Patents by Inventor Robert C. Ionescu

Robert C. Ionescu 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).

  • Porous silicon material and method of manufacture
    Patent number: 12291457
    Abstract: A method for forming a porous silicon material can include forming a mixture of silicon, carbon, and an etchant element, solidifying the mixture, removing the etchant element to form pores within the silicon material. The porous silicon material can include a distribution of pores with an average pore diameter between about 10 nm and 500 nm, wherein the silicon particle comprises a silicon carbon composite comprising 1-5% carbon by mass, 1-5% oxygen by mass, and 90-98% silicon by mass.
    Type: Grant
    Filed: March 4, 2024
    Date of Patent: May 6, 2025
    Assignee: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • SILICON MATERIAL AND METHOD OF MANUFACTURE
    Publication number: 20250092266
    Abstract: A silicon material can include a silicon aggregate comprising a plurality of porous silicon nanoparticles welded together. The silicon aggregate can optionally have a polyhedral morphology. A method can include: receiving a plurality of porous silicon nanoparticles and cold welding the plurality of porous silicon nanoparticles into an aggregated silicon particle.
    Type: Application
    Filed: December 3, 2024
    Publication date: March 20, 2025
    Applicant: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • ELECTRODE SLURRY AND METHOD OF MANUFACTURE
    Publication number: 20240339594
    Abstract: A method for making an anode slurry can include mixing an active material, a conductive additive, and a binder in a solvent, where a ratio of the active material to the conductive additive to the binder is between 70:15:15 and 95:0:5 by mass, wherein a mixing environment is maintained under vacuum relative to atmospheric pressure.
    Type: Application
    Filed: June 20, 2024
    Publication date: October 10, 2024
    Applicant: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • SOLID STATE BATTERY WITH SILICON ANODE
    Publication number: 20240332520
    Abstract: A battery can include a cathode including a lithium-containing active material and a solid electrolyte; an anode including a silicon active material including porous silicon particles and optionally a solid electrolyte, a separator between the anode and the cathode, and an enclosure surrounding the anode, the cathode, and the separator.
    Type: Application
    Filed: June 3, 2024
    Publication date: October 3, 2024
    Applicant: ionobell, Inc.
    Inventors: Matthew Garrity, Robert C. Ionescu, Chueh Liu
  • Electrode slurry and method of manufacture
    Patent number: 12057568
    Abstract: A silicon mixture can include active material, one or more additive, and optionally solvent. A method for making a silicon mixture can include reducing a silica precursor, fusing silicon particles, mixing constituents of a silicon mixture, and casting a film using the silicon mixture.
    Type: Grant
    Filed: July 7, 2023
    Date of Patent: August 6, 2024
    Assignee: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • POROUS SILICON MATERIAL AND METHOD OF MANUFACTURE
    Publication number: 20240246827
    Abstract: A method for forming a porous silicon material can include forming a mixture of silicon, carbon, and an etchant element, solidifying the mixture, removing the etchant element to form pores within the silicon material. The porous silicon material can include a distribution of pores with an average pore diameter between about 10 nm and 500 nm, wherein the silicon particle comprises a silicon carbon composite comprising 1-5% carbon by mass, 1-5% oxygen by mass, and 90-98% silicon by mass.
    Type: Application
    Filed: March 4, 2024
    Publication date: July 25, 2024
    Applicant: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • SILICON ANODE BATTERY
    Publication number: 20240243269
    Abstract: A battery can include a lithium cathode, a silicon anode, a separator between the lithium cathode and the silicon anode, and an electrolyte. The silicon anode can include a silicon particle with an external volume expansion that is at most about 15% when the silicon particles are fully lithiated. A capacity of the silicon anode can be between about 1.05 and 1.5 times the capacity of the lithium cathode.
    Type: Application
    Filed: February 7, 2024
    Publication date: July 18, 2024
    Applicant: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • Silicon battery and method for assembly
    Patent number: 12040439
    Abstract: A method for forming a battery anode can include: forming a slurry including active material comprising silicon particles, wherein the silicon particles can be derived from silica fumes, depositing the slurry on an current collector, drying the deposited slurry to form a deposited film, and compacting the deposited film to form the battery anode.
    Type: Grant
    Filed: May 4, 2023
    Date of Patent: July 16, 2024
    Assignee: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • SILICA MATERIAL AND METHOD OF MANUFACTURE AND SILICON DERIVED THEREFROM
    Publication number: 20240190711
    Abstract: A method can include reducing a silica starting material to produce a first quantity of at least metallurgical grade silicon and a second quantity of silica comprising elemental carbon doping, wherein the silica starting material is reduced in the presence of a carbonaceous reducing agent. A silica material can be a silica material as prepared according to the method.
    Type: Application
    Filed: February 22, 2024
    Publication date: June 13, 2024
    Applicant: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • SYSTEM AND METHOD FOR SILICON MATERIAL MANUFACTURING
    Publication number: 20240109779
    Abstract: A system can include one or more chambers, where a chamber can include an agitation mechanism, an activation source, and one or more ports (e.g., inlets and/or outlets). A method can include one or more of preparing a silica starting material, reducing the silica starting material, washing the silicon, and/or coating the silicon.
    Type: Application
    Filed: December 12, 2023
    Publication date: April 4, 2024
    Applicant: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • Porous silicon material and method of manufacture
    Patent number: 11945726
    Abstract: A method for forming a porous silicon material can include forming a mixture of silicon, carbon, and an etchant element, solidifying the mixture, removing the etchant element to form pores within the silicon material. The porous silicon material can include a distribution of pores with an average pore diameter between about 10 nm and 500 nm, wherein the silicon particle comprises a silicon carbon composite comprising 1-5% carbon by mass, 1-5% oxygen by mass, and 90-98% silicon by mass.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: April 2, 2024
    Assignee: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • Silicon material and method of manufacture
    Patent number: 11905421
    Abstract: A silicon material can include a silicon aggregate comprising a plurality of porous silicon nanoparticles welded together. The silicon aggregate can optionally have a polyhedral morphology. A method can include: receiving a plurality of porous silicon nanoparticles and cold welding the plurality of porous silicon nanoparticles into an aggregated silicon particle.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: February 20, 2024
    Assignee: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • ELECTRODE SLURRY AND METHOD OF MANUFACTURE
    Publication number: 20240014380
    Abstract: A silicon mixture can include active material, one or more additive, and optionally solvent. A method for making a silicon mixture can include reducing a silica precursor, fusing silicon particles, mixing constituents of a silicon mixture, and casting a film using the silicon mixture.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 11, 2024
    Inventors: Robert C. Ionescu, Chueh Liu
  • Silicon battery and method for assembly
    Patent number: 11799075
    Abstract: A method for forming a battery anode can include: forming a slurry including active material comprising silicon particles, wherein the silicon particles can be derived from silica fumes, depositing the slurry on an current collector, drying the deposited slurry to form a deposited film, and compacting the deposited film to form the battery anode.
    Type: Grant
    Filed: October 12, 2022
    Date of Patent: October 24, 2023
    Assignee: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • Porous silicon and method of manufacture
    Patent number: 11780733
    Abstract: A method for manufacturing porous silicon can include reducing unpurified silica in the presence of a reducing agent to prepare a porous silicon material. A porous silicon material including silicon nanoparticles and clusters of silicon nanoparticles, where the pores are cooperatively defined by the nanoparticles within the clusters.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: October 10, 2023
    Assignee: ionobell, Inc.
    Inventors: Robert C. Ionescu, Chueh Liu
  • SILICON BATTERY AND METHOD FOR ASSEMBLY
    Publication number: 20230307621
    Abstract: A method for forming a battery anode can include: forming a slurry including active material comprising silicon particles, wherein the silicon particles can be derived from silica fumes, depositing the slurry on an current collector, drying the deposited slurry to form a deposited film, and compacting the deposited film to form the battery anode.
    Type: Application
    Filed: May 4, 2023
    Publication date: September 28, 2023
    Inventors: Robert C. Ionescu, Chueh Liu
  • SILICA MATERIAL AND METHOD OF MANUFACTURE AND SILICON DERIVED THEREFROM
    Publication number: 20230234854
    Abstract: A method can include reducing a silica starting material to produce a first quantity of at least metallurgical grade silicon and a second quantity of silica comprising elemental carbon doping, wherein the silica starting material is reduced in the presence of a carbonaceous reducing agent. A silica material can be a silica material as prepared according to the method.
    Type: Application
    Filed: January 25, 2023
    Publication date: July 27, 2023
    Inventors: Robert C. Ionescu, Chueh Liu
  • POROUS SILICON MATERIAL AND METHOD OF MANUFACTURE
    Publication number: 20230183076
    Abstract: A method for forming a porous silicon material can include forming a mixture of silicon, carbon, and an etchant element, solidifying the mixture, removing the etchant element to form pores within the silicon material. The porous silicon material can include a distribution of pores with an average pore diameter between about 10 nm and 500 nm, wherein the silicon particle comprises a silicon carbon composite comprising 1-5% carbon by mass, 1-5% oxygen by mass, and 90-98% silicon by mass.
    Type: Application
    Filed: December 13, 2022
    Publication date: June 15, 2023
    Inventors: Robert C. Ionescu, Chueh Liu
  • SILICON MATERIAL AND METHOD OF MANUFACTURE
    Publication number: 20230150824
    Abstract: A silicon material can include a composition with at least about 50% silicon, at most about 45% carbon, and at most about 10% oxygen. The silicon material can have an external expansion that is less than about 40%. The silicon material can include silicon nanoparticles, which can cooperatively form clusters. The silicon nanoparticles can be porous.
    Type: Application
    Filed: January 12, 2023
    Publication date: May 18, 2023
    Inventors: Robert C. Ionescu, Chueh Liu
  • SILICON BATTERY AND METHOD FOR ASSEMBLY
    Publication number: 20230110918
    Abstract: A method for forming a battery anode can include: forming a slurry including active material comprising silicon particles, wherein the silicon particles can be derived from silica fumes, depositing the slurry on an current collector, drying the deposited slurry to form a deposited film, and compacting the deposited film to form the battery anode.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 13, 2023
    Inventors: Robert C. Ionescu, Chueh Liu