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AssigneeSpear Power Systems, LLC
InventorsMitch Mabrey, Jamie Andes, Rick Kehler, Shane Corlman, Joe Meehan, Eliot Myers
Estimating the term…
Apparatus for mitigating propagation of thermal events between battery cells within a battery module assembly (10) is provided. The apparatus comprises one or more of several features that function to prevent a runaway thermal event within one battery cell (48) from triggering a fire or other thermal event within another battery cell within the battery module assembly (10). The apparatus may comprise one or more of: (i) a compressive wrap (88) applied to a battery cell (48); (ii) a layered barrier material (104) positioned between adjacent battery cells (48); (iii) silicone rubber supports (94) positioned adjacent the battery terminals (62, 64), (iv) a light-weight, fire-resistant housing composite panel, and (v) rupturable diaphragms (36) configured to vent gases and ejecta from a battery cell undergoing a thermal event.
A battery module assembly comprising a battery module housing configured to house a plurality of battery cells, the battery module housing comprising at least one composite panel comprising an outboard metallic or non-metallic structural layer, an inboard layer of an FR4-rated sheet material, and at least one graphitic carbon sheet positioned therebetween, wherein the composite panel defines at least in part a passageway configured to conduct a flow of ejecta and gas from a thermal event associated with one or more battery cells within the battery module housing toward an outlet formed in the housing.
Dependencies are inferred from the claim text.