Patents by Inventor David Timothy Andrew Darch

David Timothy Andrew Darch 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: 20220006146
    Abstract: An electrochemical cell that converts chemical energy to electrical energy includes a cathode with an active material of fluorinated carbon on a perforated metal cathode current collector, a lithium anode on a perforated metal anode current collector, a stepped header, a stable electrolyte, and a separator. In various embodiments, an anode current collector design, a cathode current collector design, a stepped header design, a cathode formulation, an electrolyte formulation, a separator, and a battery incorporating the electrochemical cell are provided.
    Type: Application
    Filed: September 21, 2021
    Publication date: January 6, 2022
    Inventors: Dong Zhang, Jason A. Mudge, David Timothy Andrew Darch, Mario Destephen, Ernest Ndzebet, Umamaheswari Janakiraman
  • Patent number: 11217846
    Abstract: An electrochemical cell that converts chemical energy to electrical energy includes a cathode with an active material of fluorinated carbon on a perforated metal cathode current collector, a lithium anode on a perforated metal anode current collector, a stepped header, a stable electrolyte, and a separator. In various embodiments, an anode current collector design, a cathode current collector design, a stepped header design, a cathode formulation, an electrolyte formulation, a separator, and a battery incorporating the electrochemical cell are provided.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: January 4, 2022
    Assignee: EAGLEPICHER TECHNOLOGIES, LLC
    Inventors: Dong Zhang, Jason A Mudge, David Timothy Andrew Darch, Destephen Mario, Ernest Ndzebet, Umamaheswari Janakiraman
  • Publication number: 20210391616
    Abstract: An electrochemical cell that converts chemical energy to electrical energy includes a cathode with an active material of fluorinated carbon on a perforated metal cathode current collector, a lithium anode on a perforated metal anode current collector, a stepped header, a stable electrolyte, and a separator. In various embodiments, an anode current collector design, a cathode current collector design, a stepped header design, a cathode formulation, an electrolyte formulation, a separator, and a battery incorporating the electrochemical cell are provided.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 16, 2021
    Inventors: Dong Zhang, Jason A. Mudge, David Timothy Andrew Darch, Mario Destephen, Ernest Ndzebet, Umamaheswari Janakiraman
  • Publication number: 20210384575
    Abstract: An electrochemical cell that converts chemical energy to electrical energy includes a cathode with an active material of fluorinated carbon on a perforated metal cathode current collector, a lithium anode on a perforated metal anode current collector, a stepped header, a stable electrolyte, and a separator. In various embodiments, an anode current collector design, a cathode current collector design, a stepped header design, a cathode formulation, an electrolyte formulation, a separator, and a battery incorporating the electrochemical cell are provided.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 9, 2021
    Inventors: Dong Zhang, Jason A. Mudge, David Timothy Andrew Darch, Mario Destephen, Ernest Ndzebet, Umamaheswari Janakiraman
  • Publication number: 20210328204
    Abstract: Batteries and methods of using and making batteries are provided. A cell can include a housing; a cathode current collector, in the housing, including a cathode tab and a cathode plate. The cathode tab can include a tab area. The cathode plate can include a plate area and a peripheral edge that surrounds at least a portion of the plate area. The peripheral edge can include a plurality of partial perforations. The plate area can include a plurality of interior perforations. The cell can further include an anode current collector, in the housing, including an anode tab; an anode, in the housing, provided adjacent the anode current collector; and a cathode, in the housing, provided adjacent to the cathode current collector.
    Type: Application
    Filed: April 16, 2020
    Publication date: October 21, 2021
    Applicant: EaglePicher Technologies, LLC
    Inventors: Dong Zhang, Jason A. Mudge, David Timothy Andrew Darch, Mario Destephen, Ernest Ndzebet, Umamaheswari Janakiraman
  • Publication number: 20210328203
    Abstract: The disclosure provides an electrochemical cell that may comprise a housing; a cathode connection, in the housing, that is associated with a cathode; an anode connection, in the housing, that is associated with an anode; an electrolyte; and a header assembly. The header assembly can include a cathode connection assembly; an anode connection assembly; and a stepped header body that includes (a) a first step portion having a first thickness and first step surface, (b) a second step portion having a second thickness and a second step surface, and the first thickness being thicker than the second thickness. The disclosure may also provide systems and methods of making such a cell.
    Type: Application
    Filed: April 20, 2020
    Publication date: October 21, 2021
    Applicant: EaglePicher Technologies, LLC
    Inventors: Dong Zhang, Jason A. Mudge, David Timothy Andrew Darch, Mario Destephen, Ernest Ndzebet
  • Publication number: 20210167349
    Abstract: The disclosure provides a cell that may comprise (1) a housing; (2) an anode current collector, in the housing, including a first connection, and the anode current collector including a first plate with perforations and a second plate with perforations, the anode current collector further including a tab that connects the first plate and the second plate; (3) a cathode current collector, in the housing, including a second connection; (4) a first anode, in the housing, provided between the cathode current collector and the first plate; (5) a second anode, in the housing, provided between the cathode current collector and the second plate; and (6) a cathode, in the housing, provided adjacent to the cathode current collector. The disclosure may also provide systems and methods of making such a cell.
    Type: Application
    Filed: December 3, 2019
    Publication date: June 3, 2021
    Applicant: EaglePicher Technologies, LLC
    Inventors: Dong Zhang, Jason A. Mudge, David Timothy Andrew Darch, Mario Destephen, Ernest Ndzebet, Umamaheswari Janakiraman
  • Publication number: 20210043888
    Abstract: An electrochemical cell that converts chemical energy to electrical energy includes a cathode with an active material of fluorinated carbon on a perforated metal cathode current collector, a lithium anode on a perforated metal anode current collector, a stepped header, a stable electrolyte, and a separator. In various embodiments, an anode current collector design, a cathode current collector design, a stepped header design, a cathode formulation, an electrolyte formulation, a separator, and a battery incorporating the electrochemical cell are provided.
    Type: Application
    Filed: October 23, 2020
    Publication date: February 11, 2021
    Inventors: Dong Zhang, Jason A. Mudge, David Timothy Andrew Darch, Mario Destephen, Ernest Ndzebet, Umamaheswari Janakiraman
  • Publication number: 20180269437
    Abstract: An electrochemical cell that converts chemical energy to electrical energy includes a cathode with an active material of fluorinated carbon on a perforated metal cathode current collector, a lithium anode on a perforated metal anode current collector, a stepped header, a stable electrolyte, and a separator. In various embodiments, an anode current collector design, a cathode current collector design, a stepped header design, a cathode formulation, an electrolyte formulation, a separator, and a battery incorporating the electrochemical cell are provided.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 20, 2018
    Applicant: EaglePicher Technologies, LLC
    Inventors: Dong Zhang, Jason A Mudge, David Timothy Andrew Darch, Destephen Mario, Ernest Ndzebet, Umamaheswari Janakiraman