Patents by Inventor Chad Alan HARTZOG

Chad Alan HARTZOG 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).

  • Publication number: 20240429463
    Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
    Type: Application
    Filed: June 12, 2024
    Publication date: December 26, 2024
    Inventors: Junzheng CHEN, Naoki OTA, Chad Alan HARTZOG, Xiaoming LIU, Michelle Robyn BROUWER, Anthony D'ANGELO, Daniel SALAZAR, Timothy Allen HANS, Junhua SONG
  • Publication number: 20240429466
    Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
    Type: Application
    Filed: September 4, 2024
    Publication date: December 26, 2024
    Applicant: 24M Technologies, Inc.
    Inventors: Junzheng CHEN, Naoki OTA, Chad Alan HARTZOG, Xiaoming LIU, Michelle Robyn BROUWER, Anthony D'ANGELO, Daniel SALAZAR, Timothy Allen HANS, Junhua SONG
  • Publication number: 20240413407
    Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
    Type: Application
    Filed: August 20, 2024
    Publication date: December 12, 2024
    Inventors: Junzheng CHEN, Naoki OTA, Chad Alan HARTZOG, Xiaoming LIU, Michelle Robyn BROUWER, Anthony D'ANGELO, Daniel SALAZAR, Timothy Allen HANS, Junhua SONG
  • Patent number: 12119458
    Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
    Type: Grant
    Filed: April 30, 2024
    Date of Patent: October 15, 2024
    Assignee: 24M Technologies, Inc.
    Inventors: Junzheng Chen, Naoki Ota, Chad Alan Hartzog, Xiaoming Liu, Michelle Robyn Brouwer, Anthony D'Angelo, Daniel Salazar, Timothy Allen Hans, Junhua Song
  • Patent number: 12100816
    Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
    Type: Grant
    Filed: December 18, 2023
    Date of Patent: September 24, 2024
    Assignee: 24M Technologies, Inc.
    Inventors: Junzheng Chen, Naoki Ota, Chad Alan Hartzog, Xiaoming Liu, Michelle Robyn Brouwer, Anthony D'Angelo, Daniel Salazar, Timothy Allen Hans, Junhua Song
  • Publication number: 20240291050
    Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
    Type: Application
    Filed: April 30, 2024
    Publication date: August 29, 2024
    Inventors: Junzheng CHEN, Naoki OTA, Chad Alan HARTZOG, Xiaoming LIU, Michelle Robyn BROUWER, Anthony D'ANGELO, Daniel SALAZAR, Timothy Allen HANS, Junhua SONG
  • Publication number: 20240204264
    Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
    Type: Application
    Filed: December 18, 2023
    Publication date: June 20, 2024
    Inventors: Junzheng CHEN, Naoki Ota, Chad Alan Hartzog, Xiaoming Liu, Michelle Robyn Brouwer, Anthony D'Angelo, Daniel Salazar, Timothy Allen Hans, Junhua Song
  • Publication number: 20240178502
    Abstract: Embodiments described herein relate to electrochemical cell assemblies with structural members for application of compressive force. In some aspects, an electrochemical cell assembly can include a plurality of electrochemical cells arranged in a stack, a first planar sheet in contact with a first side of the stack, a second planar sheet in contact with a second side of the stack, a first structural member in compressive contact with the first planar sheet, and a second structural member in compressive contact with the second planar sheet, wherein the compressive contact between the first structural member and the first planar sheet and the compressive contact between the second structural member and the second planar sheet collectively provide structural rigidity to the electrochemical cell assembly.
    Type: Application
    Filed: November 27, 2023
    Publication date: May 30, 2024
    Inventors: Naoki Ota, Junzheng Chen, Mark Young, Chad Alan Hartzog, Ryan Michael Lawrence, Kelly B. Ledbetter, Khosrow Nematollahi
  • Patent number: 11984564
    Abstract: Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
    Type: Grant
    Filed: December 18, 2023
    Date of Patent: May 14, 2024
    Assignee: 24M Technologies, Inc.
    Inventors: Junzheng Chen, Naoki Ota, Chad Alan Hartzog, Xiaoming Liu, Michelle Robyn Brouwer, Anthony D'Angelo, Daniel Salazar, Timothy Allen Hans, Junhua Song
  • Publication number: 20240047772
    Abstract: In some aspects, a method of monitoring health of an electrochemical cell can include measuring a first anode voltage at a first anode tab from the plurality of anode tabs and a second anode voltage at a second anode tab from the plurality of anode tabs; measuring a first cathode voltage at a first cathode tab from the plurality of cathode tabs and a second cathode voltage at a second cathode tab from the plurality of cathode tabs; and calculating a first sense voltage, the first sense voltage being a difference between the first cathode voltage and the first anode voltage. In some embodiments, a second sense voltage can be calculated, the second sense voltage being a difference between the second cathode voltage and the second anode voltage. In some embodiments, a difference between the first sense voltage and the second sense voltage can be calculated.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 8, 2024
    Inventors: Chad Alan HARTZOG, Mark YOUNG, Ryan Michael LAWRENCE, Junzheng CHEN, Naoki OTA
  • Publication number: 20240047832
    Abstract: Embodiments described herein relate to electrochemical cells and multicells. A multicell can include a cell packaging that includes two or more electrochemical cells connected in series internal to the cell packaging. In some aspects, an apparatus includes a plurality of electrochemical cell stacks each including a plurality of electrochemical cells connected in series, a first electrically conductive plate including a first section and a second section, and a second electrically conductive plate. The first section of the first electrically conductive plate is in contact with a first terminal end of a first electrochemical cell stack from the plurality of electrochemical cell stacks. The second section of the first electrically conductive plate is in contact with a first terminal end of a second electrochemical cell stack from the plurality of electrochemical cell stacks.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 8, 2024
    Inventors: Chad Alan HARTZOG, Mark YOUNG, Kenneth Douglas COBB, Junzheng CHEN
  • Publication number: 20240047810
    Abstract: In some aspects a method of monitoring an electrochemical cell stack can include measuring an anode voltage difference between a first anode tab from a plurality of anode tabs and a second anode tab from the plurality of anode tabs, measuring a cathode voltage difference between a first cathode tab from a plurality of cathode tabs and a second cathode tab from the plurality of cathode tabs, and calculating a difference between the cathode voltage and the anode voltage. In some embodiments, the first cathode tab and the first anode tab can be located at a proximal end of the electrochemical cell. In some embodiments, a distance between the first anode tab and the second anode tab is within about 5% of the distance between the first cathode tab and the second cathode tab.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 8, 2024
    Inventors: Chad Alan HARTZOG, Junzheng CHEN
  • Publication number: 20240047689
    Abstract: The embodiments described herein involve electrochemical cells that have a heating element integrated into the electrochemical cell. In some aspects, an electrochemical cell comprises an anode current collector, an anode material disposed on the anode current collector, a cathode current collector, a cathode material disposed on a first side of the cathode current collector, a separator disposed between the anode material and the cathode material, and a heating element disposed on a second side of the cathode current collector, the second side opposite the first side. The heating element may include an electrically conductive material and a conductive material and disposed in an insulative material.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 8, 2024
    Inventors: Chad Alan HARTZOG, Mark YOUNG, Kelly LEDBETTER, Junzheng CHEN, Frank Yongzhen FAN, Xiaoming LIU
  • Publication number: 20230282906
    Abstract: Embodiments described herein relate to electrochemical cells and electrochemical cell systems with thermal insulation systems, and methods of producing the same. An electrochemical cell can include an anode material disposed on an anode current collector, a cathode material disposed on a cathode current collector, a separator disposed between the anode material and the cathode material, and an insulating structure disposed around and containing the anode material, anode current collector, cathode material, cathode current collector, and the separator. The anode material and/or the cathode material includes a semi-solid electrode material. The semi-solid electrode material includes an active material and a conductive material in a liquid electrolyte. The liquid electrolyte has an electrolyte salt concentration of at least about 2.0 M. In some embodiments, the insulating structure includes a frame with a first wall and a second wall disposed therein.
    Type: Application
    Filed: March 7, 2023
    Publication date: September 7, 2023
    Inventors: Junzheng CHEN, Naoki OTA, Ryan Michael LAWRENCE, Jeffry DISKO, Chad Alan HARTZOG