{
  "$type": "site.standard.document",
  "description": "A vent for an electric vehicle battery pack configured to transition from a venting, open position to a sealed, closed position in the event of a thermal event experienced by the electric vehicle battery pack, thereby trapping the gasses within the electric vehicle battery pack, including a curved…",
  "path": "/patents/1344329",
  "publishedAt": "2023-05-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M50/375",
    "Polestar Performance AB"
  ],
  "textContent": "A vent for an electric vehicle battery pack configured to transition from a venting, open position to a sealed, closed position in the event of a thermal event experienced by the electric vehicle battery pack, thereby trapping the gasses within the electric vehicle battery pack, including a curved disc shaped and sized to selectively seal an aperture defined by the electric vehicle battery pack, the curved disc formed of a first material on a first major surface of the disc, and a second material positioned on an opposing second major surface of the disc, the first material having a larger coefficient of thermal expansion than the second material, such that an increase in temperature above a defined threshold experienced by the curved disc causes the first material to expand more than the second material, thereby transitioning the curved disc from a first equilibrium state to a second equilibrium state.",
  "title": "MECHANICAL VENT FOR BATTERY PACK"
}