Alliance for Sustainable Energy, LLC

United States of America As Represented by the Administrator of Nasa

Ahmad Pesaran

Matthew Allen Keyser

John Ireland

Kandler Alan Smith

Jeremy Stephan Neubauer

Gi-Heon Kim

Eric Darcy

Mark Alan Mihalic

Dirk Long

Large volume calorimeters () and small volume, or cell, calorimeters (), as well as methods of making and using the same, are provided.

Calorimeters for testing energy storage systems and power electronics methods of making the same and methods of use

Fail-safe systems and design methodologies for large capacity battery systems are disclosed. The disclosed systems and methodologies serve to locate a faulty cell in a large capacity battery, such as a cell having an internal short circuit, determine whether the fault is evolving, and electrically isolate the faulty cell from the rest of the battery, preventing further electrical energy from feeding into the fault.

Fail-safe designs for large capacity battery systems

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. The first and second electrically conductive materials combine and exit at least partially through the first and second openings to connect the two electrically conductive layers of the energy storage device at a predetermined temperature.

Passive safety device and internal short tested method for energy storage cells and systems

Growing community of inventors

Boulder, CO, United States of America

Ahmad Pesaran