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公开(公告)号：US20210111410A1
公开(公告)日：2021-04-15
申请号：US17132506
申请日：2020-12-23
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yaping HUANG , Mingkui GUO , Yaohui WANG , Yongshou LIN , Fenggang ZHAO
IPC: H01M4/66 , H01M4/36 , H01M4/133 , H01M4/134 , H01M10/0525
Abstract: The present application relates to the electrochemical field, and in particular, to a negative electrode plate and a secondary battery including the electrode plate. The present application provides a negative electrode plate. The negative electrode plate includes a negative electrode current collector, a first negative electrode active substance layer disposed on at least one surface of the negative electrode current collector, and a second negative electrode active substance layer disposed on the first negative electrode active substance layer. The first negative electrode active substance layer includes a first negative electrode active substance, and the second negative electrode active substance layer includes a second negative electrode active substance. The first negative electrode active substance satisfies 1 GPa≤Young's modulus≤10 GPa, and the second negative electrode active substance satisfies 11 GPa≤Young's modulus≤30 GPa.
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公开(公告)号：US20170352846A1
公开(公告)日：2017-12-07
申请号：US15349938
申请日：2016-11-11
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Quankun LI , Jian GUO , Peng WANG , Pinghua DENG , Kai WU , Yongshou LIN
IPC: H01M2/04 , H01M2/34 , H01M10/0525
CPC classification number: H01M2/0473 , H01M2/043 , H01M2/345 , H01M10/0525 , H01M2200/20 , H01M2220/20
Abstract: The present application provides a top cover of a power battery, including a top cover plate, a first electrode unit and a second electrode unit, the top cover plate is provided with a deformable plate connecting hole and an insulation piece accommodating portion, the first electrode unit includes a deformable plate, a conductive plate and a first insulation piece, the deformable plate seals the deformable plate connecting hole, the conductive plate is located underneath the deformable plate, the first insulation piece includes a top cover plate connecting portion and a conductive plate connecting portion, the top cover plate connecting portion extends into the insulation piece accommodating portion and is fixed thereof, the conductive plate is insulated and fixed with the top cover plate through the conductive plate connecting portion. The present application further provides a power battery, including the top cover of the power battery.
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公开(公告)号：US20220204355A1
公开(公告)日：2022-06-30
申请号：US17655092
申请日：2022-03-16
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yongshou LIN , Guobao WANG , Ke WANG , Jiang LIU , Bin YAO
Abstract: A method for producing a lithium iron phosphate precursor by using a retired lithium iron phosphate battery as a raw material is provided, which includes steps of: soaking a battery cell in acid, performing electrolysis to reclaim copper, oxidizing ferrous iron, precipitating iron phosphate, and precipitating lithium carbonate. After precipitation is completed, performing one-step reclaim to obtain the lithium iron phosphate precursor.
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公开(公告)号：US20220013853A1
公开(公告)日：2022-01-13
申请号：US17113038
申请日：2020-12-05
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yuqun ZENG , Xiaobo CHEN , Peng WANG , Yao LI , Yongshou LIN
IPC: H01M50/342 , H01M10/613 , H01M10/625 , H01M10/6554 , H01M50/204
Abstract: Embodiments of the present application provide a battery. The battery includes: a battery cell comprising a pressure relief mechanism, the pressure relief mechanism being arranged in a first wall of the battery cell and the pressure relief mechanism being configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated to release the internal pressure; and a thermal management component for containing a fluid to adjust the temperature of the battery cell; wherein a first surface of the thermal management component is attached to the first wall, and the thermal management component is configured to be capable of being damaged when the pressure relief mechanism is actuated, so that the fluid is discharged from inside of the thermal management component. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.
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公开(公告)号：US20220013757A1
公开(公告)日：2022-01-13
申请号：US17113034
申请日：2020-12-05
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Kai WU , Wei WANG , Yuepan HOU , Peng WANG , Xiaobo CHEN , Yao LI , Yongshou LIN
IPC: H01M2/12 , H01M10/6567 , H01M10/6554 , H01M2/10
Abstract: Embodiments of the present application provide a battery, a power consumption device, a method and device for preparing a battery. The battery includes: a battery cell including a pressure relief mechanism, the pressure relief mechanism being disposed at a first wall of the battery cell; and a thermal management component configured to accommodate a fluid to adjust a temperature of the battery cell; where a first surface of the thermal management component is attached to the first wall of the battery cell, the thermal management component is configured to be capable of being damaged by emissions discharged from the battery cell when the pressure relief mechanism is actuated, such that the emissions pass through the thermal management component. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.
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Patent Agency Ranking
公开(公告)号：US20230223666A1
公开(公告)日：2023-07-13
申请号：US18118753
申请日：2023-03-08
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Yuqun ZENG , Yongshou LIN , Zhenhua LI , Haizu JIN , Xiaowen ZHANG
IPC: H01M50/581 , H01M4/62 , H01G11/68 , H01M4/66 , H01G11/14 , H01M10/0525 , H01G11/70 , H01M4/02
CPC classification number: H01M50/581 , H01M4/628 , H01G11/68 , H01M4/667 , H01G11/14 , H01M10/0525 , H01G11/70 , H01M2004/028 , H01M2200/106
Abstract: The present invention relates to a positive electrode plate and an electrochemical device. The positive electrode plate comprises a current collector, a positive active material layer and a safety coating disposed between the current collector and the positive active material layer, and wherein the safety coating comprises a polymer matrix, a conductive material and an inorganic filler and wherein when the safety coating and the positive active material layer are collectively referred as a film layer, the film layer has an elongation of 30% or more and wherein the polymer matrix of the safety coating is fluorinated polyolefin and/or chlorinated polyolefin having a crosslinked structure. The positive electrode plate may improve the safety performance during nail penetration of the electrochemical device such as capacitor, primary battery or secondary battery and the like.
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公开(公告)号：US20220158197A1
公开(公告)日：2022-05-19
申请号：US17665953
申请日：2022-02-07
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Hu XU , Miaomiao REN , Yongshou LIN , Long XU , Youlei LAI , Haizu JIN , Lingbo ZHU
IPC: H01M4/66
Abstract: An electrode assembly and a battery cell is disclosed. The electrode assembly includes a first electrode plate and a second electrode plate. The first electrode plate includes a first current collector and a first active material layer, the first current collector includes a first main body and a first tab, and the first tab extends from one end of the first main body in a longitudinal direction. The second electrode plate includes a second current collector and a second active material layer, the second current collector includes a second main body and a second tab, the second tab extends from one end of the second main body in the longitudinal direction, and the second active material layer is applied on a surface of the second main body.
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公开(公告)号：US20220069284A1
公开(公告)日：2022-03-03
申请号：US17416026
申请日：2019-02-26
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Longfei YANG , Guobao WANG , Xiaomei LIU , Jiang LIU , Yongshou LIN , Fenggang ZHAO
Abstract: An electrode assembly and a lithium-ion battery are described. The electrode assembly includes a positive electrode plate, a separator, and a negative electrode plate, where the negative electrode plate includes a negative electrode current collector and a negative electrode active substance layer, the negative electrode plate further includes a lithium metal layer, the lithium metal layer is formed by a plurality of regular or irregular strip-shaped lithium-rich regions, and the plurality of lithium-rich regions present a discontinuous pattern of spaced distribution in a length direction of the negative electrode plate. The electrode assembly further satisfies that: negative electrode capacity per unit area/positive electrode capacity per unit area=1.2 to 2.1 and negative electrode capacity per unit area/(positive electrode capacity per unit area+capacity of the lithium metal layer on the surface of the negative electrode active substance layer per unit area×80%)≥1.10.
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19.发明申请公开(公告)号：US20220013755A1
公开(公告)日：2022-01-13
申请号：US17113025
申请日：2020-12-05
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Xiaobo CHEN , Fenggang ZHAO , Yao LI , Peng WANG , Zhanyu SUN , Yongshou LIN
IPC: H01M2/10 , H01M2/20 , H01M2/12 , H01M10/613 , H01M10/625 , H01M10/6554
Abstract: Embodiments of the present application provide a case of a battery, a battery, a power consumption device, and a method and device for preparing a battery. The case includes: an electrical chamber configured to accommodate a plurality of battery cells and a bus component, where at least one battery cell of the plurality of battery cells includes a pressure relief mechanism; a thermal management component configured to accommodate a fluid to adjust temperatures of the plurality of battery cells; and a collection chamber configured to collect, when the pressure relief mechanism is actuated, emissions from the battery cell provided with the pressure relief mechanism; where the thermal management component is configured to isolate the electrical chamber from the collection chamber. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.
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公开(公告)号：US20210119292A1
公开(公告)日：2021-04-22
申请号：US17137172
申请日：2020-12-29
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Haizu JIN , Fei HU , Zhenhua LI , Dongyang SHI , Rui YANG , Yuqun ZENG , Yongshou LIN
IPC: H01M50/20 , H01M50/15 , H01M50/147
Abstract: The present disclosure provides a battery module and a battery pack. The battery pack comprises a box and a battery module, the battery module is accommodated in the box. The battery module comprises batteries sequentially arranged in a first direction. The battery comprises an electrode assembly, a case and a cap assembly, the electrode assembly is received in the case, and the cap assembly is connected with the case. The case comprises two first side walls, and the two first side walls are respectively positioned at two sides of the electrode assembly in the first direction. The first side walls of two adjacent batteries face each other. An area of the first side wall is defined as S1, a distance between the electrode assemblies of two adjacent batteries in the first direction is defined as D, S1 and D satisfying a relationship: 1.2×10−5 mm−1≤D/S1≤500×10−5 mm−1.
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