Patents by Inventor Dezhan Li

Dezhan Li 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: 20230323099
    Abstract: A polypropylene composition, a preparation method therefor, and an article made therefrom, the polypropylene composition comprising: (a) 70-95% by weight of a crystalline homo-polypropylene having a isotactic pentad fraction of 96% or more and forming a continuous matrix phase in the polypropylene composition; (b) 5-30% by weight of an ethylene-propylene elastic copolymer containing 20-35% by weight of an ethylene structure unit and 65-80% by weight of a propylene structure unit, and forming a dispersed rubber phase in the continuous matrix phase, such that the rubber phase can at least partially deform under an orientation force and form an orientation state structure, wherein the ratio of melt mass flow rate measured at 230° C. and a 2.16 kg load of the crystalline homo-polypropylene and the polypropylene composition is 0.5-2.0.
    Type: Application
    Filed: August 20, 2021
    Publication date: October 12, 2023
    Inventors: Xiaomeng ZHANG, Wenbo SONG, Fasheng ZOU, Huijie HU, Dezhan LI, Lusheng WANG, Mengyao ZHAO, Qi ZHANG, Zhenjie LIU, Hao YUAN
  • Publication number: 20210179842
    Abstract: A microspheric ionomer having a cross-linked structure, a preparation method therefor, applications thereof, and a preparation system thereof. The ionomer comprises structure units A represented by formula (1), structure units B represented by formula (2), and a cross-linking structure provided by a cross-linking agent, M being separately selected from H, a metal cation, and a straight chain, a saturated alkyl of branched or ring-shaped C1-C20, R being H or a methyl; and metal cations are introduced to part of structure units A in the ionomer. The ionomer shows an outstanding effect on nucleation of PET, serves as a nucleating agent for PET modification, so as to obtain a corresponding PET composition.
    Type: Application
    Filed: October 25, 2018
    Publication date: June 17, 2021
    Inventors: Wenbo SONG, Hao YUAN, Zhenjie LIU, Jinliang QlAO, Shijun ZHANG, Hua YIN, Huijie HU, Qing SHAO, Jie ZHANG, Xiaomeng ZHANG, Dezhan LI, Fuyong BI
  • Patent number: 10882641
    Abstract: Provided is a multifunctional structure for electrical energy and mechanical environment management, which comprises a main structure module, four rechargeable/dischargeable power source modules (PSMs), a vibration reduction system and a sensor module. The main structure module includes a framework, an upper cover plate and a lower cover plate. Elastic blocks are arranged between the periphery of each PSM and walls of the square cavity used for accommodating the PSM. Elastic cushions are arranged between the bottom surface of each PSM and the lower cover plate, and between the top surface of each PSM and the upper cover plate. The multifunctional structure, by means of embedding the PSMs into the interior of the structure, can realize high integration of multiple functions, such as bearing, power supply and vibration reduction, and can greatly improve the load/mass ratio, the load/volume ratio and the function/structure ratio of a system platform.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: January 5, 2021
    Assignee: NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY
    Inventors: Dongxu Li, Changping Yin, Jun Wu, Dezhan Li
  • Patent number: 10693180
    Abstract: A solid-state polymer lithium battery pack and a preparation method therefor are provided. The lithium battery pack includes: single batteries (1), connecting sleeve members (2), electric cables (3), a battery box (4) and a pouring sealant, and has functions of power supply, power storage and multiple charging/discharging. The preparation method includes: connecting a plurality of single batteries in series by means of connecting sleeve members (2) to form combined batteries; connecting a plurality of combined batteries in series to form a lithium battery pack; and finally, assembling the lithium battery pack into a battery box (4), filling a pouring sealant inside the battery box by means of a sealant pouring process for fixing the single batteries (1) and internal electric cables (3), and discharging air in the battery box (4), so that a final solid-state polymer lithium battery pack is obtained.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: June 23, 2020
    Assignee: NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY
    Inventors: Dongxu Li, Dezhan Li, Jianwen Liu, Changping Yin, Peng Zhao, Fubiao Yang
  • Publication number: 20180254514
    Abstract: A solid-state polymer lithium battery pack and a preparation method therefor are provided. The lithium battery pack includes: single batteries (1), connecting sleeve members (2), electric cables (3), a battery box (4) and a pouring sealant, and has functions of power supply, power storage and multiple charging/discharging. The preparation method includes: connecting a plurality of single batteries in series by means of connecting sleeve members (2) to form combined batteries; connecting a plurality of combined batteries in series to form a lithium battery pack; and finally, assembling the lithium battery pack into a battery box (4), filling a pouring sealant inside the battery box by means of a sealant pouring process for fixing the single batteries (1) and internal electric cables (3), and discharging air in the battery box (4), so that a final solid-state polymer lithium battery pack is obtained.
    Type: Application
    Filed: July 12, 2016
    Publication date: September 6, 2018
    Inventors: Dongxu Li, Dezhan Li, Jianwen Liu, Changping Yin, Peng Zhao, Fubiao Yang
  • Publication number: 20180118379
    Abstract: Provided is a multifunctional structure for electrical energy and mechanical environment management, which comprises a main structure module, four rechargeable/dischargeable power source modules (PSMs), a vibration reduction system and a sensor module. The main structure module includes a framework, an upper cover plate and a lower cover plate. Elastic blocks are arranged between the periphery of each PSM and walls of the square cavity used for accommodating the PSM. Elastic cushions are arranged between the bottom surface of each PSM and the lower cover plate, and between the top surface of each PSM and the upper cover plate. The multifunctional structure, by means of embedding the PSMs into the interior of the structure, can realize high integration of multiple functions, such as bearing, power supply and vibration reduction, and can greatly improve the load/mass ratio, the load/volume ratio and the function/structure ratio of a system platform.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Inventors: Dongxu Li, Changping Yin, Jun Wu, Dezhan Li