Patents by Inventor Yuansen XIE

Yuansen XIE 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: 20200399133
    Abstract: The present application relates to a porous material and preparation methods thereof, and anodes and devices including the same. The porous material provided by the present application includes a material of the formula SiaMbOx, wherein the ratio of x to a is about 0.6 to about 1.5, and the ratio of a to b is about 8 to about 10,000, wherein M includes at least one selected from the group consisting of Al, Si, P, Mg, Ti and Zr. The anode and an electrochemical device including the porous material exhibit higher rate performance, higher first coulombic efficiency, higher cycle stability and lower cycle expansion ratio.
    Type: Application
    Filed: July 31, 2019
    Publication date: December 24, 2020
    Inventors: Ting YI, Chengbo ZHANG, Hang CUI, Yuansen XIE
  • Publication number: 20200266431
    Abstract: The present application relates to an anode material, and an electrochemical device and an electronic device comprising the same. The anode material is a silicon-based anode material having a core-shell structure, where a core is silicon oxide, and the silicon oxide can be represented by the general formula SiOx (about 0<x<about 2); and where the shell disposed on at least a portion of an outer surface of the silicon oxide core comprises a silicate of element M, and M is selected from the group consisting of Mg, Ca, Sr, Ba, Al, Ti, Zn and a combination thereof. The lithium-ion battery prepared from the anode material has high first coulombic efficiency and excellent cycle performance.
    Type: Application
    Filed: July 1, 2019
    Publication date: August 20, 2020
    Inventors: Chengbo ZHANG, Hang CUI, Yuansen XIE
  • Publication number: 20200266428
    Abstract: The present application relates to an anode active material and an anode, an electrochemical device and an electronic device using the same. Specifically, the present application provides an anode active material, including a lithiated silicon-oxygen material and a coating layer, where the coating layer and the lithiated silicon-oxygen material at least have one or more structural units selected from formulae ?CF2?a, ?CHF?b and ?CH2?c therebetween, where a, b, and c are integers greater than or equal to 6. The anode active material of the present application has high stability and is suitable for being subjected to aqueous processing to obtain the anode.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 20, 2020
    Inventors: Daoyi JIANG, Zhihuan CHEN, Hang CUI, Yuansen XIE
  • Publication number: 20200212427
    Abstract: The present application relates to an anode active material and an anode, an electrochemical device and an electronic device using same. Specifically, the present application provides an anode active material, including a lithiated silicon-oxygen material and a coating layer, where there is at least a Si—O-M bond between the coating layer and the lithiated silicon-oxygen material, where M is selected from one or more of an aluminum element, a boron element and a phosphorus element. The anode active material of the present application has high stability and is suitable for aqueous processing to be prepared into an anode.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 2, 2020
    Inventors: Daoyi JIANG, Hang CUI, Yuansen XIE
  • Publication number: 20200036004
    Abstract: The present application relates to a negative electrode composite material and preparation thereof and a lithium ion battery. The negative electrode composite material comprises an active material, a metal oxide on the surface of the active material, wherein the ratio of the specific surface area of the negative electrode composite material to the specific surface area of the active material is 1-7. The present application improves the volume energy density and safety performance of a lithium ion battery by selecting a ratio of a specific surface area of the negative electrode composite material to the active material.
    Type: Application
    Filed: October 28, 2018
    Publication date: January 30, 2020
    Inventors: Peng Du, Yuansen Xie, Yisong Su, Fan Yang
  • Publication number: 20200014028
    Abstract: The present invention provides a modified graphite negative electrode material, preparation method thereof and a secondary battery. The modified graphite negative electrode material includes a graphite and a multilayer graphene. The multilayer graphene are dispersed in the graphite. The multilayer graphene are loaded with a conductive agent by bonding of a binder. The modified graphite negative electrode material can achieve a higher compaction density for the negative electrode, and can effectively improve the lithium precipitation of the negative electrode of the secondary battery while improving the cycle performance of the secondary battery when being applied to the secondary battery.
    Type: Application
    Filed: August 23, 2019
    Publication date: January 9, 2020
    Inventors: Hang Cui, Taiqiang Chen, Yuansen Xie
  • Publication number: 20130171523
    Abstract: The present invention relates to the field of lithium-ion battery, and particularly to high-capacity cathode material, and high-energy density lithium-ion secondary battery prepared using the same. The cathode material comprises cathode active material, a binder and a conductive agent, in which the cathode active material is a compound material of lithium cobalt oxide-based active material A and nickel-based active material B pretreated before being mixed, and the mass ratio B/A of the lithium cobalt oxide-based active material A and nickel-based active material B is between 0.82 and 9. The present invention can produce a battery having both larger capacity and higher energy density, and address the problem of gas generation in the battery at high temperature.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 4, 2013
    Inventors: Zhi CHEN, Ying WANG, Fengguan ZHAO, Zilong YU, Yuansen XIE, Jianxun REN, Jiajai HU, Leimin XU
  • Publication number: 20120115024
    Abstract: A cathode electrode for lithium-ion secondary battery includes a current collector; and a cathode material layer comprising a bottom layer coated on the current collector and a top layer coated on the bottom layer. The lithium-ion transfer resistance of the active material particles in the bottom layer is smaller than that of the active material particles in the top layer, optimize the concentration polarization occurred in the cathode electrode during discharge, and enabling the lithium-ion secondary battery using the cathode electrode to be improved both in energy density and safety, and be further enhanced in specific capacity.
    Type: Application
    Filed: April 14, 2011
    Publication date: May 10, 2012
    Inventors: Zhi CHEN, Ying WANG, Fenggang ZHAO, Zilong YU, Yuansen XIE, Jianxun XIE, Jiajai HU, Leimin XU