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1. 发明公开

EP3944396A1 SECONDARY BATTERY, ELECTRODE MEMBER THEREOF, BATTERY MODULE AND RELATED APPARATUS 有权
公开(公告)号：EP3944396A1
公开(公告)日：2022-01-26
申请号：EP20877137.8
申请日：2020-10-12
申请人： Contemporary Amperex Technology Co., Limited
发明人： SHENG, Changliang , ZHANG, Zige , XUE, Qingrui , LI, Wei , LI, Jing , WANG, Pengxiang
IPC分类号： H01M10/058
摘要： A secondary battery (7) and an electrode member (1) thereof, a battery module, and a related apparatus are provided. The electrode member (1) includes a current collector (11), an active material layer (12), an adapting sheet (13), and an electrode lead (14). The current collector (11) includes an insulating substrate (111), a first conductive layer (112), and a second conductive layer (113), and the first conductive layer (112) and the second conductive layer (113) are disposed on the insulating substrate (111). The first conductive layer (112) and the second conductive layer (113) each include a coated region (114) and an uncoated region (115), the coated region (114) is coated with an active material layer (12), and the uncoated region (115) is not coated with an active material layer (12), a size of the current collector (11) in a length direction (X) is larger than that in a width direction (Y), and the uncoated region (115) is located on a side of the coated region (114) in a length direction (X). The adapting sheet (13) includes a first conductive member (131) and a second conductive member (132), the first conductive member (131) and the second conductive member (132) are respectively connected to the uncoated region (115) of the first conductive layer (112) and the uncoated region (115) of the second conductive layer (113), and the first conductive member (131) is connected to the second conductive member (132). The electrode lead (14) is connected to the adapting sheet (13), and one end of the electrode lead (14) in the width direction (Y) is beyond the uncoated region (115).

2. 发明公开

EP3627589A1 SECONDARY BATTERY 有权转让
公开(公告)号：EP3627589A1
公开(公告)日：2020-03-25
申请号：EP19153945.1
申请日：2019-01-28
申请人： Contemporary Amperex Technology Co., Limited
发明人： ZHANG, Zige , XUE, Qingrui , LI, Jing , WANG, Pengxiang , LI, Wei
IPC分类号： H01M2/30 , H01M2/36
摘要： The present invention provides a secondary battery, which comprises an electrode assembly, a case and a cap assembly. The electrode assembly comprises a first electrode member, a second electrode member and a separator. The case has an opening and receives the electrode assembly. The cap assembly comprises a cap plate and a first electrode terminal, the cap plate covers the opening of the case; the cap plate has an electrolyte injection hole. The first electrode member comprises a main portion, a first protruding portion and a second protruding portion, the first protruding portion is connected with an end of the main portion close to the cap plate, the second protruding portion connects the first protruding portion and the first electrode terminal. The first protruding portion extends to a lower side of the electrolyte injection hole, and a first end of the first protruding portion is beyond the second protruding portion.

3. 发明公开

EP3993110A1 ELECTRODE SHEET, ELECTROCHEMICAL DEVICE AND DEVICE THEREOF 审中-实审
公开(公告)号：EP3993110A1
公开(公告)日：2022-05-04
申请号：EP20831783.4
申请日：2020-01-15
申请人： Contemporary Amperex Technology Co., Limited
发明人： LI, Wei , LI, Jing , XUE, Qingrui , ZHANG, Yang , ZHANG, Zige , WANG, Pengxiang , LU, Yang
IPC分类号： H01M4/64 , H01M10/0525
摘要： This application relates to an electrode plate, an electrochemical apparatus, and an apparatus thereof. The electrode plate in this application includes a current collector, an electrode active material layer disposed on at least one surface of the current collector, and an electrical connection member electrically connected to the current collector. The electrode active material layer is disposed on a main body portion of the current collector at a zone referred to as a film zone, the electrical connection member and the current collector are welded and connected at an edge of the current collector at a welding zone referred to as a transfer welding zone, and a transition zone of the current collector between the film zone and the transfer welding zone, coated with no electrode active material layer, is referred to as an extension zone. The current collector is a composite current collector. The electrode plate further includes an internal-short-circuit protection layer, and the internal-short-circuit protection layer is an organic insulation layer and covers the electrical connection member in the transfer welding zone and at least a part of the extension zone.

4. 发明公开

EP3637515A1 SECONDARY BATTERY AND ELECTRODE MEMBER THEREOF 有权转让
公开(公告)号：EP3637515A1
公开(公告)日：2020-04-15
申请号：EP19153878.4
申请日：2019-01-28
申请人： Contemporary Amperex Technology Co., Limited
发明人： LIANG, Chengdu , ZHANG, Zige , XUE, Qingrui , LI, Wei , LI, Jing , WANG, Pengxiang
IPC分类号： H01M4/66
摘要： The present invention provides a secondary battery and an electrode member thereof. The electrode member comprises an insulating substrate, a first conducting layer and an active material layer; the first conducting layer is provided on a surface of the insulating substrate, the active material layer is provided at a side of the first conducting layer away from the insulating substrate; the first conducting layer is provided with a stripe-shape groove extending in a height direction, the stripe-shape groove is used for releasing stress of the first conducting layer. The secondary battery comprises an electrode assembly, the electrode assembly comprises the electrode member.

5. 发明公开

EP3637504A1 SECONDARY BATTERY AND ELECTRODE PLATE THEREOF 有权转让
公开(公告)号：EP3637504A1
公开(公告)日：2020-04-15
申请号：EP19153877.6
申请日：2019-01-28
申请人： Contemporary Amperex Technology Co., Limited
发明人： LI, Wei , ZHANG, Zige , LIANG, Chengdu , XUE, Qingrui , LI, Jing , WANG, Pengxiang
IPC分类号： H01M2/26 , H01M4/66 , H01M10/052
摘要： The present invention provides a secondary battery and an electrode plate thereof. The electrode plate comprises a current collector and an active material layer. The current collector comprises an insulating layer and a first conducting layer provided on a surface of the insulating layer; the first conducting layer has a main portion and a protruding portion connected with the main portion, the main portion is coated with the active material layer, the protruding portion is not coated with the active material layer. The electrode plate further comprises a second conducting layer, the second conducting layer comprises a first portion, the first portion is provided on a surface of the protruding portion away from the insulating layer. The secondary battery comprises an electrode assembly, the electrode assembly comprises the electrode plate.

6. 发明公开

EP4120402A1 SECONDARY BATTERY AND ELECTRODE PLATE THEREOF 审中-实审
公开(公告)号：EP4120402A1
公开(公告)日：2023-01-18
申请号：EP22191686.9
申请日：2019-01-28
申请人： Contemporary Amperex Technology Co., Limited
发明人： LI, Wei , ZHANG, Zige , LIANG, Chengdu , XUE, Qingrui , LI, Jing , WANG, Pengxiang
IPC分类号： H01M4/66 , H01M10/052
摘要： The present invention provides a secondary battery and an electrode plate thereof. The electrode plate comprises a current collector and an active material layer. The current collector comprises an insulating layer and a first conducting layer provided on a surface of the insulating layer; the first conducting layer has a main portion and a protruding portion connected with the main portion, the main portion is coated with the active material layer, the protruding portion is not coated with the active material layer. The electrode plate further comprises a second conducting layer, the second conducting layer comprises a first portion, the first portion is provided on a surface of the protruding portion away from the insulating layer. The secondary battery comprises an electrode assembly, the electrode assembly comprises the electrode plate.

7. 发明公开

EP3913711A1 ELECTRODE SHEET, ELECTROCHEMICAL DEVICE, AND DEVICE THEREOF 有权转让
公开(公告)号：EP3913711A1
公开(公告)日：2021-11-24
申请号：EP19935280.8
申请日：2019-12-30
申请人： Contemporary Amperex Technology Co., Limited
发明人： LI, Wei , XUE, Qingrui , LI, Jing , ZHANG, Zige , ZHANG, Yang , LU, Yang , WANG, Pengxiang
IPC分类号： H01M4/66
摘要： This application relates to an electrode plate an electrochemical apparatus, and an apparatus thereof. The electrode plate in this application includes a current collector an electrode active material layer provided on at least one surface of the current collector and an electrical connection member electrically connected to the current collector The electrode active material layer is provided at a zone referred to as a membrane zone on a main body portion of the current collector the electrical connection member and the current collector are welded and connected at a welding zone referred to as an adapting welding zone at an edge of the current collector and a transition zone is referred to as an extension zone where the transition zone is of the current collector between the membrane zone and the adapting welding zone and coated with no electrode active material layer The current collector is a composite current collector. The electrode plate further includes a thermally conductive coating layer and the thermally conductive coating layer covers at least a part of the electrical connection member in the adapting welding zone.

8. 发明公开

EP3930056A1 POSITIVE POLE PIECE, ELECTROCHEMICAL DEVICE AND DEVICE 有权转让
公开(公告)号：EP3930056A1
公开(公告)日：2021-12-29
申请号：EP19925225.5
申请日：2019-12-27
申请人： Contemporary Amperex Technology Co., Limited
发明人： LI, Jing , LI, Wei , XUE, Qingrui , ZHANG, Zige , ZHANG, Yang , WANG, Pengxiang , LU, Yang
IPC分类号： H01M4/66
摘要： This application relates to the battery field, and specifically, to a positive electrode plate, an electrochemical apparatus, and an apparatus. The positive electrode plate in this application includes a current collector and an electrode active material layer disposed on at least one surface of the current collector, where the current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer. A single-sided thickness D2 of the conductive layer satisfies 30 nm ≤ D2 ≤ 3 µm. A thickness D1 of the support layer satisfies 1 µm ≤ D1 ≤ 30 µm. The support layer is made of a polymer material or a polymer composite material. The electrode active material layer includes electrode active materials, a binder, and a conductive agent. And the electrode active materials include small particle active materials with an average particle size D50 of 1.0 µm to 7.0 µm and large particle active materials with an average particle size D50 of 7.1 µm to 20.0 µm. The electrochemical apparatus including the positive electrode plate has high energy density, good safety performance (especially nail penetration safety performance), and good electrochemical performance.

9. 发明公开

EP3719876A1 SECONDARY BATTERY AND ELECTRODE MEMBER THEREOF 有权
公开(公告)号：EP3719876A1
公开(公告)日：2020-10-07
申请号：EP18932316.5
申请日：2018-11-26
申请人： Contemporary Amperex Technology Co., Limited
发明人： ZHANG, Zige , LI, Wei , XUE, Qingrui , LI, Jing , WANG, Pengxiang , ZHANG, Yang
IPC分类号： H01M4/13
摘要： The present invention provides a secondary battery and an electrode member of the secondary battery. The electrode member includes an insulating substrate, a conducting layer and an active material layer. The conducting layer is provided on a surface of the insulating substrate, and the conducting layer includes a main portion and a protruding portion extending from the main portion, the main portion is coated with the active material layer, the protruding portion is not coated with the active material layer. The active material layer includes a first portion and a second portion, the first portion is positioned at an end of the active material layer away from the protruding portion, the second portion is positioned at a side of the first portion close to the protruding portion, and a thickness of the first portion is less than a thickness of the second portion. The secondary battery comprises an electrode assembly, and the electrode assembly comprises the electrode member.

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