Patents by Inventor HEJI HUANG

HEJI HUANG 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).

  • Liquid membrane conveying apparatus for preparing porous membrane
    Patent number: 11185826
    Abstract: The present disclosure provides a liquid membrane conveying apparatus for preparing a porous membrane includes a transmission unit and a carrier unit. The carrier unit conveys a liquid membrane into a gelling solution by the entrainment of the transmission unit. The carrier unit includes a first carrier and a second carrier. The first carrier and the second carrier respectively contact with opposite edges of the liquid membrane along a conveying direction of the liquid membrane. The consistency of the pores on the two surfaces of the porous membrane is improved by using the liquid membrane conveying apparatus.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: November 30, 2021
    Assignee: MICROVAST POWER SYSTEMS CO., LTD.
    Inventors: Xiang Li, Heji Huang, Wei Li, Binbin Wu
  • Aromatic polyamide porous membrane, method for preparing and lithium secondary battery having the same
    Patent number: 10879512
    Abstract: The present disclosure provides an aromatic polyamide porous membrane having a uniform internal structure. The internal structure of the membrane is a three-dimensional network porous structure with micron-sized pores. The aromatic polyamide porous membrane of the present disclosure has good thermal stability and is especially suitable for a high energy density lithium-ion power battery, and greatly improves the thermal runaway temperature of the battery. The present disclosure further provides a method for preparing the membrane and a lithium secondary battery having the membrane.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: December 29, 2020
    Assignee: MICROVAST POWER SYSTEMS CO., LTD.
    Inventors: Qingjin Sun, Heji Huang, Wei Li, Xiang Li
  • AROMATIC POLYAMIDE POROUS MEMBRANE, METHOD FOR PREPARING AND LITHIUM SECONDARY BATTERY HAVING THE SAME
    Publication number: 20190074500
    Abstract: The present disclosure provides an aromatic polyamide porous membrane having a uniform internal structure. The internal structure of the membrane is a three-dimensional network porous structure with micron-sized pores. The aromatic polyamide porous membrane of the present disclosure has good thermal stability and is especially suitable for a high energy density lithium-ion power battery, and greatly improves the thermal runaway temperature of the battery. The present disclosure further provides a method for preparing the membrane and a lithium secondary battery having the membrane.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 7, 2019
    Inventors: QINGJIN SUN, HEJI HUANG, WEI LI, XIANG LI
  • LIQUID MEMBRANE CONVEYING APPARTUS FOR PREPARING POROUS MEMBRANE
    Publication number: 20190009222
    Abstract: The present disclosure provides a liquid membrane conveying apparatus for preparing a porous membrane includes a transmission unit and a carrier unit. The carrier unit conveys a liquid membrane into a gelling solution by the entrainment of the transmission unit. The carrier unit includes a first carrier and a second carrier. The first carrier and the second carrier respectively contact with opposite edges of the liquid membrane along a conveying direction of the liquid membrane. The consistency of the pores on the two surfaces of the porous membrane is improved by using the liquid membrane conveying apparatus.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 10, 2019
    Inventors: XIANG LI, HEJI HUANG, WEI LI, BINBIN WU