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公开(公告)号：US20200006754A1
公开(公告)日：2020-01-02
申请号：US16452541
申请日：2019-06-26
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Changliang SHENG , Huafeng HUANG , Qisen HUANG
IPC: H01M4/139 , H01M4/36 , H01M10/0585 , H01M10/0525
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 disposed on at least one surface of the negative current collector, the negative active material layer comprising opposite first surface and second surface, wherein the first surface is disposed away from the negative current collector; and an inorganic dielectric layer consisting of an inorganic dielectric material 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.
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公开(公告)号：US20190305319A1
公开(公告)日：2019-10-03
申请号：US16364751
申请日：2019-03-26
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Chengdu LIANG , Huafeng HUANG , Qisen HUANG , Xin LIU
Abstract: The present disclosure relates to the field of batteries and, specifically, to a current collector comprising a support layer, a conductive layer and a conductive material. The conductive layer is located on two surfaces of the support layer. A plurality of holes extending through the support layer and the conductive layer is provided in the current collector and is filled with the conductive material. The current collector of the present disclosure can improve the short circuit resistance of the battery using the current collector when a short circuit occurs under abnormal conditions, so that the short circuit current can be greatly reduced, and thus heat generated by the short circuit can be greatly reduced, thereby improving the safety performance of the battery.
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公开(公告)号：US20190173092A1
公开(公告)日：2019-06-06
申请号：US16209317
申请日：2018-12-04
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Chengdu LIANG , Huafeng HUANG , Qisen HUANG
IPC: H01M4/66 , H01M10/0525
Abstract: The present disclosure provides a current collector, an electrode plate, and a battery. The current collector includes an insulation layer, a conductive layer and at least one protective layer. The insulation layer is used to support the conductive layer. The conductive layer is used to support an electrode active material layer and located above at least one surface of the insulation layer. The conductive layer has a thickness of D2 satisfying 300 nm≤D2≤2 μm. The at least one protective layer is arranged on at least one surface of the conductive layer.
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公开(公告)号：US20190173090A1
公开(公告)日：2019-06-06
申请号：US16209459
申请日：2018-12-04
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Chengdu LIANG , Xin LIU , Zuyu WU , Qisen HUANG
IPC: H01M4/66 , H01M10/0525 , H01M4/75
Abstract: A current collector, an electrode plate, and an electrochemical device are provided in the present disclosure. The current collector includes an insulation layer and at least one conductive layer. The insulation layer is used to support the conductive layer. The at least one conductive layer is used to support an electrode active material layer and is located above at least one surface of the insulation layer. The insulation layer has a density smaller than that of the conductive layer. A metal protective layer is arranged on at least one surface of each of the at least one conductive layer.
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35.发明公开公开(公告)号：US20240141532A1
公开(公告)日：2024-05-02
申请号：US18540081
申请日：2023-12-14
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jia PENG , Mingling LI , Xin LIU , Qisen HUANG
Abstract: A negative electrode composite current collector including a copper plating solution is described. The copper plating solution includes a leveling agent represented by a general formula (1)
where an anion X is F−, Cl−, or Br−;
R1, R2, and R3 are each independently selected from O or S; and
R4, R5, and R6 are each independently selected from hydrogen, a substituted or unsubstituted alkyl, a substituted or unsubstituted vinyl, a substituted or unsubstituted aryl, and a substituted or unsubstituted heteroaryl.-
Patent Agency Ranking
36.发明公开公开(公告)号：US20240017999A1
公开(公告)日：2024-01-18
申请号：US18364732
申请日：2023-08-03
Inventor： Sicong CHENG , Qisen HUANG
IPC: C01B21/086 , C07C209/86 , C07C68/08 , C07C17/392 , B01D17/02 , B01D3/14 , B01D5/00 , B01D17/04
CPC classification number: C01B21/086 , C07C209/86 , C07C68/08 , C07C17/392 , B01D17/0217 , B01D3/148 , B01D5/006 , B01D17/045
Abstract: A method for recovering raw and auxiliary materials in the production of lithium bis(fluorosulfonyl)imide is described. The method includes one or more different recovery sections A, B, C, D and/or E, corresponding to the recovery and post-treatment of the raw and auxiliary materials such as triethylamine, a fluoride ion, an ester solvent, and a crystallization liquid respectively used in the production of lithium bis(fluorosulfonyl)imide. The method for recovering raw and auxiliary materials of the present application enables the production of lithium bis(fluorosulfonyl)imide to have significantly improved economic efficiency and environmental protection.
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37.发明公开公开(公告)号：US20230395796A1
公开(公告)日：2023-12-07
申请号：US18325996
申请日：2023-05-30
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qi WU , Qiang CHEN , Yuxiang ZHAO , Jingpeng FAN , Qisen HUANG
IPC: H01M4/525 , H01M10/0525 , H01M4/36 , H01M4/04 , H01M4/505
CPC classification number: H01M4/525 , H01M10/0525 , H01M4/366 , H01M4/0471 , H01M4/505 , H01M2220/20 , H01M2004/028
Abstract: A modified high-nickel ternary positive electrode material includes an inner core and inner and outer coating layers. The inner core includes a high-nickel ternary positive electrode material matrix, the matrix being doped with M1, M2, and W. M1 is one of Mo, Zr, Ti, Sb, Nb, and Te. M2 is one of Mg, Al, Ca, Zn, and Sr. Chemical formula of the high-nickel ternary positive electrode material matrix is Li1+a[NixCoyMnzM1bM2cWd]O2. 0.65≤x
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38.发明公开公开(公告)号：US20230387467A1
公开(公告)日：2023-11-30
申请号：US18231255
申请日：2023-08-08
Inventor： Sicong CHENG , Qisen HUANG
IPC: H01M10/0568
CPC classification number: H01M10/0568
Abstract: The present application provides a method for preparing lithium bis(fluorosulfonyl)imide, which may include the following steps: (a) a synthesis step; (b) an evaporation step; (c) an extraction step; (d) an alkalinization step; (e) a dehydration step; (f) a desolventization step; (g) a crystallization step; and (h) a drying step; lithium bis(fluorosulfonyl)imide prepared by the method, an electrolytic solution containing the lithium bis(fluorosulfonyl)imide, and a secondary battery thereof.
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公开(公告)号：US20230361386A1
公开(公告)日：2023-11-09
申请号：US18345515
申请日：2023-06-30
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Meng QIN , Qisen HUANG
IPC: H01M10/6568 , H01M10/6569 , H01M10/613 , H01M10/48
CPC classification number: H01M10/6568 , H01M10/6569 , H01M10/613 , H01M10/486 , H01M10/488 , H01M2220/20
Abstract: A battery pack and an electrical device including the same are described. The battery pack includes a battery cell at least partially immersed in a refrigerant; a case for accommodating the battery cell and the refrigerant and provided with an outlet and an inlet for the refrigerant; a circulating pipeline located outside the case, connecting the outlet and the inlet for the refrigerant to form a closed system; a heat exchanger and a condenser located on the circulating pipeline; a pressure measuring module provided with one end arranged inside the case and configured for detecting an internal pressure of the case; a temperature monitoring device for detecting a temperature of the battery cell and a fluorine-containing cooling medium in real time; and a battery control module for managing the battery cell; where the refrigerant includes at least a first fluorine-containing cooling medium and a second fluorine-containing cooling medium.
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公开(公告)号：US20230112962A1
公开(公告)日：2023-04-13
申请号：US17984276
申请日：2022-11-10
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jia PENG , Mingling LI , Xin LIU , Qisen HUANG
Abstract: The present disclosure relates to a composite positive electrode current collector. On a surface of an insulation layer, a protective layer, a graphene metallization layer and a conductive layer may be arranged in sequence; and the protective layer may comprise a metal oxide, and the graphene metallization layer may contain highly reduced graphene oxide having an oxygen-containing organic group.
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