Patents Assigned to Dragonfly Energy Corp.
  • Patent number: 11967696
    Abstract: The invention is directed to a process for forming a particle film on a substrate. Preferably, a series of corona guns, staggered to optimize film thickness uniformity, are oriented on both sides of a slowly translating grounded substrate (copper or aluminum for the anode or cathode, respectively). The substrate is preferably slightly heated to induce binder flow, and passed through a set of hot rollers that further induce melting and improve film uniformity. The sheeting is collected on a roll or can be combined in-situ and rolled into a single-cell battery. The invention is also directed to products formed by the processes of the invention and, in particular, batteries.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: April 23, 2024
    Assignee: Dragonfly Energy Corp.
    Inventors: Denis Phares, Justin S. Ferranto
  • Publication number: 20230420204
    Abstract: Thermal fuses and related methods of operation are disclosed. In some embodiments, a thermal fuse may include an insulating component and two electrodes operatively connected to the insulating component. Based on a difference in the thermal coefficients of expansion, the insulating component may expand axially relative to the electrodes with increasing temperature. As the insulating component expands the two electrodes may be moved axially apart to transition between an open and closed configuration. In some embodiments, the thermal fuse may transition between the open and closed configuration depending on whether or not an operating temperature of the thermal fuse is above or below a threshold temperature.
    Type: Application
    Filed: June 23, 2023
    Publication date: December 28, 2023
    Applicant: Dragonfly Energy Corp.
    Inventors: Bayartsetseg Hopkins, Ryan Hopkins
  • Patent number: 11735704
    Abstract: Methods of forming encapsulated electrochemical and/or ionically conducting particles as their use in manufacturing electrochemical cells are described.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: August 22, 2023
    Assignee: Dragonfly Energy Corp.
    Inventor: Denis Phares
  • Publication number: 20230246225
    Abstract: Powderized solid-state electrolytes and electroactive materials as well as related methods of manufacturing and use are disclosed. In one embodiment, an ionically conductive powder comprises a plurality of ionically conductive particles. The ionically conductive particles may comprise an ionically conductive salt dissolved in a thermoplastic polymer, with optional components (e.g., electroactive and/or inorganic solid particles) dispersed within. Related methods of producing these ionically conductive powders are also disclosed including, but are not limited to, low-temperature milling, spray drying, and aerosol polymerization. Embodiments related to using the resultant ionically conductive powders in a spray deposition process are also described.
    Type: Application
    Filed: January 30, 2023
    Publication date: August 3, 2023
    Applicant: Dragonfly Energy Corp.
    Inventors: Denis Phares, Jordan Dargert, Gabriel Stehling Vieira Martins, Vickram Singh, Patrick Stampfli
  • Publication number: 20230170459
    Abstract: Methods of forming encapsulated electrochemical and/or ionically conducting particles as well as their use in manufacturing electrochemical cells are described.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 1, 2023
    Applicant: Dragonfly Energy Corp.
    Inventor: Denis Phares
  • Publication number: 20230170725
    Abstract: Systems, methods and devices for managing power systems and energy storage devices, such as a rechargeable batteries, at operational temperature limits of the energy storage device. The systems control the operation of a charging device in a low temperature operating mode below a charging low temperature limit of the energy storage device at which the energy storage device may be damaged or dangerous if in a charging state. The system controls a current output of the charging device to provide at least some of the power required to power a heater which heats the energy storage device while at the same time avoiding the energy storage device going into a charging state, based on the one or more sensor signals.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Applicant: Dragonfly Energy Corp.
    Inventor: William A. Thomason
  • Publication number: 20230096878
    Abstract: A power charging system for a towing vehicle and towed vehicle combination for transferring high charging power from a charging device in the towing vehicle to an energy storage device on the towed vehicle. The power charging system is capable of safely transferring at least 1 kW of charging power. The power charging system includes a controller and sensors operably coupled to the controller via a communication system for safely powering the system when needed to charge the energy storage device, and safely de-powering the system prior to disconnecting the high-power charging circuit between the towing vehicle and the energy storage device.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 30, 2023
    Applicant: Dragonfly Energy Corp.
    Inventor: William A. Thomason
  • Publication number: 20230033696
    Abstract: A system for forming a particle layer on a substrate may include at least one sprayer and at least two masks configured to selectively mask a substrate in a first region and second region of the substrate. The at least one sprayer may be configured to spray particles at the substrate, where the at least two masks maintain the first region and second region substantially free of the deposited material. A heater may be employed to heat the substrate as the particles are sprayed by the at least one sprayer onto the substrate.
    Type: Application
    Filed: October 7, 2022
    Publication date: February 2, 2023
    Applicant: Dragonfly Energy Corp.
    Inventor: Denis Phares
  • Publication number: 20220407129
    Abstract: Embodiments of a device and methods to operating the same are described that can provide high level status information about a battery having multiple modular battery packs which may be arranged in different numbers and/or electrical configurations depending on the specific application. In some embodiments, a smart hub is in communication with battery packs within the battery and configured to selectively query low level status information associated with individual battery packs based on a stored pack configuration that can be updated by a user. The device allows more efficient provision of battery information during flexible assembly and connection of the battery packs.
    Type: Application
    Filed: December 18, 2020
    Publication date: December 22, 2022
    Applicant: Dragonfly Energy Corp.
    Inventor: Denis Phares
  • Patent number: 11491508
    Abstract: A system for forming a particle layer on a substrate may include at least one sprayer and at least two masks configured to selectively mask a substrate in a first region and second region of the substrate. The at least one sprayer may be configured to spray particles at the substrate, where the at least two masks maintain the first region and second region substantially free of the deposited material. A heater may be employed to heat the substrate as the particles are sprayed by the at least one sprayer onto the substrate.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: November 8, 2022
    Assignee: Dragonfly Energy Corp.
    Inventor: Denis Phares
  • Publication number: 20220069337
    Abstract: Powderized solid-state electrolytes and electroactive materials as well as related methods of manufacturing and use are disclosed. In one embodiment, an ionically conductive powder comprises a plurality of ionically conductive particles. The ionically conductive particles may comprise an ionically conductive salt dissolved in a thermoplastic polymer, with optional components (e.g.,electroactive and/or inorganic solid particles) dispersed within. Related methods of producing these ionically conductive powders are also disclosed including, but are not limited to, low-temperature milling, spray drying, and aerosol polymerization. Embodiments related to using the resultant ionically conductive powders in a spray deposition process are also described.
    Type: Application
    Filed: August 11, 2021
    Publication date: March 3, 2022
    Applicant: Dragonfly Energy Corp.
    Inventors: Denis Phares, Jordan Dargert, Gabriel Stehling Vieira Martins, Vickram Singh, Patrick Stampfli
  • Publication number: 20210167354
    Abstract: Methods of forming encapsulated electrochemical and/or ionically conducting particles as well as their use in manufacturing electrochemical cells are described.
    Type: Application
    Filed: February 12, 2021
    Publication date: June 3, 2021
    Applicant: Dragonfly Energy Corp.
    Inventor: Denis Phares
  • Publication number: 20210104722
    Abstract: The invention is directed to a process for forming a particle film on a substrate. Preferably, a series of corona guns, staggered to optimize film thickness uniformity, are oriented on both sides of a slowly translating grounded substrate (copper or aluminum for the anode or cathode, respectively). The substrate is preferably slightly heated to induce binder flow, and passed through a set of hot rollers that further induce melting and improve film uniformity. The sheeting is collected on a roll or can be combined in-situ and rolled into a single-cell battery. The invention is also directed to products formed by the processes of the invention and, in particular, batteries.
    Type: Application
    Filed: December 16, 2020
    Publication date: April 8, 2021
    Applicant: Dragonfly Energy Corp
    Inventors: Denis Phares, Justin S. Ferranto
  • Patent number: 10897037
    Abstract: The invention is directed to a process for forming a particle film on a substrate. Preferably, a series of corona guns, staggered to optimize film thickness uniformity, are oriented on both sides of a slowly translating grounded substrate (copper or aluminum for the anode or cathode, respectively). The substrate is preferably slightly heated to induce binder flow, and passed through a set of hot rollers that further induce melting and improve film uniformity. The sheeting is collected on a roll or can be combined in-situ and rolled into a single-cell battery. The invention is also directed to products formed by the processes of the invention and, in particular, batteries.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: January 19, 2021
    Assignee: Dragonfly Energy Corp.
    Inventors: Denis Phares, Justin S. Ferranto
  • Publication number: 20200365872
    Abstract: A system for forming a particle layer on a substrate may include at least one sprayer and at least two masks configured to selectively mask a substrate in a first region and second region of the substrate. The at least one sprayer may be configured to spray particles at the substrate, where the at least two masks maintain the first region and second region substantially free of the deposited material. A heater may be employed to heat the substrate as the particles are sprayed by the at least one sprayer onto the substrate.
    Type: Application
    Filed: May 14, 2020
    Publication date: November 19, 2020
    Applicant: Dragonfly Energy Corp.
    Inventor: Denis Phares
  • Publication number: 20190252668
    Abstract: Methods of forming encapsulated electrochemical and/or ionically conducting particles as their use in manufacturing electrochemical cells are described.
    Type: Application
    Filed: February 14, 2018
    Publication date: August 15, 2019
    Applicant: Dragonfly Energy Corp.
    Inventor: Denis Phares
  • Patent number: D930573
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: September 14, 2021
    Assignee: Dragonfly Energy Corp.
    Inventors: Doug Stadler, Evan Humphreys, Sean Nichols, Denis Phares
  • Patent number: D971827
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: December 6, 2022
    Assignee: Dragonfly Energy Corp.
    Inventor: Bayartsetseg Hopkins
  • Patent number: D997092
    Type: Grant
    Filed: October 27, 2022
    Date of Patent: August 29, 2023
    Assignee: Dragonfly Energy Corp.
    Inventor: Bayartsetseg Hopkins
  • Patent number: D1022878
    Type: Grant
    Filed: July 20, 2023
    Date of Patent: April 16, 2024
    Assignee: Dragonfly Energy Corp.
    Inventor: Bayartsetseg Hopkins