 , H01M50/466
摘要： Abstract: A positive electrode (110) is a first electrode, and a negative electrode (120) is a second electrode having an area larger than that of the first electrode. A separator (130) is folded and extends through between the positive electrode (110) and the negative electrode (120) adjacent to each other. A folded portion of the separator (130) covers a portion of the negative electrode (120) on the same side in each of a plurality of battery cells (10). Specifically, the folded portion of the separator (130) covers the upper portion of the negative electrode (120) in each of the plurality of battery cells (10).

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