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1. 发明公开

EP4391104A1 ELECTRODE PLATE, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE 审中-公开
公开(公告)号：EP4391104A1
公开(公告)日：2024-06-26
申请号：EP23784104.4
申请日：2023-02-27
申请人： Contemporary Amperex Technology Co., Limited
发明人： CHANG, Wen , FU, Chenghua , GUO, Suogang , YE, Yonghuang , ZHU, Chang , HAN, Wenge , ZHANG, Yan
IPC分类号： H01M4/13 , H01M4/64
CPC分类号： Y02P70/50 , Y02E60/10 , H01M4/13 , H01M4/64
摘要： This application discloses an electrode plate, an electrode assembly, a battery cell, a battery, and an electrical device. The electrode plate includes: a current collector (20), where the current collector (20) includes a base film layer (22) and metal layers (24), and the metal layers (24) are disposed on the base film layer (22) in a spaced-apart manner; and active material layers (30), where the active material layers (30) are applied to the base film layer (22) in a spaced-apart manner. Each active material layer (30) at least partially covers a corresponding metal layer (24).

2. 发明公开

EP4369595A1 BATTERY HEATING SYSTEM, CONTROL METHOD AND APPARATUS THEREFOR, AND ELECTRONIC DEVICE 审中-实审
公开(公告)号：EP4369595A1
公开(公告)日：2024-05-15
申请号：EP22937895.5
申请日：2022-04-21
申请人： Contemporary Amperex Technology Co., Limited
发明人： HUANG, Xiaojian , DAN, Zhimin , FU, Chenghua , CHEN, Wei
IPC分类号： H02P27/08 , H01M10/615 , B60L58/27 , B60L58/12
CPC分类号： H02P27/08 , B60L58/12 , B60L58/27 , H01M10/615
摘要： The present application discloses a battery heating system, a control method and a device thereof and electronic equipment. The battery heating system includes an inverter and a motor winding, the inverter is connected to the motor winding and a battery respectively. The control method of the battery heating system includes: acquiring a target voltage vector required for motor operation; and controlling, according to the target voltage vector, the motor winding to output a pulse current to the battery through the inverter. According to embodiments of the present application, heat generated inside the battery itself can be fully utilized to heat the battery, so that the temperature of the battery is maintained within the temperature range required for normal work.

3. 发明公开

EP4318720A1 POSITIVE ELECTRODE PLATE AND BATTERY 审中-实审
公开(公告)号：EP4318720A1
公开(公告)日：2024-02-07
申请号：EP22897383.0
申请日：2022-09-29
申请人： Contemporary Amperex Technology Co., Limited
发明人： CHANG, Wen , FU, Chenghua , YE, Yonghuang , ZHANG, Chenchen , ZHU, Chang
IPC分类号： H01M10/0583 , H01M10/0585 , H01M50/593 , H01M10/0525 , H01M4/13 , H01M10/0587 , H01M50/597
摘要： The present application provides a positive electrode plate and a battery. The positive electrode plate comprises: a cuboid-shaped main body which is formed by stacking a positive electrode active material layer and a positive electrode current collector in a first direction and comprises four side surfaces and two end surfaces opposite to each other in the first direction, the four side surfaces being a first side surface to a fourth side surface; a positive electrode tab formed by extending the positive electrode current collector from the first side surface to the outside of the main body; and an insulating layer formed to cover 95% or more of the second side surface to the fourth side surface.

4. 发明公开

EP4297144A1 ELECTRODE ASSEMBLY AND BATTERY CELL RELATED TO SAME, AND BATTERY, APPARATUS AND MANUFACTURING METHOD 审中-实审
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.

5. 发明公开

EP4199196A1 BATTERY PACK AND ELECTRICAL DEVICE 审中-实审
公开(公告)号：EP4199196A1
公开(公告)日：2023-06-21
申请号：EP21936244.9
申请日：2021-10-26
申请人： Contemporary Amperex Technology Co., Limited
发明人： XU, Baoyun , OUYANG, Shaocong , FU, Chenghua
IPC分类号： H01M12/08 , H01M10/0569 , H01M4/134 , H01M4/133 , H01M10/44
摘要： The present application provides a battery pack and a power consuming device. The battery pack includes a battery pack case and battery cells accommodated in the battery pack case, where an inner space of the battery pack case is composed of a first area and a second area, a first battery cell is provided in the first area, second battery cells are provided in the second area, and the second battery cells are arranged around the first battery cell; the first battery cell and the second battery cells each have a first discharge voltage plateau and a second discharge voltage plateau, and an average discharge voltage in the first discharge voltage plateau is higher than an average discharge voltage in the second discharge voltage plateau; and in each of the first battery cell and the second battery cells, when the sum of a discharge capacity corresponding to the first discharge voltage plateau and a discharge capacity corresponding to the second discharge voltage plateau is 100%, a percentage of the discharge capacity corresponding to the second discharge voltage plateau of the second battery cells is greater than a percentage of the discharge capacity corresponding to the second discharge voltage plateau of the first battery cell.

6. 发明公开

EP3832771A1 NON-AQUEOUS ELECTROLYTE, LITHIUM-ION BATTERY, BATTERY MODULE, BATTERY PACK AND DEVICE 有权
公开(公告)号：EP3832771A1
公开(公告)日：2021-06-09
申请号：EP19865842.9
申请日：2019-09-27
申请人： Contemporary Amperex Technology Co., Limited
发明人： LIANG, Chengdu , CHEN, Peipei , FU, Chenghua , FENG, Junmin
IPC分类号： H01M10/0568
摘要： This application provides a non-aqueous electrolyte, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The non-aqueous solvent includes a non-aqueous solvent and a lithium slat. The non-aqueous solvent includes a carbonate solvent and a high oxidation potential solvent, and the high oxidation potential solvent is selected from one or more of compounds represented by formula I and formula II. Based on a total weight of the non-aqueous solvent, a weight percentage of the high oxidation potential solvent is 10% to 60%. This application can not only improve electrochemical performance of the lithium-ion battery under high temperature and high voltage and improve safety performance such as overcharge safety and hot box safety of the lithium-ion battery, but also ensure that the lithium-ion battery has some kinetic performance.

7. 发明授权

EP3435471B1 ELECTROLYTE AND ELECTROCHEMICAL ENERGY STORAGE DEVICE COMPRISING THE SAME 有权
公开(公告)号：EP3435471B1
公开(公告)日：2020-06-03
申请号：EP18185403.5
申请日：2018-07-25
申请人： Contemporary Amperex Technology Co., Limited
发明人： WANG, Xiaomei , JIANG, Bin , FU, Chenghua , LIU, Jiqiong , ZHOU, Yan , ZHU, Jianwei , HAN, Changlong , LIU, Wenhao
IPC分类号： H01M10/0567 , H01M10/052 , H01G11/64 , H01G11/56 , H01M10/0525 , H01G11/06

8. 发明公开

EP3570351A1 LITHIUM ION BATTERY 有权
公开(公告)号：EP3570351A1
公开(公告)日：2019-11-20
申请号：EP19175039.7
申请日：2019-05-17
申请人： Contemporary Amperex Technology Co., Limited
发明人： ZHANG, Ming , ZHANG, Hao , ZHANG, Cuiping , HAN, Canglong , FU, Chenghua
IPC分类号： H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0567
摘要： The present disclosure provides a lithium ion battery including a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The positive electrode plate includes a positive electrode current collector, and a positive electrode film disposed on a surface of the positive electrode current collector and containing a positive electrode active material. The positive electrode active material includes a matrix, a first coating layer on the matrix in form of discrete islands, and a second coating layer on the first coating layer and the matrix as a continuous layer. The electrolyte includes an additive A and an additive B.The additive A is selected from a group consisting of cyclic sulfate compounds represented by Formula 1 and Formula 2, and combinations thereof, and the additive B is one or two selected from lithium difluorobisoxalate phosphate and lithium tetrafluorooxalate phosphate.

9. 发明公开

EP4228079A1 BATTERY PACK AND ELECTRIC DEVICE THEREFOR 审中-实审
公开(公告)号：EP4228079A1
公开(公告)日：2023-08-16
申请号：EP21962756.9
申请日：2021-11-18
申请人： Contemporary Amperex Technology Co., Limited
发明人： OUYANG, Shaocong , FU, Chenghua , DONG, Miaomiao , YE, Yonghuang , BIE, Changfeng
IPC分类号： H01M50/509
摘要： The present application relates to a battery pack comprising a first battery cell type and a second battery cell type, wherein the first battery cell type includes n first battery cells, and the second battery cell type includes m second battery cells, with n and m being each independently selected from an integer of 1 or more, and wherein the second battery cell has an internal resistance less than that of the first battery cell, with the difference in internal resistance between the first battery cell and the second battery cell being ≥ 0.15 mohm; the battery pack has diagonals Lc defined across length and width directions thereof, an area enclosed by connecting 4 points on the two diagonals Lc that are positioned at a distance of 1/4 Lc from each of the endpoints of the diagonals with lines in sequence, is defined as area A, and the remaining area is defined as area B, wherein the percentage by number of the first battery cells in the battery cells comprised in the area A is 20% to 100%, and the percentage by number of the second battery cells in the battery cells comprised in the area B is 5% to 100%. The battery pack of the present application has improved discharge capacity consistency in the inner and outer areas at low temperature and an improved discharge capacity retention rate. The present application further relates to a power consuming device comprising the battery pack.

10. 发明公开

EP4195352A1 LITHIUM ION BATTERY 审中-实审
公开(公告)号：EP4195352A1
公开(公告)日：2023-06-14
申请号：EP21939595.1
申请日：2021-10-15
申请人： Contemporary Amperex Technology Co., Limited
发明人： GUO, Suogang , FU, Chenghua , ZHANG, Chenchen , YE, Yonghuang
IPC分类号： H01M10/0587 , H01M10/04
摘要： Provided in the present application is a lithium-ion battery, comprising a wound structure formed by winding a negative electrode plate, a separator and a positive electrode plate in a winding direction, the wound structure comprising an arc-shaped bending part, wherein the negative electrode plate comprises a negative electrode material layer, and an insulation layer and a reaction layer located on a surface of the insulation layer are provided on a surface of the negative electrode material layer in the bending part, the reaction layer comprising a lithium storage material.

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