Patents by Inventor Jianming Zheng

Jianming Zheng 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).

  • Patent number: 11918169
    Abstract: A handheld vacuum cleaner includes a frame, and a dust barrel and a locking portion mounted on the frame, wherein a front end of the dust barrel and the locking portion are movable relative to each other and are arranged opposite to each other; the dust barrel has a rotatable front cover at a front side thereof; and when the locking portion and the dust barrel move with respect to each other, the front cover is automatically rotatable to open, or close on the front side of the dust barrel due to limit by the locking portion.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: March 5, 2024
    Assignee: NINGBO FUJIA INDUSTRIAL CO., LTD.
    Inventors: Jianqiang Fang, Jianming Zheng, Wenxian Wu
  • Publication number: 20240021878
    Abstract: An electrolyte and an electrochemical apparatus containing the electrolyte. The electrolyte includes a fluorine-containing sulfonimide lithium salt and a trinitrile compound, where based on a weight of the electrolyte, a percentage of the fluorine-containing sulfonimide lithium salt is X %, and a percentage of the trinitrile compound is Y %, where 1?X+Y?6. The electrolyte in this application can significantly improve safety performance of lithium-ion batteries.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 18, 2024
    Applicant: Ningde Amperex Technology Limited
    Inventors: Jianyu LIU, Wenqiang LI, Jianming ZHENG
  • Patent number: 11830981
    Abstract: An electrolyte, including: a compound of Formula I, and at least one of a compound of Formula II or a compound of Formula III, R1, R2, R3 and R4 are each independently selected from hydrogen, fluoro, substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C2-C10 alkenyl, substituted or unsubstituted C2-C10 alkynyl, substituted or unsubstituted C6-C12 aryl, substituted or unsubstituted C1-C10 alkoxy, or substituted or unsubstituted C6-C12 aryloxy, wherein when substituted, the substituent is fluoro, cyano or C1-C10 alkyl; and a, d and f are each independently selected from an integer from 1 to 5, and b, c, e, g, h and i are each independently selected from an integer from 0 to 5.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: November 28, 2023
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Chao Tang, Jianming Zheng
  • Publication number: 20230361349
    Abstract: An electrolyte includes an organic solvent, a lithium salt and additives, in particular, the additives include a fluoroethylene carbonate and a P—N bond-containing compound, the P—N bond-containing compound having a structure shown in formula I; A mass percentage of the fluoroethylene carbonate in the electrolyte is a %, a mass percentage of the P—N bond-containing compound in the electrolyte is b %, and 0.1?a/b?200.
    Type: Application
    Filed: May 11, 2023
    Publication date: November 9, 2023
    Applicant: Ningde Amperex Technology Limited
    Inventors: Yali XIONG, Mingming GUAN, Rong WANG, Jianming ZHENG
  • Publication number: 20230275269
    Abstract: An electrolyte, including an additive A, wherein the additive A comprises a non-fluorinated lithium borate compound; and at least one additive selected from an additive B, an additive C, an additive D, or an additive E, wherein the additive B comprises at least one of vinylene carbonate, fluoroethylene carbonate, lithium tetrafluoroborate, lithium difluoro(oxalato)borate, or lithium difluorophosphate; the additive C comprises a compound comprising S?O; the additive D comprises a compound having 2 to 4 cyano groups; and the additive E comprises a silicon-containing carbonate compound. This application provides an electrolyte and an electrochemical apparatus. The electrolyte includes additives such as a non-fluorinated lithium borate compound, thereby effectively improving high-temperature storage performance, cycle performance, floating charge performance and/or overcharge performance of the electrochemical apparatus.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 31, 2023
    Inventors: Chunrui Xu, Yanyan Xu, Jianming Zheng, Chao Tang
  • Patent number: 11742518
    Abstract: An electrolyte includes at least one of a compound of Formula I, a compound of Formula II or a compound of Formula III; and a compound of Formula IV; where, R11, R12, R13, R21, R22, R31, R32, R33 and R34 are independently selected from H, halo, cyano, substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C2-C10 alkenyl, and substituted or unsubstituted C6-C12 aryl; R41 and R44 are independently selected from H, F, cyano, substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C2-C10 alkenyl, substituted or unsubstituted C6-C12 aryl, Ra—(O—Rb), or (O—Rb); and R42 and R43 are independently selected from Rc—(O—Rd) or (O—Rd). Rb is selected from substituted or unsubstituted C1-C4 alkyl; Ra, Rc and Rd are independently selected from substituted or unsubstituted C1-C4 alkylene, C2-C5 alkenylene, or C6-C12 aryl.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: August 29, 2023
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Hui Cui, Shuirong Zhang, Chao Tang, Jianming Zheng
  • Publication number: 20230261263
    Abstract: An electrolytic solution, including at least one of compounds represented by Formula (I-A). In Formula (I-A), n is an integer selected from 0 to 6; A1, A2, and A3 each are a structural formula represented by Formula (I-B) or Formula (I-C). In Formula (I-A), a number of —CN functional groups is 5 to 10, and a number of is greater than or equal to 1. The electrolytic solution is applicable to an electrochemical device, so that the electrochemical device can maintain good high-temperature storage performance, cycle performance, floating charge performance, and overcharge performance while achieving a relatively high energy density.
    Type: Application
    Filed: March 30, 2023
    Publication date: August 17, 2023
    Applicant: Dongguan Amperex Technology Limited
    Inventors: Xiexue Peng, Jianming Zheng, Chao Tang
  • Patent number: 11721838
    Abstract: An electrolyte including an additive of compound of formula I, wherein n is an integer ranging from 0 to 10; R1 and R2 are each independently selected from a substituted or unsubstituted C1-C10 alkylidene group, a substituted or unsubstituted C2-C10 alkenylene group, or a substituted or unsubstituted C1-C10 alkyleneoxy group; A1 selected from CH, C, N, S, O, B or Si; A2 is selected from CH—R3, N—R3, S, O, B—R3 or SiH—R3; A3 selected from CH2, CH, C, N, S, O, B or Si; R3 is selected from hydrogen, halogen, a substituted or unsubstituted C1-C10 alkyl group, or a substituted or unsubstituted C3-C10 cycloalkyl group; X1 is selected from a substituted or unsubstituted C1-C10 alkylidene group, a substituted or unsubstituted C2-C10 alkenylene group, ?Rc?, or ?Rc—, wherein Rc is selected from a substituted or unsubstituted C2-C6 alkylidene group.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: August 8, 2023
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Jian Liu, Wenqiang Li, Jianming Zheng, Xiexue Peng
  • Publication number: 20230246156
    Abstract: An electrochemical apparatus, where the electrochemical apparatus includes electrodes, where the electrode includes a current collector, an active material layer disposed on at least one surface of the current collector, a tab disposed on the current collector, and a tab protection layer disposed on the tab, where the tab protection layer includes a first polymer layer, the first polymer layer has a melting point of TA° C., and 110?TA?136.5; and an electrolyte, where the electrolyte includes ethylene carbonate and propylene carbonate; based on a weight of the electrolyte, a sum of weight percentages of the ethylene carbonate and the propylene carbonate is Y %, and Y is 20-80; and Y and TA satisfy 0.147<Y/TA<0.7. The electrochemical apparatus of this application has improved hotbox performance and high-temperature storage performance.
    Type: Application
    Filed: March 31, 2023
    Publication date: August 3, 2023
    Applicant: Ningde Amperex Technology Limited
    Inventors: Jianyu LIU, Wenqiang LI, Jianming ZHENG, Shuai XU
  • Publication number: 20230198096
    Abstract: The present application relates to an electrochemical device comprising a separator and an electrolyte, wherein the separator comprises a first porous layer and a second porous layer; and the electrolyte comprises at least one compound containing 2 to 3 cyano groups.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 22, 2023
    Inventors: Xiexue PENG, Jianming ZHENG, Chao TANG, Haiyang NAN
  • Publication number: 20230187695
    Abstract: An electrolyte including a compound R11 is a covalent bond, a substituted or unsubstituted C1-C20 alkylidene group, a substituted or unsubstituted C2-C20 alkenylene group, a substituted or unsubstituted C2-C20 alkynylene group, a substituted or unsubstituted C6-C20 arylene group, a substituted or unsubstituted C3-C20 heteroarylene group, a substituted or unsubstituted C3-C20 cycloalkylene group, or a combination thereof. R12, R13, and R14 are a substituted or unsubstituted C1-C20 alkylidene group, C2-C20 alkenylene group, C2-C20 alkynylene group, C6-C20 arylene group, C3-C20 heteroarylene group, or C3-C20 cycloalkylene group; or a combination thereof. R15 and R16 are a C1-C20 alkylidene group, a substituted or unsubstituted C2-C20 alkenylene group, a substituted or unsubstituted C2-C20 alkynylene group, a substituted or unsubstituted C6-C20 arylene group, a substituted or unsubstituted C3-C20 heteroarylene group, or a substituted or unsubstituted C3-C20 cycloalkylene group.
    Type: Application
    Filed: May 22, 2020
    Publication date: June 15, 2023
    Inventors: Xiexue Peng, Jianming Zheng, Wenqiang Li, Hui Chen
  • Publication number: 20230178807
    Abstract: An electrolyte, including a compound of formula I and lithium difluorophosphate, where X is selected from a substituted or unsubstituted C1-10 alkyl group, a substituted or unsubstituted C2-10 alkenyl group, a substituted or unsubstituted C1-5 alkyl sulfonyl group, and a substituted or unsubstituted C2-5 acyl group. In the case of substitution, a substituent is selected from a cyano group and halogen. This application further relates to an electrochemical apparatus and an electronic apparatus that include the electrolyte.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 8, 2023
    Applicant: Ningde Amperex Technology Limited
    Inventors: Jianyu Liu, Mingming Guan, Jianming Zheng, Jian Liu
  • Publication number: 20230155173
    Abstract: An electrolyte including an imidazolium salt compound and a pyridine compound. The electrolyte, includes a compound of Formula I and a compound of Formula II: where R1 is selected from halo, cyano, substituted or unsubstituted C1-C12 alkyl, substituted or unsubstituted C2-C12 alkenyl, substituted or unsubstituted C2-C12 alkynyl, substituted or unsubstituted C2-C12 alkoxy, substituted or unsubstituted C3-C12 cycloalkyl, and substituted or unsubstituted C6-C12 aryl; and R11, R12, R13, R14 and R15 are each independently selected from H, halo, cyano, substituted or unsubstituted C1-C12 alkyl, substituted or unsubstituted C2-C12 alkenyl, substituted or unsubstituted C2-C12 alkynyl, substituted or unsubstituted C2-C12 alkoxy, substituted or unsubstituted C3-C12 cycloalkyl, and substituted or unsubstituted C6-C12 aryl; when substituted, the substituent is halo or cyano.
    Type: Application
    Filed: March 3, 2020
    Publication date: May 18, 2023
    Inventors: Junfei LIU, Lilan ZHANG, Chao TANG, Jianming ZHENG
  • Publication number: 20230123288
    Abstract: An electrochemical device, including a positive electrode, a negative electrode, a separator and an electrolyte. The electrolyte includes a nitrile compound, and the mass percentage of the nitrile compound in the electrolyte is A %; the negative electrode includes a current collector, wherein the current collector comprises a first region and a second region; the first region is provided with a negative electrode active substance layer; the second region does not comprise a negative electrode active substance layer; the area of the second region is B % of the surface area of the current collector; and A×B<600.
    Type: Application
    Filed: March 3, 2020
    Publication date: April 20, 2023
    Inventors: Lilan ZHANG, Chao TANG, Jianming ZHENG
  • Publication number: 20230105866
    Abstract: An electrolyte, including a carbonyl triazole compound or a thiocarbonyl triazole compound. Also, an electrochemical apparatus including a positive electrode, a negative electrode, and the electrolyte, and an electronic apparatus including the electrochemical apparatus. The electrolyte can improve high-temperature cycling performance of electrochemical apparatuses under high voltage conditions and reduce cycling resistance growth rate of the electrochemical apparatuses.
    Type: Application
    Filed: December 1, 2022
    Publication date: April 6, 2023
    Applicant: Ningde Amperex Technology Limited
    Inventors: Xiang WANG, Wenqiang LI, Chao TANG, Jianming ZHENG
  • Publication number: 20230104300
    Abstract: An electrolyte, comprising a compound of Formula I and an additive A, R1, R2, R3, R4, R5, R6, R7 and R8 are each independently selected from: hydrogen, halo, —COOX, substituted or unsubstituted C1-8alkyl, substituted or unsubstituted C2-10alkenyl, substituted or unsubstituted C2-10alkynyl, substituted or unsubstituted C1-8alkoxy, or —Ra—S(=O)2—Rb, wherein Ra is selected from substituted or unsubstituted C1-8alkylene, Rb is selected from halo or substituted or unsubstituted C1-8alkyl, and at least one of R1, R2, R3, R4, R5, R6, R7 and R8 is —COOX. When substituted, the substituent is selected from cyano or halo; and X is selected from Li+, Na+, K+ or Rb+. The additive A is at least one selected from fluoroethylene carbonate, LiPO2F2, or vinylene carbonate.
    Type: Application
    Filed: March 31, 2020
    Publication date: April 6, 2023
    Inventors: Mingming GUAN, Yali XIONG, Jianming ZHENG, Jianyu LIU
  • Patent number: 11621437
    Abstract: An electrolyte, including a fluorine-containing phosphate ester and a carboxylate ester, wherein the fluorine-containing phosphate ester is represented by Formula 1: R1, R2 and R3 are each independently selected from hydrogen, a C1-C10 alkyl group, C1-C10 alkoxy group, C1-C10 haloalkyl group, C1-C10 haloalkoxy group, C1-C10 phosphate ester group, or C1-C10 mono- or multiple-carbonate ester group, wherein at least one of R1, R2 and R3 comprises a fluorine atom. The weight ratio of the fluorine-containing phosphate ester to the carboxylate ester is 0.001-0.5.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: April 4, 2023
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Jianyu Liu, Jianming Zheng, Qian Wen, Wenqiang Li
  • Patent number: 11588174
    Abstract: Embodiments of the present application relate to a solid electrolyte and a preparation method thereof, and an electrochemical device and an electronic device comprising the solid electrolyte. The solid electrolyte comprises a lithium-containing transition metal sulfide being represented by the chemical formula of Li2?2a+bCd1+aMcGe1?dS4, where M is selected from the group consisting of Al, Ga, In, Si, Sn and a combination thereof, wherein 0<a?0.25, 0?b?0.2, 0?c?0.2, and 0?d?0.2. The embodiments of the present application effectively improve the shortcomings of poor chemical stability of the conventional thiophosphate solid electrolyte in an atmospheric environment by providing the above solid electrolyte having a thio-LISICON structure and containing no phosphorus (P), so that the solid electrolyte has both good chemical stability and high ionic conductivity, thereby reducing the processing environment requirements and manufacturing cost of the solid electrolyte.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: February 21, 2023
    Assignee: Ningde Amperex Technology Limited
    Inventors: Molin Zhou, Leimin Xu, Jianming Zheng, Jianli Gai
  • Patent number: 11521041
    Abstract: A fact validation method including the following steps: a statement to be validated is inputted and a searching is made for the statement to obtain an evidence set of the statement; a hierarchical heterogeneous graph consisting of an entity node, a sentence node and a context node is constructed based on the evidence set; the statement and the evidence set are spliced and a node is initialized to obtain feature representation of the node; the feature representation of the node is updated based on inference according to a propagation direction of a neural network of the node in the hierarchical heterogeneous graph; and an inference path for the updated feature representation of the node is built and a prediction result of the statement is output according to the inference path.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: December 6, 2022
    Assignee: National University of Defense Technology
    Inventors: Honghui Chen, Chonghao Chen, Fei Cai, Wanyu Chen, Jianming Zheng, Taihua Shao, Yupu Guo
  • Publication number: 20220322897
    Abstract: A handheld vacuum cleaner includes a frame, and a dust barrel and a locking portion mounted on the frame, wherein a front end of the dust barrel and the locking portion are movable relative to each other and are arranged opposite to each other; the dust barrel has a rotatable front cover at a front side thereof; and when the locking portion and the dust barrel move with respect to each other, the front cover is automatically rotatable to open, or close on the front side of the dust barrel due to limit by the locking portion.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 13, 2022
    Inventors: JIANQIANG FANG, JIANMING ZHENG, WENXIAN WU