Active Thermal Runaway Mitigation System for Use Within a Battery Pack
AssigneeTesla Motors, Inc.
InventorsAlex Prilutsky, Weston Arthur Hermann
Life of this patent
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Abstract
An active thermal runaway mitigation system is provided that mitigates the effects of a single cell undergoing thermal runaway, thereby preventing the propagation of the thermal runaway event to neighboring cells within the battery pack. The provided system includes at least one, fluid-containing conduit in proximity to the cells within the battery pack. The conduit includes a plurality of breach points in proximity to the subset of cells, where each breach point is configured to form a breach at a preset temperature that is lower than the melting temperature of the conduit. Once a breach is formed, the fluid contained within the conduit is discharged through the breach.
Claims21
A thermal runaway mitigation system, comprising:
- a battery pack enclosure;
- a plurality of cells contained within said battery pack enclosure;
- at least one conduit in proximity to at least a subset of said plurality of cells, wherein said at least one conduit is comprised of a material with a first melting temperature;
- a fluid contained within said at least one conduit;
- and
- a plurality of breach points within said at least one conduit, wherein said plurality of breach points are in proximity to said subset of said plurality of cells, and wherein each of said plurality of breach points is configured to form a breach at a preset temperature, wherein said preset temperature is lower than said first melting temperature, and wherein a portion of said fluid is discharged through said breach when said breach is formed at said preset temperature.
(canceled)
Dependencies are inferred from the claim text.