Patent ID: 9093726
Filing Date: 2015-07-28
Classification: G05D,H01M,Y02E

Abstract:
1. 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; 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; a fluid reservoir coupled to said at least one conduit; a fluid pump coupled to said at least one conduit, wherein said fluid pump pumps said fluid from said fluid reservoir through said conduit; a fluid pump activation subsystem comprising at least one pressure sensor, wherein said at least one pressure sensor monitors a fluid pressure within said at least one conduit and outputs a pump activation signal when said fluid pressure falls below a preset pressure, wherein said fluid pressure falling below said preset pressure is indicative of said breach forming within said at least one conduit; and a system controller coupled to said fluid pump and to said at least one pressure sensor, wherein said system controller is programmed to activate said fluid pump in response to said system controller receiving said pump activation signal from said at least one pressure sensor when said fluid pressure falls below said preset pressure.