Patents by Inventor Huihui Liu

Huihui Liu 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: 20240194882
    Abstract: The present application provides a conductive binder, the conductive binder is formed by reacting polyimide with a conductive agent, and the conductive binder comprises a structural unit represented by formula I containing trifluoromethyl, wherein, R1 and R2 are each independently selected from substituted C6-C25 aromatic groups. For the conductive binder, in the case of a low content of conductive agent and a low amount of conductive binder added, it can greatly reduce the membrane resistance, improve the adhesion of the electrode plate and the cycling capacity retention rate of the battery, and reduce the internal resistance increase rate of the battery in the cycling process.
    Type: Application
    Filed: January 12, 2024
    Publication date: June 13, 2024
    Inventors: Cheng Li, Zipeng Zeng, Huihui Liu
  • Publication number: 20240124699
    Abstract: Provided are a binder composition, an electrode, a battery and a power consuming device. The binder composition comprises a fluoropolymer A and a copolymer B, wherein the copolymer B comprises a structural unit derived from a monomer containing a cyano group and a structural unit derived from a monomer containing an ester group. The binder of the present application has a strong bonding force, and the cycling performance of the secondary battery comprising same is excellent.
    Type: Application
    Filed: November 21, 2023
    Publication date: April 18, 2024
    Inventors: Lianwei Duan, Huihui Liu, Cheng Li, Wei Feng
  • Publication number: 20240076531
    Abstract: A primer adhesive for a dry electrode includes following components in parts by mass: 30-70 parts of a modified polyolefin resin and 10-60 parts of a conductive material, where the modified polyolefin resin is a copolymer formed by polymerization of maleic anhydride, polyolefin, and a petroleum resin.
    Type: Application
    Filed: October 27, 2023
    Publication date: March 7, 2024
    Inventors: Liya ZHAO, Huihui LIU, Long WANG
  • Publication number: 20240063393
    Abstract: A positive electrode plate, a secondary battery, a battery module, a battery pack and a power consuming device are described. The positive electrode plate comprises a current collector, a primer coating layer provided on at least one surface of the current collector, and a positive electrode film provided on the primer coating layer, wherein the primer coating layer contains a polymer A soluble in an aqueous solvent, and the polymer A comprises a structural unit derived from a monomer containing a cyano group, a structural unit derived from a monomer containing an amide group, and a structure unit derived from a monomer containing an ester group. The polymer A is used in the primer coating layer of the positive electrode plate, which increases the molding quality, adhesive force and flexibility of the positive electrode plate, and optimizes the cycling performance of the battery.
    Type: Application
    Filed: October 31, 2023
    Publication date: February 22, 2024
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Cheng LI, Huihui LIU
  • Patent number: 11888150
    Abstract: A positive electrode plate includes a positive electrode current collector, a positive electrode film layer arranged on at least one surface of the positive electrode current collector, and a conductive undercoat layer positioned between the positive electrode current collector and the positive electrode film layer. The positive electrode film layer includes a positive electrode active material including an inner core and a shell coating the inner core. The shell includes a first coating layer coating the inner core, a second coating layer coating the first coating layer, and a third coating layer coating the second coating layer. The conductive undercoat layer includes a polymer, an aqueous binder, and a conductive agent.
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: January 30, 2024
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Huihui Liu, Lingyun Feng, Yanhuang Fan, Lianwei Duan
  • Publication number: 20240030451
    Abstract: A modified binder includes a conductive carbon nanotube and a first grafting agent located on the conductive carbon nanotube. The first grafting agent includes a copolymer of acrylic-based monomer unit-acrylamide-based monomer unit and/or a copolymer of acrylic-based monomer unit-acrylonitrile-based monomer unit-acrylamide-based monomer unit.
    Type: Application
    Filed: October 3, 2023
    Publication date: January 25, 2024
    Inventors: Wenmeng ZHANG, Huihui LIU, Xinghui WANG, Shuhua CHEN
  • Publication number: 20230420750
    Abstract: Provided are an electrode assembly, a battery cell, a battery, and a power consuming device. The electrode assembly includes: a cathode electrode plate, an anode electrode plate, and a separator, the separator being configured to isolate the cathode electrode plate from the anode electrode plate; and an electrolyte adsorption layer configured to be arranged along a surface of at least one of the cathode electrode plate, the anode electrode plate and the separator, wherein the electrolyte adsorption layer is provided with ion exchange channels, which are through holes provided in a thickness direction of the electrolyte adsorption layer. According to the technical solution described above, the electrolyte adsorption layer, which is arranged on the surface of at least one of the cathode electrode plate, the anode electrode plate and the separator, can adsorb and retain an electrolyte.
    Type: Application
    Filed: September 7, 2023
    Publication date: December 28, 2023
    Inventors: Yuqun Zeng, Shengwu Zhang, Minghao Tang, Wenfa Lin, Huihui Liu, Jie Ye
  • Publication number: 20230420677
    Abstract: The present application provides a positive electrode plate, a secondary battery and a power consuming device. The positive electrode plate may comprise a positive electrode current collector, a positive electrode film layer provided on at least one surface of the positive electrode current collector, and a conductive undercoat layer between the positive electrode current collector and the positive electrode film layer, wherein the positive electrode film layer may include a positive electrode film layer comprising a positive electrode active material with a core-shell structure, the positive electrode active material may comprise an inner core and a shell coating the inner core, and the conductive primer layer may comprise a first polymer, a first water-based binder and a first conductive agent.
    Type: Application
    Filed: July 17, 2023
    Publication date: December 28, 2023
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Huihui LIU, Lingyun FENG, Yanhuang FAN, Wenmeng ZHANG
  • Publication number: 20230420680
    Abstract: The present application provides a binder and a preparation method therefor, a secondary battery, a battery module, a battery pack and a power consuming device.
    Type: Application
    Filed: September 7, 2023
    Publication date: December 28, 2023
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Lianwei DUAN, Huihui LIU
  • Publication number: 20230407287
    Abstract: The disclosure discloses a method for preparing a multisubunit SCF E3 ligase with a fusion protein through in vitro reconstitution, and a use of the multisubunit SCF E3 ligase. The method for preparing a multisubunit SCF E3 ligase with a fusion protein through in vitro reconstitution disclosed by the disclsoure includes: subjecting an engineered SKP1-Cullin1-RBX1 fusion protein (referred to as eSCR) to a reaction with an F-box protein in a reaction system to obtain the multisubunit SCF E3 ligase, where the eSCR fusion protein has an amino acid sequence from position 10 to position 1062 of SEQ ID NO: 2. Experimental results show that different multisubunit SCF E3 ligases are successfully prepared with the eSCR fusion protein through in vitro reconstitution in the disclsoure; the reconstituted multisubunit E3 ligase has biological activity.
    Type: Application
    Filed: May 25, 2023
    Publication date: December 21, 2023
    Applicant: Institute of Genetics and Developmental Biology, CAS
    Inventors: Jiayang LI, Bing WANG, Huihui LIU, Hong YU, Xiangbing MENG, Guifu LIU, Mingjiang CHEN, Yanhui JING
  • Publication number: 20230361273
    Abstract: A positive electrode plate includes a positive electrode current collector, a positive electrode film layer arranged on at least one surface of the positive electrode current collector, and a conductive undercoat layer positioned between the positive electrode current collector and the positive electrode film layer. The positive electrode film layer includes a positive electrode active material including an inner core and a shell coating the inner core. The shell includes a first coating layer coating the inner core, a second coating layer coating the first coating layer, and a third coating layer coating the second coating layer. The conductive undercoat layer includes a polymer, an aqueous binder, and a conductive agent.
    Type: Application
    Filed: July 18, 2023
    Publication date: November 9, 2023
    Inventors: Huihui LIU, Lingyun FENG, Yanhuang FAN, Lianwei DUAN
  • Publication number: 20230361272
    Abstract: A positive electrode plate includes a positive electrode current collector, a positive electrode film layer provided on at least one surface of the positive electrode current collector, and a conductive undercoat layer between the positive electrode current collector and the positive electrode film layer. The positive electrode film layer includes a positive electrode active material having a chemical formula of LiaAxMn1-yByP1-zCzO4-nDn, and the conductive primer layer includes a first polymer, a first water-based binder and a first conductive agent.
    Type: Application
    Filed: July 18, 2023
    Publication date: November 9, 2023
    Inventors: Lingyun FENG, Huihui LIU, Yanhuang FAN, Wei FENG
  • Publication number: 20220384817
    Abstract: A lithium-ion battery and an apparatus containing the same are provided. In some embodiments, the lithium-ion battery includes: a positive electrode plate including a positive electrode current collector and a positive electrode active substance layer; and an electrolyte including a non-aqueous organic solvent. A low-swelling adhesive layer and an oily adhesive layer are sequentially arranged between the positive electrode current collector and the positive electrode active substance layer; the low-swelling adhesive layer includes a low-swelling binder, and the oily adhesive layer includes a first binder, where a solubility parameter SP1 of the low-swelling binder is less than a solubility parameter SP2 of the first binder.
    Type: Application
    Filed: July 26, 2022
    Publication date: December 1, 2022
    Inventors: Jingyu Cao, Huihui Liu, Shisong Li, Lin Ma
  • Publication number: 20220246992
    Abstract: An embodiment of the present application provide an electrode assembly, a battery cell, a battery, and an electrode assembly manufacturing equipment and method. Among that, the electrode assembly includes a negative electrode plate and a positive electrode plate which form a bending region. The positive electrode plate includes bending portions located in the bending region, the bending portion includes a positive electrode current collecting layer and a positive active substance layer, and at least one side surface of the positive electrode current collecting layer is provided with the positive active substance layer in a thickness direction of the positive electrode plate. At least one positive active substance layer is provided with the barrier layer, at least a part of the barrier layer is intercalated in the positive active substance layer provided with the barrier layer, and coats at least a part of particles in the positive active substance layer.
    Type: Application
    Filed: December 29, 2021
    Publication date: August 4, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Kai WU, Huihui LIU, Zhonghong LI, Long WANG, Tuo ZHENG, Huan CHE
  • Publication number: 20220123444
    Abstract: This application provides an electrode assembly and a battery cell. The battery cell includes an electrode assembly, a housing, and a first electrode terminal. The housing includes an accommodation cavity. The electrode assembly is accommodated in the accommodation cavity, and the first electrode terminal is disposed in the housing. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator. The separator separates the first electrode plate from the second electrode plate. The first electrode plate includes a first current collector, a first active material layer, and an insulation layer. The first current collector includes a first body portion and a first tab extending from the first body portion.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 21, 2022
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Huihui LIU, Hui GU, Jingyu CAO, Lin MA
  • Patent number: 11211610
    Abstract: The present application relates to a positive electrode plate and an electrochemical device. The positive electrode plate includes a current collector, a positive active material layer, and a binding layer disposed between the current collector and the positive active material layer, the binding layer comprising a polymer material, a conductive material, and an inorganic filler, wherein the polymer material comprises a binding layer matrix and the binding layer matrix is an oil-dispersible polymer material having a solubility in NMP at 130° C. for 5 minutes, which is 30% or less of the solubility of PVDF under the same conditions. The positive electrode plate can improve the safety performance of the electrochemical device (for example, a capacitor, a primary battery, a secondary battery, or the like) under abnormal conditions such as nailing penetration.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: December 28, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Wei Li, Haihao Shi, Huihui Liu, Chao Jin, Jianbao Xu, Shisong Li, Chao Guo
  • Publication number: 20210340510
    Abstract: The present invention relates to the field of genetic engineering, particularly to a fumonisin degrading enzyme FumDPS, gene and application thereof. The present invention provides a fumonisin degrading enzyme FumDPS from Pigmentiphaga sp. which has the amino acid sequence of SEQ ID NO: 1, has the optimum temperature of 37° C., and the optimum pH of 8 to 9, remains more than 60% of the activity in the range of pH 3 to 7, and has 100% of degradation rate of fumonisin B1 at the optimum temperature and pH.
    Type: Application
    Filed: September 29, 2019
    Publication date: November 4, 2021
    Inventors: Zhongyuan LI, Tongcun ZHANG, Junqi ZHAO, Huihui LIU
  • Patent number: 11050053
    Abstract: The present invention relates to a battery, comprising a positive electrode plate, a separator and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active materials on at least one surface of the positive electrode current collector in which the underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material, and a first conductive material and in which the upper positive active material layer comprises a second positive active material, a second polymer material, and a second conductive material and the first polymer material comprises an oil-dispersible polymer material having a solubility in NMP at 130° C. for 5 minutes, which is 30% or less of the solubility of PVDF under the same conditions. The battery exhibits good safety performance and improved electrical performance.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: June 29, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Wei Li, Haihao Shi, Huihui Liu, Chao Jin, Tianyi Gao, Jianbao Xu, Shisong Li, Chao Guo
  • Patent number: 10858551
    Abstract: A bonding agent includes: structural units represented by Formula I, Formula II, Formula III, and Formula IV: where each of R1, R2, R3, and R4 is independently selected from the group consisting of hydrogen, and C1-8 straight-chain or branched alkyl groups substituted or not substituted by a substituting group, each of R5, R6, and R7 is independently selected from the group consisting of hydrogen, and C1-6 straight-chain or branched alkyl groups substituted or not substituted by a substituting group, R8 is selected from C1-15 alkyl groups substituted or not substituted by a substituting group, each of R9, R10, and R11 is independently selected from the group consisting of hydrogen, and C1-6 straight-chain or branched alkyl groups substituted or not substituted by a substituting group.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: December 8, 2020
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Ze Zhong, Chengdong Sun, Huihui Liu, Xinghui Wang, Zengbin Wei
  • Patent number: 10818961
    Abstract: The present disclosure provides an anode electrode slurry suspending agent, an anode electrode plate and an energy storage device, the anode electrode slurry suspending agent has a structural formula composed of a main chain containing carbon and a side chain, the side chain comprises a first side chain R1 and a second side chain R2; the first side chain R1 contains —R11—CONH2, the second side chain R2 contains —(C?O)OR21 or —O(C?O)R22, the anode electrode slurry suspending agent can significantly improve coating speed of the anode electrode slurry and can ensure that there is no drying-cracking phenomenon of the anode electrode film at the same time, thereby improving productivity and quality rate of coating process of the anode electrode plate and in turn significantly improving production capacity of the energy storage device.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: October 27, 2020
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Huihui Liu, Jirong Li, Chao Guo, Jialong Wu, Kang Wang