Patents by Inventor Yet-Ming Chiang

Yet-Ming Chiang 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: 11394049
    Abstract: Embodiments described herein relate generally to devices, systems and methods of producing high energy density batteries having a semi-solid cathode that is thicker than the anode. An electrochemical cell can include a positive electrode current collector, a negative electrode current collector and an ion-permeable membrane disposed between the positive electrode current collector and the negative electrode current collector. The ion-permeable membrane is spaced a first distance from the positive electrode current collector and at least partially defines a positive electroactive zone. The ion-permeable membrane is spaced a second distance from the negative electrode current collector and at least partially defines a negative electroactive zone. The second distance is less than the first distance.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: July 19, 2022
    Assignee: 24M Technologies, Inc.
    Inventors: Taison Tan, Yet-Ming Chiang, Naoki Ota, Throop Wilder, Mihai Duduta
  • Patent number: 11387450
    Abstract: The present invention is generally related to separators for use in lithium metal batteries, and associated systems and products. Certain embodiments are related to separators that form or are repaired when an electrode is held at a voltage. In some embodiments, an electrochemical cell may comprise an electrolyte that comprises a precursor for the separator.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: July 12, 2022
    Assignees: Massachusetts Institute of Technology, Carnegie Mellon University
    Inventors: Yet-Ming Chiang, Venkatasubramanian Viswanathan, Linsen Li, Vikram Pande, David Wang
  • Publication number: 20220173446
    Abstract: Embodiments described herein relate generally to methods for the remediation of electrochemical cell electrodes. In some embodiments, a method includes obtaining an electrode material. At least a portion of the electrode material is rinsed to remove a residue therefrom. The electrode material is separated into constituents for reuse.
    Type: Application
    Filed: July 9, 2021
    Publication date: June 2, 2022
    Applicant: 24M Technologies, Inc.
    Inventors: Yet-Ming CHIANG, William Henry WOODFORD, Hiuling Zoe YU
  • Patent number: 11342567
    Abstract: Redox flow devices are described including a positive electrode current collector, a negative electrode current collector, and an ion-permeable membrane separating said positive and negative current collectors, positioned and arranged to define a positive electroactive zone and a negative electroactive zone; wherein at least one of said positive and negative electroactive zone comprises a flowable semi-solid composition comprising ion storage compound particles capable of taking up or releasing said ions during operation of the cell, and wherein the ion storage compound particles have a polydisperse size distribution in which the finest particles present in at least 5 vol % of the total volume, is at least a factor of 5 smaller than the largest particles present in at least 5 vol % of the total volume.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: May 24, 2022
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Yet-Ming Chiang, William Craig Carter, Mihai Duduta, Pimpa Limthongkul
  • Publication number: 20220145477
    Abstract: Chemical reaction devices involving acid and/or base, and related systems and methods, are generally described.
    Type: Application
    Filed: March 13, 2020
    Publication date: May 12, 2022
    Applicant: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Leah Ellis, Andres Badel, Isaac W. Metcalf
  • Patent number: 11309531
    Abstract: A method of manufacturing an electrochemical cell includes transferring an anode semi-solid suspension to an anode compartment defined at least in part by an anode current collector and an separator spaced apart from the anode collector. The method also includes transferring a cathode semi-solid suspension to a cathode compartment defined at least in part by a cathode current collector and the separator spaced apart from the cathode collector. The transferring of the anode semi-solid suspension to the anode compartment and the cathode semi-solid to the cathode compartment is such that a difference between a minimum distance and a maximum distance between the anode current collector and the separator is maintained within a predetermined tolerance. The method includes sealing the anode compartment and the cathode compartment.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: April 19, 2022
    Assignee: 24M Technologies, Inc.
    Inventors: Alexander H. Slocum, Tristan Doherty, Ricardo Bazzarella, James C. Cross, III, Pimpa Limthongkul, Mihai Duduta, Jeffry Disko, Allen Yang, Throop Wilder, William Craig Carter, Yet-Ming Chiang
  • Publication number: 20220064063
    Abstract: Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described.
    Type: Application
    Filed: January 16, 2020
    Publication date: March 3, 2022
    Applicant: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Leah Ellis, Andres Badel
  • Publication number: 20220029207
    Abstract: The present disclosure is generally related to separators for use in lithium metal batteries, and associated systems and products. Certain embodiments are related to separators that form or are repaired when an electrode is held at a voltage. In some embodiments, an electrochemical cell may comprise an electrolyte that comprises a precursor for the separator.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Applicants: Massachusetts Institute of Technology, Carnegie Mellon University, 24M Technologies, Inc.
    Inventors: Yet-Ming Chiang, Venkatasubramanian Viswanathan, Linsen Li, Vikram Pande, Dilip Krishnamurthy, Zeeshan Ahmad, William Henry Woodford
  • Publication number: 20220021019
    Abstract: Embodiments described herein relate generally to devices, systems and methods of producing high energy density batteries having a semi-solid cathode that is thicker than the anode. An electrochemical cell can include a positive electrode current collector, a negative electrode current collector and an ion-permeable membrane disposed between the positive electrode current collector and the negative electrode current collector. The ion-permeable membrane is spaced a first distance from the positive electrode current collector and at least partially defines a positive electroactive zone. The ion-permeable membrane is spaced a second distance from the negative electrode current collector and at least partially defines a negative electroactive zone. The second distance is less than the first distance.
    Type: Application
    Filed: February 23, 2021
    Publication date: January 20, 2022
    Applicant: 24M Technologies, Inc.
    Inventors: Taison TAN, Yet-Ming CHIANG, Naoki OTA, Throop WILDER, Mihai DUDUTA
  • Publication number: 20220008991
    Abstract: A furnace may include an outer wall defining a chamber, the chamber including an internal cavity configured to receive one or more parts, at least one heater positioned within the chamber, the at least one heater being configured to generate temperatures of at least about 800 degrees Celsius within the internal cavity, and a vacuum pump configured to apply a vacuum to at least a portion of the chamber. The furnace may also include at least one layer of inner insulation and at least one layer of outer insulation disposed outward of the inner insulation with respect to the chamber, the at least one layer of outer insulation being sealed with respect to the at least one layer of inner insulation.
    Type: Application
    Filed: February 11, 2020
    Publication date: January 13, 2022
    Applicant: Desktop Metal, Inc.
    Inventors: Nathan Woodard, Jonah Samuel Myerberg, Emanuel M Sachs, Richard Remo Fontana, Robert Edward Weiss, Yet-Ming Chiang, Stephen Dipietro, Nicholas Graham Bandiera
  • Publication number: 20210359291
    Abstract: Materials, designs, and methods of fabrication for electrodes for electrochemical cells are disclosed. In various embodiments, the electrode comprises iron. Various embodiments may include materials, systems, and methods for the use of various iron-bearing materials, starting from the discharged or partially discharged state in an alkaline electrochemical cell, such as an Fe—Ni, Fe—MnO2, or Fe-air battery. Various embodiments may include a battery comprising an electrode comprising iron. In various embodiments, the iron may be in various forms, such as iron ore, iron concentrate, iron pellets, BF grade pellets, DR grade pellets, hematite, magnetite, wustite, martite, goethite, limonite, siderite, pyrite, ilmenite, spinel manganese ferrite, etc. In various embodiments, the iron may include impurity phases, such as SiO2, CaO, etc.
    Type: Application
    Filed: May 6, 2021
    Publication date: November 18, 2021
    Inventors: Michael Andrew GIBSON, Yet-Ming CHIANG, William Henry WOODFORD
  • Publication number: 20210336245
    Abstract: Systems and methods of the various embodiments may provide porous materials for electrodes of electrochemical energy storage systems.
    Type: Application
    Filed: April 21, 2021
    Publication date: October 28, 2021
    Inventors: Michael Andrew GIBSON, Annelise Christine THOMPSON, William Henry WOODFORD, Yet-Ming CHIANG
  • Patent number: 11145909
    Abstract: The present disclosure is generally related to separators for use in lithium metal batteries, and associated systems and products. Certain embodiments are related to separators that form or are repaired when an electrode is held at a voltage. In some embodiments, an electrochemical cell may comprise an electrolyte that comprises a precursor for the separator.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: October 12, 2021
    Assignees: Massachusetts Institute of Technology, Carnegie Mellon University, 24M Technologies, Inc.
    Inventors: Yet-Ming Chiang, Venkatasubramanian Viswanathan, Linsen Li, Vikram Pande, Dilip Krishnamurthy, Zeeshan Ahmad, William Henry Woodford
  • Patent number: 11094976
    Abstract: Embodiments described herein relate generally to methods for the remediation of electrochemical cell electrodes. In some embodiments, a method includes obtaining an electrode material. At least a portion of the electrode material is rinsed to remove a residue therefrom. The electrode material is separated into constituents for reuse.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: August 17, 2021
    Assignee: 24M Technologies, Inc.
    Inventors: Yet-Ming Chiang, William Woodford, Hiuling Zoe Yu
  • Publication number: 20210249678
    Abstract: Embodiments described herein relate generally to electrochemical cells having high rate capability, and more particularly to devices, systems and methods of producing high capacity and high rate capability batteries having relatively thick semi-solid electrodes. In some embodiments, an electrochemical cell includes an anode and a semi-solid cathode. The semi-solid cathode includes a suspension of an active material of about 35% to about 75% by volume of an active material and about 0.5% to about 8% by volume of a conductive material in a non-aqueous liquid electrolyte. An ion-permeable membrane is disposed between the anode and the semi-solid cathode. The semi-solid cathode has a thickness of about 250 ?m to about 2,000 ?m, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm2 at a C-rate of C/4. In some embodiments, the semi-solid cathode slurry has a mixing index of at least about 0.9.
    Type: Application
    Filed: April 26, 2021
    Publication date: August 12, 2021
    Applicant: 24M Technologies, Inc.
    Inventors: Yet-Ming CHIANG, Mihai DUDUTA, Richard K. HOLMAN, Pimpa LIMTHONGKUL, Taison TAN
  • Patent number: 11018365
    Abstract: Embodiments described herein relate generally to electrochemical cells having high rate capability, and more particularly to devices, systems and methods of producing high capacity and high rate capability batteries having relatively thick semi-solid electrodes. In some embodiments, an electrochemical cell includes an anode and a semi-solid cathode. The semi-solid cathode includes a suspension of an active material of about 35% to about 75% by volume of an active material and about 0.5% to about 8% by volume of a conductive material in a non-aqueous liquid electrolyte. An ion-permeable membrane is disposed between the anode and the semi-solid cathode. The semi-solid cathode has a thickness of about 250 ?m to about 2,000 ?m, and the electrochemical cell has an area specific capacity of at least about 7 mAh/cm2 at a C-rate of C/4. In some embodiments, the semi-solid cathode slurry has a mixing index of at least about 0.9.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: May 25, 2021
    Assignee: 24M Technologies, Inc.
    Inventors: Yet-Ming Chiang, Mihai Duduta, Richard K. Holman, Pimpa Limthongkul, Taison Tan
  • Patent number: 10992003
    Abstract: An electrochemical apparatus includes a catholyte, an anolyte, and a separator disposed between the catholyte and the anolyte. The catholyte includes metal salt dissolved in water, thereby providing at least one metal ion. The anolyte includes a polysulfide solution. The separator is permeable to the at least one metal ion. During a charging process of the electrochemical apparatus, oxygen is generated in the catholyte, the polysulfide in the polysulfide solution undergoes a reduction reaction in the anolyte, and the at least one metal ion moves from the catholyte to the anolyte. During a discharging process of the apparatus, the oxygen is consumed in the catholyte, the polysulfide oxidizes in the anolyte, and the at least one metal ion moves from the anolyte to the catholyte.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: April 27, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Liang Su, Zheng Li, Yet-Ming Chiang, Menghsuan Sam Pan
  • Publication number: 20210119489
    Abstract: Described herein are techniques that increase the charging and/or discharging rate of a rechargeable battery, at least in part, by using frequency modulated (FM) signals having a frequency in the megahertz (MHz) frequency range. In some embodiments, the MHz frequency range may include any frequency between 0.1 MHz and 1 gigahertz (GHz). In some embodiments, a battery charger described herein may be configured to generate and transmit, to a battery, an FM signal modulated over a frequency range during a period of time, the FM signal having a frequency of at least 0.5 MHz during at least a first portion of the period of time. In some embodiments, a method described herein includes transmitting an FM signal modulated over a frequency range during a period of time and having a frequency of at least 0.5 MHz during at least a first portion of the period of time to a battery.
    Type: Application
    Filed: August 17, 2020
    Publication date: April 22, 2021
    Applicant: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Bohua Wen
  • Patent number: 10964973
    Abstract: Embodiments described herein relate generally to devices, systems and methods of producing high energy density batteries having a semi-solid cathode that is thicker than the anode. An electrochemical cell can include a positive electrode current collector, a negative electrode current collector and an ion-permeable membrane disposed between the positive electrode current collector and the negative electrode current collector. The ion-permeable membrane is spaced a first distance from the positive electrode current collector and at least partially defines a positive electroactive zone. The ion-permeable membrane is spaced a second distance from the negative electrode current collector and at least partially defines a negative electroactive zone. The second distance is less than the first distance.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: March 30, 2021
    Assignee: 24M Technologies, Inc.
    Inventors: Taison Tan, Yet-Ming Chiang, Naoki Ota, Throop Wilder, Mihai Duduta
  • Publication number: 20210028452
    Abstract: Materials, designs, and methods of fabrication for iron-manganese oxide electrochemical cells are disclosed. In various embodiments, the negative electrode is comprised of pelletized, briquetted, or pressed iron-bearing components, including metallic iron or iron-based compounds (oxides, hydroxides, sulfides, or combinations thereof), collectively called “iron negative electrode.” In various embodiments, the positive electrode is comprised of pelletized, briquetted, or pressed manganese-bearing components, including manganese (IV) oxide (MnO2), manganese (III) oxide (Mn2O3), manganese (III) oxyhydroxide (MnOOH), manganese (II) oxide (MnO), manganese (II) hydroxide (Mn(OH)2), or combinations thereof, collectively called “manganese oxide positive electrode.” In various embodiments, electrolyte is comprised of aqueous alkali metal hydroxide including lithium hydroxide (LiOH), sodium hydroxide (NaOH), potassium hydroxide (KOH), cesium hydroxide (CsOH), or combinations thereof.
    Type: Application
    Filed: July 25, 2020
    Publication date: January 28, 2021
    Inventors: Liang SU, Jarrod David MILSHTEIN, William Henry WOODFORD, Yet-Ming CHIANG, Jay WHITACRE, Lucas COHEN, Rupak CHAKRABORTY, Andrew Haynes LIOTTA, Ian Salmon MCKAY, Thomas CONRY, Michael Andrew GIBSON, Jocelyn Marie NEWHOUSE, Amelie Nina KHAREY, Annelise Christine THOMPSON, Weston SMITH, Joseph Anthony PANTANO, Isabella CARUSO, Benjamin Thomas HULTMAN, Max Rae CHU, Nicholas PERKINS, Florian WEHNER, Rebecca EISENACH, Mitchell Terrance WESTWOOD, Tristan GILBERT, Rachel Elizabeth MUMMA, Brandon UBER, Eric WEBER, Danielle Cassidy SMITH, Brooke WOJESKI