Passive Safety Device and Internal Short Tested Method for Energy Storage Cells and Systems

Matthew Keyser (Inventor), Ahmad Pesaran (Inventor), Eric Darcy (Inventor)

Research output: Patent

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. 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.
Original languageAmerican English
Patent number9,142,829 B2
Filing date22/09/15
StatePublished - 2015

NREL Publication Number

  • NREL/PT-5400-65249

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