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This invention describes a battery pack, likely for electric vehicles, that uses a special foam to manage heat. The foam, made from silicone rubber and tiny hollow glass beads, fills spaces within the battery module or covers its cells to prevent overheating from spreading. The claims specifically focus on lithium-ion cells and also include additional heat dissipation and exchange components.
Why it matters: Since 2021, the relentless pursuit of higher energy density in EV batteries has made thermal runaway prevention an even more critical challenge. Advances in manufacturing processes for specialized materials like syntactic foams, as indicated by the C08J classification, might now make this solution more practical for large-scale production.
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