Patents by Inventor Francis Gachau KINYANJUI

Francis Gachau KINYANJUI 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).

  • Lithium, nickel, cobalt, manganese oxide compound and electrode comprising the same
    Patent number: 11967711
    Abstract: A compound of the general formula: wherein x is equal to or greater than 0.175 and equal to or less than 0.325 and y is equal to or greater than 0.05 and equal to or less than 0.35. In another embodiment, x is equal to zero and y is greater than 0.12 and equal to or less than 0.4. The compound is also formulated into a positive electrode for use in an electrochemical cell.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: April 23, 2024
    Assignee: Dyson Technology Limited
    Inventors: Matthew Robert Roberts, Peter George Bruce, Niccolo Guerrini, Rong Hao, Francis Gachau Kinyanjui
  • COMPOUND
    Publication number: 20230365428
    Abstract: A compound of the general formula: Li ( 4 3 - 2 ? x 3 - y 3 - z 3 ) ? Ni x ? Co y ? Al z ? Mn ( 2 3 - K 3 - 2 ? y 3 - 2 ? z 3 ) ? O 2 wherein x is equal to or greater than 0 and equal to or less than 0.4; y is equal to or greater than 0.1 and equal to or less than 0.4; and z is equal to or greater than 0.02 and equal to or less than 0.3. The compound is also formulated into a positive electrode for use in an electrochemical cell.
    Type: Application
    Filed: May 19, 2023
    Publication date: November 16, 2023
    Applicant: Dyson Technology Limited
    Inventors: Matthew Robert ROBERTS, Peter George BRUCE, Francis Gachau KINYANJUI
  • Use of aluminum in a lithium rich cathode material for suppressing gas evolution from the cathode material during a charge cycle and for increasing the charge capacity of the cathode material
    Patent number: 11489158
    Abstract: Use of aluminum in a lithium rich cathode material of the general formula (I) for suppressing gas evolution from the cathode material during a charge cycle and for increasing the charge capacity of the cathode material.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: November 1, 2022
    Assignee: Dyson Technology Limited
    Inventors: Matthew Robert Roberts, Peter George Bruce, Francis Gachau Kinyanjui
  • USE OF COBALT IN A LITHIUM RICH CATHODE MATERIAL FOR INCREASING THE CHARGE CAPACITY OF THE CATHODE MATERIAL AND FOR SUPPRESSING GAS EVOLUTION FROM THE CATHODE MATERIAL DURING A CHARGE CYCLE
    Publication number: 20200381725
    Abstract: Use of cobalt in a cathode material of the general formula: Li (4/3-2x/3-y/3) NixCoyMn(2/3- x/3-2y/3)O2 for increasing the charge capacity of the material and for suppressing gas evolution from the cathode material during a charge cycle.
    Type: Application
    Filed: December 18, 2018
    Publication date: December 3, 2020
    Applicant: Dyson Technology Limited
    Inventors: Matthew Robert ROBERTS, Peter George BRUCE, Niccolo GUERRINI, Rong HAO, Francis Gachau KINYANJUI
  • USE OF ALUMINUM IN A LITHIUM RICH CATHODE MATERIAL FOR SUPPRESSING GAS EVOLUTION FROM THE CATHODE MATERIAL DURING A CHARGE CYCLE AND FOR INCREASING THE CHARGE CAPACITY OF THE CATHODE MATERIAL
    Publication number: 20200381726
    Abstract: Use of aluminum in a lithium rich cathode material of the general formula (I) for suppressing gas evolution from the cathode material during a charge cycle and for increasing the charge capacity of the cathode material.
    Type: Application
    Filed: December 18, 2018
    Publication date: December 3, 2020
    Applicant: Dyson Technology Limited
    Inventors: Matthew Robert ROBERTS, Peter George BRUCE, Francis Gachau KINYANJUI
  • COMPOUND
    Publication number: 20200377376
    Abstract: A compound of the general formula: Li(4/3?2x/3?y/3?z/3) NixCoyAlzMn(2/3?x/3?2y/3?2z/3)O2 wherein x is equal to or greater than 0.2 and equal to or less than 0.55; y is equal to or greater than 0.025 and equal to or less than 0.325; and z is equal to or greater than 0.025 and equal to or less than 0.075. In another embodiment, y=0, xis equal to or greater than 0.525 and equal to or less than 0.55; and z is equal to 0.05. The compound is also formulated into a positive electrode for use in an electrochemical cell.
    Type: Application
    Filed: December 18, 2018
    Publication date: December 3, 2020
    Applicant: Dyson Technology Limited
    Inventors: Matthew Robert ROBERTS, Peter George BRUCE, Francis Gachau KINYANJUI
  • COMPOUND
    Publication number: 20200381724
    Abstract: A compound of the general formula: wherein x is equal to or greater than 0.175 and equal to or less than 0.325 and y is equal to or greater than 0.05 and equal to or less than 0.35. In another embodiment, x is equal to zero and y is greater than 0.12 and equal to or less than 0.4. The compound is also formulated into a positive electrode for use in an electrochemical cell.
    Type: Application
    Filed: December 18, 2018
    Publication date: December 3, 2020
    Applicant: Dyson Technology Limited
    Inventors: Matthew Robert ROBERTS, Peter George BRUCE, Niccolo GUERRINI, Rong HAO, Francis Gachau KINYANJUI