Patents Assigned to Contemporary Amperex Technology Co., Limited
  • Publication number: 20240120608
    Abstract: Embodiments of the present application provide an end cap, a battery cell, a battery and a power consuming device, which relate to the technical field of batteries. The end cap may include a cap body and a groove. The cap body may have a first surface. The groove may be provided in the cap body to form a pressure relief zone in a region of the cap body where the groove is provided. The groove may be recessed from the first surface in a thickness direction of the cap body, and groove side faces of the groove may include corner faces at corners of the groove. Each corner face may be connected to the first surface via a first chamfer face.
    Type: Application
    Filed: July 25, 2023
    Publication date: April 11, 2024
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Wenlin ZHOU, Shengwang CHEN, Quankun LI, Peng WANG
  • Publication number: 20240120497
    Abstract: The present application relates to a current collector, an electrode plate, a battery cell, a battery, and an electric device. The current collector includes a stainless steel current-collecting portion for collecting a current, where the stainless steel current-collecting portion includes a blank area and a coating area that are arranged adjacent to each other in a preset direction, the coating area is configured to be coated with an active material, and the blank area has a hardness less than that of the coating area.
    Type: Application
    Filed: November 3, 2023
    Publication date: April 11, 2024
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Xin SUN, Huanji LIU, Xiao CHEN, Ziyi YIN, Haizu JIN
  • Publication number: 20240120614
    Abstract: The present application provides a separator for a secondary battery and a preparation method thereof, as well as a secondary battery and an electrical apparatus including the separator. The separator of the present application includes a porous substrate and a coating disposed on at least one surface of the porous substrate. The coating includes nanocellulose, the nanocellulose includes modifying groups, and the modifying groups include at least one of sulfonic acid groups, boric acid groups, and phosphoric acid groups.
    Type: Application
    Filed: October 16, 2023
    Publication date: April 11, 2024
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Ming XU, Jianrui YANG, Manxiang WEI
  • Patent number: 11955658
    Abstract: The present application provides a battery cell and a manufacturing method and manufacturing system, a battery, and a power consumption apparatus. The battery cell includes an electrode assembly, a housing, a pressure relief mechanism and a cover assembly. The housing is provided with an accommodating space for accommodating the electrode assembly, and the housing includes a first side plate located on a side in a first direction; the pressure relief mechanism is disposed on the first side plate; and the cover assembly is configured for sealing the housing, where an inner surface of the first side plate of the housing is provided with a first flow channel extending along the inner surface, and the first flow channel is configured to guide a gas in the accommodating space to the pressure relief mechanism so that the pressure relief mechanism is actuated when a pressure reaches a threshold, and relieve the pressure.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: April 9, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventor: Yuyong Lei
  • Patent number: 11955657
    Abstract: A battery, a powered device, and a method and device for preparing a battery are provided. In some embodiments, the battery includes: a first battery cell and a second battery cell, wherein a pressure relief mechanism of the first battery cell and a pressure relief mechanism of the second battery cell are arranged opposite to 5 each other in a first direction; a box body accommodating the first battery cell and the second battery cell; and a partition component configured to partition the first battery cell and the second battery cell in the first direction, wherein the partition component includes a first wall and a second wall arranged opposite to each other, the first wall is provided with a first through hole, the second wall is provided with a second through hole.
    Type: Grant
    Filed: September 25, 2022
    Date of Patent: April 9, 2024
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Yu Tang, Haiqi Yang, Zhimin Zeng, Peng Wang, Xiaoteng Huang
  • Patent number: 11955663
    Abstract: This application provides a battery module and an assembling method thereof. The battery module includes batteries and busbar components. The batteries are arranged consecutively along a longitudinal direction of the battery module. Each battery includes a first electrode terminal and a second electrode terminal. The busbar components are connected to the batteries. The batteries include a first battery and a second battery. The first electrode terminal of the first battery and the first electrode terminal of the second battery are arranged along the longitudinal direction. The busbar components include a first busbar component, and the first busbar component includes a first part, a second part, and a third part.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: April 9, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Changjin Wen, Ye Xu, Anwei Wu, Guofeng Liu, Xiaorong Liu, Bin Zhao
  • Patent number: 11955655
    Abstract: This application relates to the field of energy storage components, and in particular, to a protective plate, a battery unit assembly, a battery module group, and a vehicle. The protective plate is provided with a guide groove. The protective plate is configured to shield an explosion-proof valve of a battery cell. The guide groove is configured to be disposed corresponding to the explosion-proof valve, and is configured to guide a flow direction of a flame ejected from the explosion-proof valve. In this application, the guide groove is disposed on the protective plate to guide the flame to a direction away from passengers, thereby protecting the passengers from injury.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: April 9, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Xingdi Chen, Kaijie You, Haizu Jin, Linggang Zhou, Peng Wang, Dongyang Shi
  • Patent number: 11955653
    Abstract: Disclosed are a pallet configured to bear a battery cell. The pallet includes an external fixing rack and a plurality of supporting beams. A mounting space is formed inside the external fixing rack. The plurality of supporting beams are disposed in the mounting space. The plurality of supporting beams are arranged along a first direction. The plurality of supporting beams are connected to the external fixing rack separately. At least two of the supporting beams are spaced apart. The plurality of supporting beams are configured to bear the battery cell.
    Type: Grant
    Filed: August 12, 2023
    Date of Patent: April 9, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Jiayi Zhao, Fangyu Huang, Sheng Tang, Zhihui Wang, Sizhe Lai
  • Patent number: 11955633
    Abstract: This disclosure relates to the electrochemical field, and in particular, to a positive electrode material and a preparation method and usage thereof. The positive electrode material of this disclosure includes a substrate, where a general formula of the substrate is LixNiyCozMkMepOrAm, where 0.95?x?1.05, 0.5?y?1, 0?z?1, 0?k?1, 0?p?0.1, 1?r?5.2, 0?m?2, m+r?2, M is selected from one or more of Mn and Al, Me is selected from one or more of Zr, Zn, Cu, Cr, Mg, Fe, V, Ti, Sr, Sb, Y, W, and Nb, and A is selected from one or more of N, F, S, and Cl; and an oxygen defect level of the positive electrode material satisfies at least one of condition (1) or condition (2): (1) 1.77?OD1?1.90; or (2) 0.69?OD2?0.74.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: April 9, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chongheng Shen, Rui Du, Yongchao Liu, Deyu Zhao, Na Liu
  • Patent number: 11955654
    Abstract: The present application discloses a battery, and a related device, preparation apparatus thereof. The battery includes a battery cell, the battery cell including a pressure relief mechanism and at least two walls, the at least two walls including a first wall and a second wall that intersect with each other, the pressure relief mechanism being disposed at the first wall and being configured to, when an internal pressure or temperature of the battery cell reaches a threshold, be actuated to release the internal pressure; a thermal management component attached to the first wall and being configured to accommodate a fluid to cool the battery cell; and a support component attached to the second wall, and configured to support the battery cell; wherein the thermal management component is configured such that when the pressure relief mechanism is actuated, emissions discharged from the battery cell pass through the thermal management component.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: April 9, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Yuqun Zeng, Pengcheng Yao, Zhimin Zeng, Kai Wu, Xingdi Chen, Peng Wang, Xiaobo Chen
  • Patent number: 11952466
    Abstract: The present application relates to a binder compound of formula (I), a method for preparing the same, and an electrode sheet comprising the same. In formula (I), R1, R2, and R3 each independently represents an unsubstituted or substituted linear or branched alkyl with 1-6 carbon atoms, or an unsubstituted or substituted aryl with 6-20 carbon atoms; R4 represents —COOM; R5 represents a bridging oxo or bridging imino; each M independently represents one of Li, Na, K, Rb, and Cs; Z represents a linear or branched alkylene with 1-6 carbon atoms; m is an integer selected from 7,600 to 47,000; n is an integer selected from 1,520 to 94,000; and m/n=0.1-10.
    Type: Grant
    Filed: October 18, 2023
    Date of Patent: April 9, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Jianghui Lin, Yanjie Zhao, Xing Li, Haizu Jin
  • Patent number: 11955608
    Abstract: A lithium precipitation detection method may include: sending, when a battery management module in the battery pack determines that a change in a charging voltage of the battery pack meets a predetermined condition, a charging request containing a first current to a charging pile for charging, and controlling the battery pack to be charged with the first current for a first predetermined duration and a second predetermined duration, where the first predetermined duration is equal to the second predetermined duration; obtaining, by the battery management module, a first voltage change amount within the first predetermined duration and a second voltage change amount within the second predetermined duration; and determining, when the battery management module determines that a difference between the second voltage change amount and the first voltage change amount is greater than a predetermined voltage threshold, that lithium precipitation occurs in the battery pack.
    Type: Grant
    Filed: October 12, 2023
    Date of Patent: April 9, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Lan Xie, Zhen Lin, Guangyu Xu, Shuai Song
  • Publication number: 20240111661
    Abstract: An embodiment of this application provides a method and apparatus for testing control software, and a computer-readable storage medium to reduce the time consumed in the simulation-based debugging and enhance efficiency. The method may include obtaining test information of a plurality of fault signals; and injecting, based on the test information of the plurality of fault signals, the plurality of fault signals into a simulation environment in sequence to obtain test results of the plurality of fault signals handled by the control software, where the simulation environment may be a simulation environment of a control object of the control software.
    Type: Application
    Filed: August 14, 2023
    Publication date: April 4, 2024
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Bin LAN, Xuming WANG, Deqiang SHI, Chunguang YE, Runqi WU, Jianfeng GUO, Chang LIU, Dongfei ZHANG, Jianping BAI, Lang YANG, Xuan HE
  • Publication number: 20240113287
    Abstract: This application provides a lithium-ion battery, including: an electrode assembly and an electrolytic solution. The electrolytic solution may comprise a first lithium salt LixR1(SO2N)xSO2R2, wherein R1 and R2 each independently represent an alkyl with 1 to 20 fluorine atoms or carbon atoms, or a fluoroalkyl with 1 to 20 carbon atoms, or a fluoroalkoxyl with 1 to 20 carbon atoms, and x is an integer of 1, 2, or 3, and a second lithium salt, wherein the second lithium is at least one selected from LiPF6, LiAsF6, or LiBF4, wherein a thickness of the metallic conductive layer, ?1, is in a range of 0.52 ?m to 2.4 ?m, and a mass percentage of the first lithium salt, w, is 5% to 30% based on a total mass of the electrolytic solution.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 4, 2024
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Chang PENG, Peipei CHEN, Hailin ZOU, Liye LI
  • Publication number: 20240113389
    Abstract: The present application provides a separator and a preparation method thereof, a secondary battery, and a device. The separator includes a microporous layer; the microporous layer includes an alkali metal-containing polymer, the alkali metal-containing polymer includes a polymer chain, and the polymer chain includes a first group and a second group; (a) the first group is selected from an organic acid alkali metal group, an alcohol alkali metal group, or a combination thereof; (b) the second group is selected from an organic acid group; an alkali metal content in the first group is 50-100 ppm based on a total mass of the separator; and a hydrogen content in the second group is 10-50 ppm based on the total mass of the separator.
    Type: Application
    Filed: November 22, 2023
    Publication date: April 4, 2024
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Wenhan CHEN, Shaofei WANG
  • 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: 11944954
    Abstract: An organic-inorganic hybrid porous material. The organic-inorganic hybrid porous material contains a doping element A are provided. In some embodiments, the element A is one or more selected from: Li, Na, K, Rb, Cs, Sr, Zn, Mg, Ca, or any combination thereof. An external specific surface area of the organic-inorganic hybrid porous material is 1 to 100 m2/g. A ratio of the external specific surface area to a total specific surface area of the organic-inorganic hybrid porous material is 0.7 to 0.9.
    Type: Grant
    Filed: October 2, 2022
    Date of Patent: April 2, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Jiarui Tian, Yongsheng Guo, Cong Cheng, Xinxin Zhang, Na Liu, Chuying Ouyang
  • Patent number: 11946893
    Abstract: A method, an apparatus, an electronic device, and a storage medium for detecting water content in a battery are provided. The method comprises: obtaining a capacitance detection value of a battery to be tested by measurement; and determining a first water content value of the battery to be tested according to the capacitance detection value and a capacitance-water content relationship model. The capacitance-water content relationship model is obtained according to the relationship between sample batteries with different water content values and their sample capacitance values. By pre-constructing the relationship between the water content of the sample battery and the sample capacitance value and determining the water content of the battery to be tested according to the relationship and the capacitance value of the battery to be tested, the step of manually cutting the electrode sheet is reduced, and the efficiency of detecting the water content in the battery is improved.
    Type: Grant
    Filed: July 6, 2023
    Date of Patent: April 2, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Xinyong Tan, Zhaoyang Wu, Huihua Dong, Weihai Yang
  • Patent number: 11944995
    Abstract: Embodiments relate to a coating system. A substrate includes a first coating region and a second coating region adjacent to the first coating region. The coating system includes a first gravure mechanism and a second gravure mechanism, where the first gravure mechanism is configured to apply a first functional layer onto the first coating region, and the second gravure mechanism can receive the substrate having the first functional layer and apply a second functional layer made of a material different from that of the first functional layer onto the second coating region. In the coating system, with provision of first gravure mechanism and the second gravure mechanism, when the substrate is continuously transported in a same direction, the two functional layers made of different materials can be sequentially applied onto corresponding regions of the substrate.
    Type: Grant
    Filed: September 5, 2023
    Date of Patent: April 2, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Angong Peng, Zhenguang Tang, Hongwu Shang, Pengjun Yang, Yinxiang Lin
  • Patent number: 11948323
    Abstract: Embodiments of this application provide a measurement method and a measurement apparatus. The measurement method includes: acquiring a first image and a second image of a target object, where the first image is acquired by a camera located on a non-backlight side of the target object, and the second image is acquired by a camera located on a backlight side of target object; and measuring the target object for size information according to the first image and the second image. The technical solution of this application can improve accuracy and precision of inspection while improving production efficiency.
    Type: Grant
    Filed: April 5, 2023
    Date of Patent: April 2, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Weilin Zhuang, Guannan Jiang, Annan Shu