Patents by Inventor Yingjie Xing

Yingjie Xing 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).

  • METHODS AND SYSTEMS FOR DRY SURFACE DOPING OF CATHODE MATERIALS
    Publication number: 20250070117
    Abstract: A doped cathode material for lithium-ion batteries is disclosed. Methods and systems are further provided for doping a cathode material for use in a lithium-ion battery. In one example, the doping may be a dry surface doping process. In some examples, dopants may stabilize a crystal structure of the cathode material and may result in fewer side reactions with an electrolyte as compared to an undoped cathode material. As such, cycling performance and capacity retention may be improved relative to the undoped cathode material. Further, in some examples, the doped cathode material produced with the dry surface doping process may have improved cycling performance and capacity retention relative to a comparable doped cathode material produced with a wet surface doping process.
    Type: Application
    Filed: November 15, 2024
    Publication date: February 27, 2025
    Inventors: Yang Shi, Kitae Kim, Lixin Wang, Yingjie Xing, Andrew Millonig, Bryan Kim, Derek C. Johnson
  • Methods and systems for dry surface doping of cathode materials
    Patent number: 12183912
    Abstract: A doped cathode material for lithium-ion batteries is disclosed. Methods and systems are further provided for doping a cathode material for use in a lithium-ion battery. In one example, the doping may be a dry surface doping process. In some examples, dopants may stabilize a crystal structure of the cathode material and may result in fewer side reactions with an electrolyte as compared to an undoped cathode material. As such, cycling performance and capacity retention may be improved relative to the undoped cathode material. Further, in some examples, the doped cathode material produced with the dry surface doping process may have improved cycling performance and capacity retention relative to a comparable doped cathode material produced with a wet surface doping process.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: December 31, 2024
    Assignee: A123 SYSTEMS LLC
    Inventors: Yang Shi, Kitae Kim, Lixin Wang, Yingjie Xing, Andrew Millonig, Bryan Kim, Derek C. Johnson
  • METHODS AND SYSTEMS FOR DRY SURFACE DOPING OF CATHODE MATERIALS
    Publication number: 20200358076
    Abstract: A doped cathode material for lithium-ion batteries is disclosed. Methods and systems are further provided for doping a cathode material for use in a lithium-ion battery. In one example, the doping may be a dry surface doping process. In some examples, dopants may stabilize a crystal structure of the cathode material and may result in fewer side reactions with an electrolyte as compared to an undoped cathode material. As such, cycling performance and capacity retention may be improved relative to the undoped cathode material. Further, in some examples, the doped cathode material produced with the dry surface doping process may have improved cycling performance and capacity retention relative to a comparable doped cathode material produced with a wet surface doping process.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 12, 2020
    Inventors: Yang Shi, Kitae Kim, Lixin Wang, Yingjie Xing, Andrew Millonig, Bryan Kim, Derek C. Johnson