Battery pack design and method
AssigneeHAPSMobile Inc.
InventorsPeter DELIOUSSINE, Brian JENSEN
Life of this patent
Estimating the term…
Abstract
In at least one embodiment, provided is a battery pack for a vehicle including a thin firebox for enclosing batteries and containing thermal runaway gases, thermal insulation surrounding the firebox, and a vent hole extending through the firebox and the thermal insulation to an exterior of the vehicle with vent hole plug and a pressure relief frangible vent cover at least partially covering the vent hole plug to retain it within the vent hole.
Claims20
A battery pack for a vehicle, the battery pack comprising:
- a) a thin firebox for enclosing batteries and containing thermal runaway gases;
- b) thermal insulation surrounding the firebox;
- c) a vent hole extending through the firebox and the thermal insulation to an exterior of the vehicle;
- d) a vent hole plug;
- and
- e) a pressure relief frangible vent cover at least partially covering the vent hole plug to retain it within the vent hole.
A battery pack thermal runaway vent cover structure comprising:
- a) a frangible flexure comprising a vent plug cover portion and a weakened region;
- and
- b) a pad portion surrounding the frangible flexure, the pad portion being separated from the vent plug cover portion by a gap between the vent plug cover portion and the pad portion, the pad portion being connected to the frangible flexure by the weakened region.
A method for fabricating a battery pack thermal runaway vent cover structure, the method comprising:
- a) forming a vent hole cover partially separated from a mounting portion;
- and
- b) forming a weakened region between the vent hole cover and the mounting portion.
Dependencies are inferred from the claim text.