Patents by Inventor Victor Prajapati

Victor Prajapati 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).

  • Patent number: 11973225
    Abstract: Described are embodiments of a lithium metal phosphate production methods and systems. The systems and methods can include combining lithium extraction from spodumene, lithium recycling from lithium ion battery (“LIB”) black mass, and/or lithium metal phosphate synthesis from metal phosphates.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: April 30, 2024
    Assignee: Rivian IP Holdings, LLC
    Inventors: Guoxian Liang, Majid Talebiesfandarani, Cary Michael Hayner, Ki Tae Park, Victor Prajapati
  • Publication number: 20240113295
    Abstract: Described are embodiments of a lithium metal phosphate production methods and systems. The systems and methods can include combining lithium extraction from spodumene, lithium recycling from lithium ion battery (“LIB”) black mass, and/or lithium metal phosphate synthesis from metal phosphates.
    Type: Application
    Filed: October 4, 2022
    Publication date: April 4, 2024
    Inventors: Guoxian LIANG, Majid TALEBIESFANDARANI, Cary Michael HAYNER, Ki Tae PARK, Victor PRAJAPATI
  • Publication number: 20240006608
    Abstract: An electrode active material includes a dopant (M2) and a lithium iron phosphate host material, where the electrode active material is represented as LiM2xFe1?xPO4; M2 is a transition metal or main group metal; x is 0.01 to 0.15; the electrode active material exhibits an increased ionic conductivity compared to a lithium iron phosphate (LiFePO4) without the dopant; and the electrode active material has a particle size distribution characterized by a D50 greater than or equal to 1 ?m.
    Type: Application
    Filed: July 1, 2022
    Publication date: January 4, 2024
    Inventors: Soo Kim, Rubayyat Mahbub, Majid Talebiesfandarani, Sun Ung Kim, Sookyung Jeong, Tae Kyoung Kim, Ki Tae Park, Victor Prajapati
  • Publication number: 20230378452
    Abstract: A cathode active material includes a bulk nickel-rich cathode active material having a lithium metal oxide coating on a surface of the bulk nickel-rich cathode active material, wherein the lithium metal oxide coating exhibits one or more of the following: a greater PF5? score when normalized to that of LiAlO2 at 100%; a greater HF score when normalized to that of LiAlO2 at 100%; or in absolute terms, an enthalpy of reaction value that is less than 0.351.
    Type: Application
    Filed: May 23, 2022
    Publication date: November 23, 2023
    Inventors: Soo Kim, Ki Tae Park, Johnson Mark, Victor Prajapati
  • Publication number: 20230216029
    Abstract: Lithium-ion batteries (LIBs) which include a metal phosphate coating material reactive (scavenging) or stable with cathode materials, HF, LiF, PF5?, and LiOH. The metal phosphates may be applied on the cathode material of LIBs.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 6, 2023
    Inventors: Soo Kim, Johnson Mark, Victor Prajapati, Ki Tae Park
  • Patent number: 8969216
    Abstract: A method for single side texturing of a crystalline semiconductor substrate (10) comprises: providing a substrate (10), for example a semiconductor substrate, comprising a first surface (12) and a second surface (14) opposite to one another with respect to the substrate (10); providing a masking layer (21) with a random pattern on the first surface (12) of the substrate (10); and etching the substrate (10) in a polishing solution, thereby texturing the first surface (12) of the substrate (10) and polishing the second surface (14) in a single wet etching step.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: March 3, 2015
    Assignees: IMEC, Katholieke Universiteit Leuven, K.U. Leuven R&D
    Inventors: Victor Prajapati, Joachim John
  • Publication number: 20120295446
    Abstract: A method for single side texturing of a crystalline semiconductor substrate (10) comprises: providing a substrate (10), for example a semiconductor substrate, comprising a first surface (12) and a second surface (14) opposite to one another with respect to the substrate (10); providing a masking layer (21) with a random pattern on the first surface (12) of the substrate (10); and etching the substrate (10) in a polishing solution, thereby texturing the first surface (12) of the substrate (10) and polishing the second surface (14) in a single wet etching step.
    Type: Application
    Filed: February 11, 2011
    Publication date: November 22, 2012
    Applicants: Katholieke Universiteit Leuven, IMEC
    Inventors: Victor Prajapati, Joachim John
  • Publication number: 20120199202
    Abstract: A method for fabricating a crystalline silicon photovoltaic cell is disclosed. In one aspect, the method includes a) providing a crystalline silicon substrate of a first dopant type, b) performing an implantation, thereby introducing dopants of a second type opposite to the first type at a front side of the crystalline silicon substrate, c) after the implantation, depositing a hydrogen containing layer on the front surface of the substrate, and d) after depositing the hydrogen containing layer, performing a thermal treatment, thereby electrically activating the dopant of the second type.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 9, 2012
    Applicants: Katholieke Universiteit Leuven, IMEC
    Inventor: Victor Prajapati