专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2018224167A1 LITHIUM BATTERY AND USE OF TRIPHENYLPHOSPHINE OXIDE AS AN ELECTROLYTE ADDITIVE THEREIN 审中-公开
公开(公告)号：WO2018224167A1
公开(公告)日：2018-12-13
申请号：PCT/EP2017/064147
申请日：2017-06-09
申请人： BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT , CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
发明人： LEE, Juhyon , KOESTER, Thomas , BELTROP, Kolja , KLEIN, Sven , QI, Xin , PLACKE, Tobias , WINTER, Martin , TAO, Liang , YAN, Jian , LU, Lin , LIANG, Chengdu
IPC分类号： H01M6/16
CPC分类号： H01M6/168
摘要： The present invention relates to a lithium battery comprising an anode comprising an active anode material, a cathode comprising an active cathode material comprising lithium nickel manganese cobalt oxide (NMC), and an electrolyte separating anode and cathode, wherein the electrolyte comprises a solvent or solvent mixture and lithium hexafluorophosphate, wherein the electrolyte further comprises triphenylphosphine oxide. Moreover, the present invention further relates to the use of triphenylphosphine oxide as additive in the lithium battery for enhancing one characteristic selected from the group consisting of reversible capacity, Coulombic efficiency, cyclic stability and combinations thereof.

2. 发明公开

EP4303965A2 CURRENT COLLECTOR, ELECTRODE PLATE INCLUDING THE SAME AND ELECTROCHEMICAL DEVICE 审中-实审
公开(公告)号：EP4303965A2
公开(公告)日：2024-01-10
申请号：EP23211500.6
申请日：2019-04-12
申请人： Contemporary Amperex Technology Co., Limited
发明人： LIANG, Chengdu , HUANG, Huafeng , HUANG, Qisen , LIU, Xin
IPC分类号： H01M4/74
摘要： The present disclosure relates to the technical field of battery, and in particular, relates to a current collector. The current collector includes an insulation layer; a conductive layer at least located on at least one surface of the insulation layer; and a first protective layer provided on a surface of the conductive layer facing away from the insulation layer. A second protective layer provided on a surface of the conductive layer facing towards the insulation layer. The current collector is provided with a plurality of holes penetrating through the insulation layer, the conductive layer and the first protective layer. The first protective layer is made of a metal oxide. The second protective layer is made of a metal, a metal oxide, or a conductive carbon. The conductive layer has a thickness of D2, 30 nm ≦ D2 ≦ 3 µm , wherein the first protective layer has a thickness of D3, and the second protective layer has a thickness of D3' ; wherein D3 ≦ 0.1D2 and 1nm ≦ D3 ≦ 200nm, and wherein D3' ≦ 0.1D2 and 1nm ≦ D3'≦ 200nm. The current collector according to the present disclosure can increase a short-circuit resistance of the battery when the short circuit occurs under abnormal conditions, such that the heat generated by the short circuit can be greatly reduced, thereby improving the safety performance of the battery. Moreover, the protective layer can increase the mechanical strength of the conductive layer and increase the operation stability and service lift of the current collector. Moreover, providing the plurality of holes penetrating through the insulation layer, the conductive layer and the first protective layer can facilitate electrolyte passing through, improve wettability of electrolyte, improve electrochemical properties of the battery, and increase the weight energy density of the battery.

3. 发明公开

EP4220778A2 POSITIVE ELECTRODE CURRENT COLLECTOR, POSITIVE ELECTRODE PIECE, ELECTROCHEMICAL DEVICE, BATTERY MODULE, BATTERY PACK, AND APPARATUS 审中-实审
公开(公告)号：EP4220778A2
公开(公告)日：2023-08-02
申请号：EP22215980.8
申请日：2019-11-20
申请人： Contemporary Amperex Technology Co., Limited
发明人： LIANG, Chengdu , HUANG, Qisen , WANG, Shiwen
IPC分类号： H01M4/66 , H01M4/02
摘要： This application discloses a positive current collector, a positive electrode plate, an electrochemical apparatus, a battery module, a battery pack, and a device. The positive current collector includes a support layer, having two opposite surfaces in a thickness direction of the support layer; and an aluminum-based conductive layer, disposed on at least one of the two surfaces of the support layer. A thickness D 1 of the aluminum-based conductive layer is 300nm≤D 1 ≤2µm; a density of the aluminum-based conductive layer is 2.5g/cm 3 to 2.8g/cm 3 ; and when a tensile strain of the positive current collector is 2.5%, a sheet resistance growth rate T of the aluminum-based conductive layer is T≤10%. The positive current collector provided in this application has a relatively small weight and higher electrical performance, so that the electrochemical apparatus provides a higher weight energy density and higher electrochemical performance.

4. 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.

5. 发明公开

EP4113686A1 LITHIUM ION BATTERY, BATTERY MODULE, BATTERY PACK AND ELECTRICITY UTILIZATION APPARATUS 审中-实审
公开(公告)号：EP4113686A1
公开(公告)日：2023-01-04
申请号：EP22745145.7
申请日：2022-01-21
申请人： Contemporary Amperex Technology Co., Limited
发明人： ZOU, Hailin , CHEN, Peipei , PENG, Chang , LIANG, Chengdu
IPC分类号： H01M10/0525 , H01M10/0567
摘要： The present application provides a lithium ion battery, comprising an electrode assembly and an electrolyte comprising a fluorosulfonate and/or difluorophosphate substance. The lithium ion battery has a gas generation area coefficient during formation, defined as α, with α = M × S/200; wherein M is the loading of the negative electrode material per area of the negative electrode current collector and is in the range of 5 mg/cm 2 - 100 mg/cm 2 ; S is the specific surface area of the negative electrode material on the negative electrode current collector and is in the range of 0.1 m 2 /g - 10 m 2 /g; the lithium ion battery has a gas venting path coefficient defined as β, with β = 100/L, wherein L is the width of the area coated with the negative electrode material on the surface of the negative electrode current collector, and L is in the range of L ≥ 50 mm; the mass percentage content w% of the fluorosulfonate and/or difluorophosphate substance in the electrolyte and α and β meet the equation 0.01 ≤ w × β/α ≤ 20. The lithium ion battery of the present application can have both high energy density and low gas generation during formation.

6. 发明公开

EP4113685A1 BATTERY GROUP, BATTERY PACK, ELECTRIC APPARATUS, AND MANUFACTURING METHOD AND MANUFACTURING DEVICE FOR BATTERY GROUP 审中-实审
公开(公告)号：EP4113685A1
公开(公告)日：2023-01-04
申请号：EP21856897.0
申请日：2021-04-26
申请人： Contemporary Amperex Technology Co., Limited
发明人： LIU, Qian , YE, Yonghuang , LIANG, Chengdu , JIN, Haizu
IPC分类号： H01M10/0525 , H01M4/505 , H01M4/525 , H01M50/204 , H01M50/403 , H01M50/411 , H01M50/434 , H01M50/489 , H01M16/00 , H01M4/02 , H01M50/267
摘要： The present application relates to a battery module, comprising a first type of battery cells and a second type of battery cells electrically connected at least in series, wherein the first type of battery cells and the second type of battery cells are battery cells with different chemical systems, the first type of battery cells comprises N first battery cells, the second type of battery cells comprises M second battery cells, N and M are positive integers, the first battery cell comprises a first separator and a first electrolyte, the second battery cell comprises a second separator and a second electrolyte, a kinetic characteristic factor x1 of the first battery cell is: x1 = 1000×(ε1×r1)/(τ1×t1×θ1), a kinetic characteristic factor x2 of the second battery cell is: x2 = 1000×(ε2×r2)/(τ2×t2×θ2), and x1 and x2 satisfy: 0.01 ≤ x1/x2 ≤ 160.

7. 发明公开

EP4109602A1 POSITIVE ELECTRODE CURRENT COLLECTOR, AND POSITIVE ELECTRODE PLATE, BATTERY, BATTERY MODULE, BATTERY PACK AND APPARATUS COMPRISING SAME 审中-实审
公开(公告)号：EP4109602A1
公开(公告)日：2022-12-28
申请号：EP20950923.1
申请日：2020-08-31
申请人： Contemporary Amperex Technology Co., Limited
发明人： LIU, Xin , HUANG, Qisen , LI, Mingling , LIU, Xianghui , LI, Cheng , PENG, Jia , LIANG, Chengdu
IPC分类号： H01M4/66 , H01M10/05 , H01M4/13
摘要： The present application relates to a positive electrode current collector, and a positive electrode plate, a battery, a battery module, a battery pack and an apparatus comprising the positive electrode current collector. Specifically, the present application discloses a positive electrode current collector, comprising an organic support layer and an aluminum-based conductive layer provided on at least one surface of the organic support layer; the aluminum-based conductive layer contains aluminum (Al) and at least one modifier element selected from oxygen (O), nitrogen (N), fluorine (F), boron (B), sulfur (S), and phosphorus (P); and after a surface passivation layer is removed by etching, the aluminum-based conductive layer has, in an X-ray photoelectron spectroscopy (XPS) spectrum obtained from XPS, at least a first peak in the range from 70 eV to 73.5 eV and a second peak in the range from 73.5 eV to 78 eV, and the ratio x of the intensity of the second peak to the intensity of the first peak satisfies 0

8. 发明公开

EP4064437A1 BATTERY, APPARATUS USING SAME, AND MANUFACTURING METHOD AND DEVICE FOR BATTERY 审中-实审
公开(公告)号：EP4064437A1
公开(公告)日：2022-09-28
申请号：EP20961839.6
申请日：2020-11-17
申请人： Contemporary Amperex Technology Co., Limited
发明人： LIANG, Chengdu , XU, Xiaofu , YE, Yonghuang , JIN, Haizu , CHEN, Wenwei , LIU, Qian
IPC分类号： H01M50/375 , H01M50/209
摘要： Embodiments of this application provide a battery (1), an apparatus using a battery (1), and a preparation method and preparation device of battery. The battery (1) includes: a plurality of battery cells (10), where at least one of the battery cells (10) is provided with a pressure relief mechanism (14), and the pressure relief mechanism (14) is configured to actuate release of internal pressure of the battery cell (10) when the internal pressure or internal temperature of the battery cell (10) reaches a threshold; and a protective box (20), where the protective box (20) is configured to protect the plurality of battery cells (10), and the protective box (20) is provided with a guiding channel (40), where the guiding channel (40) is configured to guide emissions released from the pressure relief mechanism (14). The plurality of battery cells (10) include a first battery cell (101) and a second battery cell (102) that are arranged adjacently. The first battery cell (101) includes a pressure relief end at which the pressure relief mechanism (14) is provided, and the pressure relief end of the first battery cell (101) is staggered with one end of the second battery cell (102) that is close to the pressure relief end, in a direction leaving the guiding channel (40), so as to increase a volume of the guiding channel (40). The battery (1) provided in the embodiments of this application offers better safety performance.

9. 发明公开

EP4064421A1 BATTERY, DEVICE USING BATTERY, AND METHOD AND DEVICE FOR PREPARING BATTERY 审中-实审
公开(公告)号：EP4064421A1
公开(公告)日：2022-09-28
申请号：EP20961838.8
申请日：2020-11-17
申请人： Contemporary Amperex Technology Co., Limited
发明人： XU, Xiaofu , YE, Yonghuang , JIN, Haizu , LIANG, Chengdu , CHEN, Wenwei , LI, Quanguo
IPC分类号： H01M10/617 , H01M10/6554 , H01M10/6556
摘要： Embodiments of this application provide a battery (1), an apparatus using a battery (1), and a preparation method and a preparation device of a battery (1). The battery (1) includes a battery cell (10), where the battery cell (10) has a side wall (11) and a bottom wall (12) that are connected to each other; and a thermal management component (20), configured to accommodate fluid to regulate temperature of the battery cell (10), where an accommodating portion (21) is provided on the thermal management component (20), the accommodating portion (21) is configured to accommodate the battery cell (10), and the accommodating portion (21) is attached to the bottom wall (12) and side wall (11) of the battery cell (10), to implement heat transfer between the battery cell (10) and the thermal management component (20). The battery cell (10) in the battery (1) provided in the embodiments of this application can dissipate heat in time, so that the battery (1) is not easily damaged by heat.

10. 发明公开

EP4033579A1 LITHIUM ION BATTERY AND RELEVANT BATTERY MODULE, BATTERY PACK AND APPARATUS 有权
公开(公告)号：EP4033579A1
公开(公告)日：2022-07-27
申请号：EP22162937.1
申请日：2020-07-07
申请人： Contemporary Amperex Technology Co., Limited
发明人： LIANG, Chengdu , ZHANG, Cuiping , ZHANG, Ming , CHEN, Peipei , ZOU, Hailin , LI, Liye
IPC分类号： H01M10/056
摘要： The present application relates to an electrolytic solution including an organic solvent, a lithium salt and an additive, wherein the lithium salt comprises a primary lithium salt, the primary lithium salt is a first compound in an amount of 30% or more relative to the total molar amount of the lithium salt, and the first compound has a structure represented by the following formula I, and wherein the additive comprises a second compound represented by the following formula II. The present application further relates to a lithium ion battery comprising the electrolytic solution, especially those especially in the form of a high-nickel system.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式