Patents by Inventor Xuejiao Feng

Xuejiao Feng 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).

  • SiOx/Si/C composite material and process of producing thereof, and anode for lithium ion battery comprising said composite material
    Patent number: 9972836
    Abstract: An SiOx/Si/C composite material, includes SiOx/Si composite particles and a carbon coating layer coated on the SiOx/Si composite particles. The SiOx/Si composite particles include nano-silicon crystallites embedded in an SiOx (0<x?2) amorphous matrix phase. The SiOx/Si composite particles have an Si:O molar ratio of 5:1-1.1:1, preferably 2:1-1.2:1. A process for producing an SiOx/Si/C composite material, includes a) milling SiO powder together with a metal reductant in a molar ratio of 125:1-10:1, preferably 2:11-5:1, b) totally removing the oxidation product of the metal reductant to obtain SiOx/Si composite particles, and c) coating the SiOx/Si composite particles with carbon to obtain the SiOx/Si/C composite material.
    Type: Grant
    Filed: April 27, 2013
    Date of Patent: May 15, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Jun Yang, Xuejiao Feng, Jingjun Zhang, Longjie Zhou, Yuqian Dou
  • Mesoporous silicon/carbon composite for use as lithium ion battery anode material and process of preparing the same
    Patent number: 9379381
    Abstract: A silicon/carbon composite comprises mesoporous silicon particles and carbon coating provided on the silicon particles, wherein the silicon particles have two pore size distribution of 2-4 nm and 20-40 nm. A process of preparing the silicon/carbon composite comprises the steps of preparing mesoporous silicon particles via a mechanochemical reaction between SiCl4 and Li33Si4 under ball milling and subsequent thermal treatment and washing process, and coating the mesoporous silicon particles with carbon. An anode for lithium ion battery comprises the silicon/carbon composite. A lithium ion battery comprises the silicon/carbon composite.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: June 28, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Jun Yang, Xuejiao Feng, Jingjun Zhang, Longjie Zhou
  • SiOx/Si/C Composite Material and Process of Producing thereof, and Anode for Lithium Ion Battery Comprising Said Composite Material
    Publication number: 20160079591
    Abstract: An SiOx/Si/C composite material, includes SiOx/Si composite particles and a carbon coating layer coated on the SiOx/Si composite particles. The SiOx/Si composite particles include nano-silicon crystallites embedded in an SiOx (0<x?2) amorphous matrix phase. The SiOx/Si composite particles have an Si:O molar ratio of 5:1-1.1:1, preferably 2:1-1.2:1. A process for producing an SiOx/Si/C composite material, includes a) milling SiO powder together with a metal reductant in a molar ratio of 125:1-10:1, preferably 2:11-5:1, b) totally removing the oxidation product of the metal reductant to obtain SiOx/Si composite particles, and c) coating the SiOx/Si composite particles with carbon to obtain the SiOx/Si/C composite material.
    Type: Application
    Filed: April 27, 2013
    Publication date: March 17, 2016
    Applicants: ROBERT BOSCH GMBH, SHANGHAI JIAOTONG UNIVERSITY
    Inventors: Jun Yang, Xuejiao Feng, Jingjun Zhang, Longjie Zhou, Yuqian Dou
  • MESOPOROUS SILICON/CARBON COMPOSITE FOR USE AS LITHIUM ION BATTERY ANODE MATERIAL AND PROCESS OF PREPARING THE SAME
    Publication number: 20150024276
    Abstract: A silicon/carbon composite comprises mesoporous silicon particles and carbon coating provided on the silicon particles, wherein the silicon particles have two pore size distribution of 2-4 nm and 20-40 nm. A process of preparing the silicon/carbon composite comprises the steps of preparing mesoporous silicon particles via a mechanochemical reaction between SiCl4 and Li33Si4 under ball milling and subsequent thermal treatment and washing process, and coating the mesoporous silicon particles with carbon. An anode for lithium ion battery comprises the silicon/carbon composite. A lithium ion battery comprises the silicon/carbon composite.
    Type: Application
    Filed: November 30, 2011
    Publication date: January 22, 2015
    Applicant: Robert Bosch GmbH
    Inventors: Jun Yang, Xuejiao Feng, Jingjun Zhang, Longjie Zhou