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1.发明授权公开(公告)号：US12132217B2
公开(公告)日：2024-10-29
申请号：US17970603
申请日：2022-10-21
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Chengdu Liang , Quanguo Li , Yonghuang Ye , Qian Liu , Haizu Jin , Wei Li
CPC classification number: H01M50/204 , H01M4/525 , H01M4/5825 , H01M4/583 , H01M10/0404 , H01M2004/021 , H01M2004/027 , H01M2004/028
Abstract: The present application discloses a battery module, a battery pack, an apparatus, and a method and device for manufacturing a battery module. The battery module includes n first-type battery cells and m second-type battery cells, n≥1, m≥1, and the n first-type battery cells and them second-type battery cells are arranged and satisfy: VED1>VED2, ΔF1>ΔF2, and (ΔF1×n+ΔF2×m)/(n+m)≤0.8×ΔF1, where VED1, VED2, ΔF1 and ΔF2 are respectively defined in the description.
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公开(公告)号：US12107227B2
公开(公告)日：2024-10-01
申请号：US17196797
申请日：2021-03-09
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Chengdu Liang , Chenghua Fu , Peipei Chen , Junmin Feng
IPC: H01M10/0569 , H01M10/0525 , H01M10/0567 , H01M10/42 , H01M4/02 , H01M4/505 , H01M4/525
CPC classification number: H01M10/0569 , H01M10/0525 , H01M10/0567 , H01M10/4235 , H01M2004/028 , H01M4/505 , H01M4/525 , H01M2300/0037 , H01M2300/004
Abstract: This application provides a nonaqueous electrolyte, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous electrolyte includes a nonaqueous solvent, a lithium salt, and an additive. The nonaqueous solvent includes a carbonate solvent and a high oxidation potential solvent, and the additive is a fluorinated cyclic carbonate. The carbonate solvent is a linear carbonate, or a mixture of linear carbonate and cyclic carbonate, the high oxidation potential solvent is selected from one or more of compounds represented by formula I and formula II, and the fluorinated cyclic carbonate is selected from compounds represented by formula III. 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.
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3.发明公开公开(公告)号：US20240213451A1
公开(公告)日：2024-06-27
申请号：US18596640
申请日：2024-03-06
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yingjie Guan , Yongchao Liu , Qisen Huang , Na Liu , Chengdu Liang
CPC classification number: H01M4/364 , H01M4/0471 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/621 , H01M2004/021
Abstract: This application relates to an electrode active composition, a preparation method thereof, an electrode, a battery, and an apparatus. The electrode active composition includes: a first component, the first component being lithium cobalt oxide particles; and a second component, the second component being ternary material particles. The first component includes lithium cobalt oxide particles with a particle size greater than 11 μm and lithium cobalt oxide particles with a particle size less than 6 μm, and a ratio in number of the lithium cobalt oxide particles with a particle size greater than 11 μm to the lithium cobalt oxide particles with a particle size less than 6 μm is 0.2-4.8, and in some embodiments, 0.2-2.8.
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公开(公告)号：US12002984B2
公开(公告)日：2024-06-04
申请号：US17985813
申请日：2022-11-11
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Quanguo Li , Yonghuang Ye , Chengdu Liang , Haizu Jin , Qian Liu , Xia Hu
IPC: H01M10/48 , H01M10/613 , H01M50/342 , H01M50/375
CPC classification number: H01M50/3425 , H01M10/486 , H01M10/613 , H01M50/375 , H01M2220/20
Abstract: This application relates to the field of energy storage technologies, and provides a battery, an apparatus, a preparation method of battery, and a preparation apparatus of battery. The battery includes a first battery cell and a second battery cell. The first battery cell includes a first pressure relief mechanism, the second battery cell includes a second pressure relief mechanism, an energy density of the first battery cell is greater than an energy density of the second battery cell, and an area of the first pressure relief mechanism is greater than an area of the second pressure relief mechanism. The apparatus includes the foregoing battery.
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5.发明授权公开(公告)号：US12002947B2
公开(公告)日：2024-06-04
申请号：US18109812
申请日：2023-02-14
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yingjie Guan , Yongchao Liu , Qisen Huang , Na Liu , Chengdu Liang
CPC classification number: H01M4/364 , H01M4/0471 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/621 , H01M2004/021
Abstract: This application relates to an electrode active composition, a preparation method thereof, an electrode, a battery, and an apparatus. The electrode active composition includes: a first component, the first component being lithium cobalt oxide particles; and a second component, the second component being ternary material particles. The first component includes lithium cobalt oxide particles with a particle size greater than 11 μm and lithium cobalt oxide particles with a particle size less than 6 μm, and a ratio in number of the lithium cobalt oxide particles with a particle size greater than 11 μm to the lithium cobalt oxide particles with a particle size less than 6 μm is 0.2-4.8, and in some embodiments, 0.2-2.8. A summed number of the lithium cobalt oxide particles with a particle size greater than 11 μm and the lithium cobalt oxide particles with a particle size less than 6 μm accounts for above 90% of a total number of particles in the first component.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11949073B2
公开(公告)日：2024-04-02
申请号：US17132591
申请日：2020-12-23
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Peipei Chen , Chenghua Fu , Junmin Feng , Chengdu Liang
IPC: H01M10/00 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M50/40 , H01M4/02
CPC classification number: H01M10/0569 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0568 , H01M50/40 , H01M2004/027 , H01M2004/028 , H01M2220/20 , H01M2300/004
Abstract: This application provides a nonaqueous electrolytic solution, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous electrolytic solution includes a nonaqueous solvent and a lithium salt. The nonaqueous solvent includes a carbonate solvent and a high-oxidation-potential solvent. The carbonate solvent is a mixture of a cyclic carbonate and a chain carbonate, and the high-oxidation-potential solvent is selected from one or more of compounds denoted by Formula I and Formula II. This application improves electrochemical performance of the lithium-ion battery under a high temperature and a high voltage as well as safety performance such as overcharge safety and hot-oven safety of the lithium-ion battery, and also ensures kinetic performance of the lithium-ion battery to some extent.
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公开(公告)号：US11929509B2
公开(公告)日：2024-03-12
申请号：US17561748
申请日：2021-12-24
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Chengdu Liang , Yongsheng Guo , Tao Zhang , Chengyong Liu , Jun Yang
IPC: H01M4/62 , B22F1/145 , H01M4/38 , H01M10/0525
CPC classification number: H01M4/626 , B22F1/145 , H01M4/382 , H01M10/0525 , B22F2301/054 , H01M2220/20
Abstract: Disclosed are a lithium metal composite electrode material for a lithium metal battery, a preparation method for the same, and an electrode, battery, battery module, battery pack and apparatus comprising the same. The lithium metal composite electrode material comprises: lithium metal particles and a lithium-containing conductive layer serving as a supporting framework, the supporting framework being filled with the lithium metal particles; wherein the lithium-containing conductive layer comprises an inorganic lithium compound and a lithium alloy. The lithium metal composite electrode material can solve the problems that, when lithium metal is used as a negative electrode, the electrolyte is easily consumed, and lithium dendrites are easily produced, deposited and dissolved to change electrode thickness, which in turn affects the cycle stability, electrical performance and structural stability of the battery, so as to achieve the purpose of improving the structural stability and cycle stability of the lithium metal electrode.
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公开(公告)号：US11901511B2
公开(公告)日：2024-02-13
申请号：US17189084
申请日：2021-03-01
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Peipei Chen , Chengdu Liang , Chenghua Fu , Junmin Feng
IPC: H01M10/0569 , H01M10/0567 , H01M10/0525
CPC classification number: H01M10/0569 , H01M10/0525 , H01M10/0567 , H01M2220/20 , H01M2300/0037
Abstract: This application provides a nonaqueous electrolyte, a lithium-ion battery, a battery module, a battery pack, and an apparatus. The nonaqueous electrolyte includes a nonaqueous solvent, a lithium salt, and an additive, where the nonaqueous solvent includes a carbonate solvent and a high oxidation potential solvent, and the additive includes cyclic sulfate. The high oxidation potential solvent is selected from one or more of compounds represented by formula I and formula II, and the cyclic sulfate may be selected from one or more of compounds represented by formula III. 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.
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公开(公告)号：US11888115B2
公开(公告)日：2024-01-30
申请号：US17550946
申请日：2021-12-14
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Chengyong Liu , Yongsheng Guo , Chengdu Liang , Quan Fan
IPC: H01M10/0567 , H01M10/052 , H01M10/0569 , H01M4/38 , H01M4/134 , H01M4/40 , H01M4/525
CPC classification number: H01M10/0567 , H01M4/134 , H01M4/382 , H01M10/052 , H01M10/0569 , H01M4/405 , H01M4/525 , H01M2300/0025
Abstract: This application provides an electrolytic solution and a lithium metal battery containing the electrolytic solution. The electrolytic solution includes a lithium salt, an organic solvent, and an additive. The additive includes a sultam compound represented by Structural Formula I. R is selected from substituted or unsubstituted C1 to C10 hydrocarbyls, where a substituent is selected from a phenyl, C1 to C6 alkyls, or C1 to C6 alkenyls. X is a sulfur atom or a phosphorus atom. R1 and R2 each are independently selected from an oxygen atom, a fluorine atom, a chlorine atom, a bromine atom, and substituted or unsubstituted C1 to C10 hydrocarbyls. Both R1 and R2 are not oxygen atoms concurrently.
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10.发明申请公开(公告)号：US20230119054A1
公开(公告)日：2023-04-20
申请号：US18051519
申请日：2022-11-01
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Chengdu Liang , Yingjie Guan , Yuzhen Zhao , Yan Wen , Qisen Huang
Abstract: The present application provide a silicon-oxygen compound, a secondary battery using it, and related battery modules, battery packs, and devices. The silicon-oxygen compound provided by the present application has a formula of SiOx, in which x satisfies 0
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