-
公开(公告)号：US20240274836A1
公开(公告)日：2024-08-15
申请号：US18626100
申请日：2024-04-03
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Mingling LI , Xin LIU , Qisen HUANG , Xianghui LIU , Cheng LI
Abstract: A composite current collector includes a first metal layer, a second metal layer, and a first binding layer. The first metal layer includes a first body zone and a first tab zone. The first tab zone is located at an end of the first metal layer. The second metal layer includes a second body zone and a second tab zone. The second tab zone is located at an end of the second metal layer. The first body zone and the second body zone are connected through the first binding layer. The first tab zone has a thickness greater than thickness of the first body zone. The first tab zone extends toward the second tab zone.
-
公开(公告)号：US20240190715A1
公开(公告)日：2024-06-13
申请号：US18409940
申请日：2024-01-11
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xin LIU , Qisen HUANG , Cheng LI , Mingling LI , Xianghui LIU
CPC classification number: C01D15/02 , H01M4/525 , H01M4/625 , C01P2004/03 , C01P2004/61 , C01P2004/84 , C01P2006/40 , H01M2004/028
Abstract: A positive lithium supplement material includes a core, an inorganic coating layer coated on at least part of a surface of the core, and an organic coating layer coated on at least part of a surface of the inorganic coating layer away from the core. The core includes LixMyOz, and the M element includes at least one of Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, or Zn, where 2≤x≤6, 1≤y≤2, 2≤z≤4, and the core is electrically neutral.
-
3.发明公开公开(公告)号：US20240063393A1
公开(公告)日：2024-02-22
申请号：US18498969
申请日：2023-10-31
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Cheng LI , Huihui LIU
CPC classification number: H01M4/622 , H01M4/136 , H01M4/5825 , H01M4/667 , H01M4/668 , H01M4/663 , H01M2004/028
Abstract: A positive electrode plate, a secondary battery, a battery module, a battery pack and a power consuming device are described. The positive electrode plate comprises a current collector, a primer coating layer provided on at least one surface of the current collector, and a positive electrode film provided on the primer coating layer, wherein the primer coating layer contains a polymer A soluble in an aqueous solvent, and the polymer A comprises a structural unit derived from a monomer containing a cyano group, a structural unit derived from a monomer containing an amide group, and a structure unit derived from a monomer containing an ester group. The polymer A is used in the primer coating layer of the positive electrode plate, which increases the molding quality, adhesive force and flexibility of the positive electrode plate, and optimizes the cycling performance of the battery.
-
公开(公告)号：US20200006775A1
公开(公告)日：2020-01-02
申请号：US16452542
申请日：2019-06-26
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Cheng LI , Changliang SHENG , Huafeng HUANG , Qisen HUANG
Abstract: The invention refers to negative electrode plate, preparation method thereof and electrochemical device. The negative electrode plate comprises: a negative current collector, a negative active material layer, and an inorganic dielectric layer which are provided in a stacked manner; the negative active material layer comprises opposite first surface and second surface, wherein the first surface is disposed away from the negative current collector; the inorganic dielectric layer is disposed on the first surface of the negative active material layer and consists of an inorganic dielectric material. The negative electrode plate provided by the application is useful in an electrochemical device, and can result in an electrochemical device having simultaneously excellent safety performance and cycle performance.
-
公开(公告)号：US20240379964A1
公开(公告)日：2024-11-14
申请号：US18783374
申请日：2024-07-24
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Cheng LI , Zipeng ZENG , Huihui LIU , Jingming WANG
Abstract: This application provides a binder composition. The binder composition includes a first fluoropolymer and a second fluoropolymer, where the first fluoropolymer includes polyvinylidene fluoride with a weight-average molecular weight of 5000000-9000000, and a weight-average molecular weight of the second fluoropolymer is not greater than 600000. Featuring good processability, this binder composition, even added in small amounts, can provide electrode plates with great adhesion force and improve the cycling performance of a battery.
-
Patent Agency Ranking
6.发明公开公开(公告)号：US20240356036A1
公开(公告)日：2024-10-24
申请号：US18746957
申请日：2024-06-18
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Cheng LI , Zipeng ZENG , Huihui LIU , Jingming WANG
CPC classification number: H01M4/623 , H01M4/366 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/625 , H01M10/052 , H01M2004/028
Abstract: This application provides a binder composition. The binder composition includes a first fluoropolymer and a second fluoropolymer, where the first fluoropolymer includes polyvinylidene fluoride with a weight-average molecular weight of 1,500,000-5,000,000, and a weight-average molecular weight of the second fluoropolymer does not exceed 600,000. The binder composition has good processability, achieves high adhesion force for the electrode plate when added in small amounts, and improves the cycling performance of the battery.
-
公开(公告)号：US20200006756A1
公开(公告)日：2020-01-02
申请号：US16452543
申请日：2019-06-26
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Huafeng HUANG , Changliang SHENG , Cheng LI , Qisen HUANG
IPC: H01M4/1393 , H01M10/0525 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/1391 , H01M4/64
Abstract: The invention refers to negative electrode plate, preparation method thereof and electrochemical device. The negative electrode plate comprises: a negative current collector, a negative active material layer, and an inorganic dielectric layer which are provided in a stacked manner; the negative active material layer comprises opposite first surface and second surface, wherein the first surface is disposed away from the negative current collector; the inorganic dielectric layer is disposed on the first surface of the negative active material layer. The negative electrode plate provided by the application is useful in an electrochemical device, and can result in an electrochemical device having simultaneously excellent safety performance and cycle performance.
-
公开(公告)号：US20240113288A1
公开(公告)日：2024-04-04
申请号：US18523929
申请日：2023-11-30
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Cheng LI , Qisen HUANG , Xin LIU , Changliang SHENG , Shiwen WANG , Xianghui LIU , Jia PENG , Mingling LI , Chengdu LIANG
CPC classification number: H01M4/382 , H01M4/0404 , H01M4/0421 , H01M4/583 , H01M4/663 , H01M4/667 , H01M4/668 , H01M2004/027
Abstract: This application relates to a negative electrode plate, a secondary battery and apparatus thereof. The secondary battery of the present application comprises a negative electrode plate, the negative electrode plate comprises a composite current collector and a negative electrode active material layer disposed on at least one surface of the composite current collector, the negative electrode active material layer comprises a silicon-based active material, the silicon-based active material accounts for 0.5 wt % to 50 wt % of total mass of the negative electrode active material layer, and the composite current collector comprises a polymer support layer and a metal conductive layer disposed on at least one surface of the polymer support layer. The secondary battery and the negative electrode plate achieve good coordination between the current collector and the negative electrode active material layer.
-
9.发明公开公开(公告)号：US20230187655A1
公开(公告)日：2023-06-15
申请号：US18069586
申请日：2022-12-21
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Mingling LI , Jia PENG , Xin LIU , Qisen HUANG , Keqiang LI , Cheng LI , Xianghui LIU
CPC classification number: H01M4/667 , H01M4/82 , H01M4/661 , H01M4/668 , H01M2004/021
Abstract: A composite current collector includes a support layer and a conductive layer. The support layer has two surfaces opposite to each other along a thickness direction. The conductive layer is provided on the two surfaces and includes a first portion and a second portion. The first portion includes a first sub-portion and a second sub-portion provided on the two surfaces, respectively. The second portion includes a third sub-portion and a fourth sub-portion. The third sub-portion and the first sub-portion are integrally provided. The fourth sub-portion and the second sub-portion are integrally provided. The third sub-portion and the fourth sub-portion both project from the support layer. The third sub-portion and the fourth sub-portion are affixed to each other and fused as a whole.
-
公开(公告)号：US20230071180A1
公开(公告)日：2023-03-09
申请号：US17964074
申请日：2022-10-12
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Cheng LI , Changliang SHENG , Huafeng HUANG , Qisen Huang
Abstract: The invention refers to negative electrode plate, preparation method thereof and electrochemical device. The negative electrode plate comprises: a negative current collector, a negative active material layer, and an inorganic dielectric layer which are provided in a stacked manner; the negative active material layer comprises opposite first surface and second surface, wherein the first surface is disposed away from the negative current collector; the inorganic dielectric layer is disposed on the first surface of the negative active material layer and consists of an inorganic dielectric material. The negative electrode plate provided by the application is useful in an electrochemical device, and can result in an electrochemical device having simultaneously excellent safety performance and cycle performance.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.016 seconds)
