Patents by Inventor Eric Darcy

Eric Darcy 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).

  • Laser-based method and system for triggering thermal runaway of a battery
    Patent number: 12174259
    Abstract: A method for testing a battery cell includes directing a laser radiation from a laser at a radiation-receiving location on a can of the battery cell to trigger a thermal runaway event. A power, a wavelength, and a beam size of the laser radiation are selected based on a test stability of the battery cell when triggering the thermal runaway event. The test stability includes a likelihood that the can will breach in response to triggering the thermal runaway event. The method also includes ceasing to contact the radiation-receiving location with the laser radiation in response to the thermal runaway event.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: December 24, 2024
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Angad Mehrotra, John J. Darst, Eric Darcy, Romil Patil, Safan Abbasi
  • Passive safety device and internal short tested method for energy storage cells and systems
    Patent number: 9142829
    Abstract: A passive safety device for an energy storage cell for positioning between two electrically conductive layers of the energy storage cell. The safety device also comprising a separator and a non-conductive layer. A first electrically conductive material is provided on the non-conductive layer. A first opening is formed through the separator between the first electrically conductive material and one of the electrically conductive layers of the energy storage device. A second electrically conductive material is provided adjacent the first electrically conductive material on the non-conductive layer, wherein a space is formed on the non-conductive layer between the first and second electrically conductive materials. A second opening is formed through the non-conductive layer between the second electrically conductive material and another of the electrically conductive layers of the energy storage device.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: September 22, 2015
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Matthew Keyser, Eric Darcy, Dirk Long, Ahmad Pesaran
  • Passive Safety Device and Internal Short Tested Method for Energy Storage Cells and Systems
    Publication number: 20130209841
    Abstract: A passive safety device for an energy storage cell for positioning between two electrically conductive layers of the energy storage cell The safety device also comprising a separator and a non-conductive layer. A first electrically conductive material is provided on the non-conductive layer. A first opening is formed through the separator between the first electrically conductive material and one of the electrically conductive layers of the energy storage device. A second electrically conductive material is provided adjacent the first electrically conductive material on the non-conductive layer, wherein a space is formed on the non-conductive layer between the first and second electrically conductive materials. A second opening is formed through the non-conductive layer between the second electrically conductive material and another of the electrically conductive layers of the energy storage device.
    Type: Application
    Filed: October 27, 2010
    Publication date: August 15, 2013
    Applicant: ALLIANCE FOR SUSTAINABLE ENERGY, LLC
    Inventors: Matthew Keyser, Eric Darcy, Dirk Long, Ahmad Pesaran