Patents by Inventor Chengdu Liang

Chengdu Liang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240186491
    Abstract: The present invention relates to an electrode active material, a preparation method thereof, an electrode, a battery, and an apparatus. The electrode active material includes: a core and a coating layer, where the core includes a ternary material, the coating layer coats the core, the coating layer includes a reaction product of a sulfur-containing compound and a lithium-containing compound, and the reaction product includes element Li, element S, and element O.
    Type: Application
    Filed: January 28, 2024
    Publication date: June 6, 2024
    Inventors: Chengdu Liang, Yongchao Liu, Na Liu, Yingjie Guan, Qisen Huang, Wei Fu
  • Patent number: 12002984
    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.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: June 4, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Quanguo Li, Yonghuang Ye, Chengdu Liang, Haizu Jin, Qian Liu, Xia Hu
  • Patent number: 12002947
    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 ?m and lithium cobalt oxide particles with a particle size less than 6 ?m, and a ratio in number of the lithium cobalt oxide particles with a particle size greater than 11 ?m to the lithium cobalt oxide particles with a particle size less than 6 ?m 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 ?m and the lithium cobalt oxide particles with a particle size less than 6 ?m accounts for above 90% of a total number of particles in the first component.
    Type: Grant
    Filed: February 14, 2023
    Date of Patent: June 4, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Yingjie Guan, Yongchao Liu, Qisen Huang, Na Liu, Chengdu Liang
  • Patent number: 11996580
    Abstract: A battery, a power consumption device, and a method and device for producing a battery are provided. The battery includes: a battery cell including a pressure relief mechanism configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; and a fire-fighting pipeline configured to accommodate a fire-fighting medium and discharge the fire-fighting medium when the pressure relief mechanism is actuated; where the fire-fighting pipeline is covered with an isolation layer, and the isolation layer is configured to block the contact of gases and the fire-fighting pipeline so as not to generate condensate. In a battery provided by the present application the fire-fighting pipeline is covered with an isolation layer, and the isolation layer may be configured to reduce the influence of the condensate on the battery and improving the safety of the battery.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: May 28, 2024
    Assignee: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
    Inventors: Chengdu Liang, Jiarong Hong, Haiqi Yang, Xiaoteng Huang, Wenli Wang, Langchao Hu, Cheng Xue
  • Patent number: 11996548
    Abstract: The present application discloses a negative active material, preparation process thereof and a secondary battery and the related battery module, battery pack and device. The negative active material comprises a core structure and a modified polymer coating layer coated on at least a part of the outer surface of the core structure, wherein the core structure comprises one or more of silicon-based materials and tin based materials; and wherein the negative active material has an infrared spectrum comprising an infrared absorption peak at the wavelength of 1450 cm?1 to 1690 cm?1, and the infrared absorption peak has a transmittance T that satisfies 80%?T?99%.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: May 28, 2024
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu Liang, Yuzhen Zhao, Yingjie Guan, Yan Wen, Qisen Huang
  • Patent number: 11990592
    Abstract: Embodiments of this application provide a battery, an apparatus using a battery, and a manufacturing method and a manufacturing device of battery. The battery includes a battery cell and a thermal management component. The battery cell has a side wall and a bottom wall that are connected to each other. The thermal management component is configured to accommodate fluid to regulate temperature of the battery cell, where an accommodating portion is provided on the thermal management component, and configured to accommodate the battery cell, and the accommodating portion is attached to the bottom wall and side wall of the battery cell, to enable heat transfer between the battery cell and the thermal management component. The battery cell in the battery provided in the embodiments of this application can dissipate heat efficiently.
    Type: Grant
    Filed: November 12, 2022
    Date of Patent: May 21, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Xiaofu Xu, Yonghuang Ye, Haizu Jin, Chengdu Liang, Wenwei Chen, Quanguo Li
  • Patent number: 11978844
    Abstract: An electrode assembly and a related battery, and battery module are provided, wherein the electrode assembly includes: at least one positive electrode plate and at least one negative electrode plate, the number of all the positive and negative electrode plates is greater than or equal to 3; the positive and negative electrode plates are wound around the winding axis and arranged in a superimposing manner along a direction vertical to the winding axis, each positive electrode plate includes a positive main body part, at least part of the positive main body part is a positive active substance area, each negative electrode plate includes a negative main body part, at least part of the negative main body part is the negative active substance area, two ends of the negative active substance area along the winding axis both exceed corresponding ends of the adjacent positive active substance area.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: May 7, 2024
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu Liang, Hu Xu, Haizu Jin, Yuqun Zeng
  • Patent number: 11973215
    Abstract: The present application discloses a negative active material, preparation process thereof and a secondary battery and the related battery module, battery pack and device. The negative active material comprises a core material and a modified polymer coating layer coated on at least a part of the outer surface of the core material, the core material comprises one or more of silicon-based materials and tin based materials, the coating layer comprises carbon element and nitrogen element, wherein the nitrogen element is present in the negative active material in a mass percentage of 0.1%˜0.66%, and the coating layer comprises a —C?N-linkage.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: April 30, 2024
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu Liang, Yingjie Guan, Yuzhen Zhao, Yan Wen, Qisen Huang
  • Patent number: 11961969
    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 is 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.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: April 16, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chengdu Liang, Chenghua Fu, Peipei Chen, Junmin Feng
  • Publication number: 20240113288
    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.
    Type: Application
    Filed: November 30, 2023
    Publication date: April 4, 2024
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Cheng LI, Qisen HUANG, Xin LIU, Changliang SHENG, Shiwen WANG, Xianghui LIU, Jia PENG, Mingling LI, Chengdu LIANG
  • Patent number: 11949073
    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.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: April 2, 2024
    Assignee: CONTEMPORATY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Peipei Chen, Chenghua Fu, Junmin Feng, Chengdu Liang
  • Patent number: 11949099
    Abstract: The present invention relates to an electrode active material, a preparation method thereof, an electrode, a battery, and an apparatus. The electrode active material includes: a core and a coating layer, where the core includes a ternary material, the coating layer coats the core, the coating layer includes a reaction product of a sulfur-containing compound and a lithium-containing compound, and the reaction product includes element Li, element S, and element O.
    Type: Grant
    Filed: February 10, 2023
    Date of Patent: April 2, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chengdu Liang, Yongchao Liu, Na Liu, Yingjie Guan, Qisen Huang, Wei Fu
  • Patent number: 11929509
    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.
    Type: Grant
    Filed: December 24, 2021
    Date of Patent: March 12, 2024
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chengdu Liang, Yongsheng Guo, Tao Zhang, Chengyong Liu, Jun Yang
  • Patent number: 11909000
    Abstract: A lithium-ion secondary battery is provided, where an electrolyte solution of the lithium-ion secondary battery comprises a highly heat-stable salt (My+)x/yR1(SO2N?)xSO2R2, where the My+ is a metal ion, R1 and R2 are each independently a fluorine atom, an alkyl with 1-20 carbon atoms, a fluoroalkyl with 1-20 carbon atoms, or a fluoroalkoxy with 1-20 carton atoms, x is 1, 2, or 3, and y is 1, 2, or 3. A mass percent of the salt in the electrolyte solution is set as k2%; a temperature rise coefficient k1 of the positive electrode sheet satisfies 2.5?k1?32, where k1=Cw/Mc, Cw is a positive electrode material load per unit area (mg/cm2) on the surface of any side of the positive electrode current collector on which a positive electrode material layer is loaded, and Mc is a carbon content (%) of the positive electrode material layer; and the lithium-ion secondary battery satisfies 0.34?k2/k1?8.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: February 20, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chang Peng, Peipei Chen, Hailin Zou, Chengdu Liang
  • Patent number: 11901511
    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.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: February 13, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Peipei Chen, Chengdu Liang, Chenghua Fu, Junmin Feng
  • Patent number: 11901555
    Abstract: A battery module, a battery pack, and an electric apparatus are provided. In some embodiments, the battery module includes a first type of cell and a second type of cell that are cells of different chemical systems, where the first type of cell includes n first cells, the second type of cell includes m second cells, n and m each are selected from an integer greater than 1, at least one of the first cells and at least one of the second cells are electrically connected in series, and the first cell and the second cell satisfy at least the following relationships: 0.08??RB/?RA?3.50, and 0.10 m?/100 cycles??RA?0.40 m?/100 cycles, where ?RA is a discharge resistance growth rate of the first cell, and ?RB is a discharge resistance growth rate of the second cell; and IMPB<IMPA, where IMPA is an alternating current impedance of the first cell, and IMPB is an alternating current impedance of the second cell.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: February 13, 2024
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Quanguo Li, Yonghuang Ye, Chengdu Liang, Haizu Jin, Qian Liu, Fajun Huang, Xiaofu Xu
  • Patent number: 11894583
    Abstract: A box body includes a carrying plate configured to carry a battery and a one-way gravity valve disposed at the carrying plate. The one-way gravity valve is configured to be closed in response to a gravity of liquid in the box body being less than a threshold, and to be open in response to the gravity of the liquid in the box body reaching the threshold.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: February 6, 2024
    Assignee: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
    Inventors: Chengdu Liang, Jiarong Hong, Xiaoteng Huang, Wenli Wang, Haiqi Yang, Langchao Hu, Chenyi Xu
  • Patent number: 11894573
    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.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: February 6, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Quanguo Li, Yonghuang Ye, Chengdu Liang, Haizu Jin, Qian Liu, Xia Hu
  • Patent number: 11888115
    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.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: January 30, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chengyong Liu, Yongsheng Guo, Chengdu Liang, Quan Fan
  • Patent number: 11888177
    Abstract: Embodiments of the present application provide a battery, a power consumption device, and a method and device for producing a battery. The battery includes: a battery cell, the battery cell including a pressure relief mechanism configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; a fire-fighting pipeline configured to accommodate a fire-fighting medium and discharge the fire-fighting medium toward the battery cell when the pressure relief mechanism is actuated; and an accommodating part configured to accommodate the fire-fighting medium discharged from the fire-fighting pipeline to lower a temperature of the battery cell. According to technical solutions of the embodiments of the present application, the safety of the battery could be enhanced.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: January 30, 2024
    Assignee: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
    Inventors: Chengdu Liang, Langchao Hu, Xiaoteng Huang, Jiarong Hong, Haiqi Yang, Wenli Wang