This technology is a fireproof structure that maximizes cooling and smothering effects by layering an alkali silicate aqueous solution-based solid gel cooling layer and a flame-retardant coated ceramic felt fire propagation prevention layer to suppress thermal runaway during lithium battery fires.
Lithium battery fires involve high heat and gas discharge, which often cannot be sufficiently cooled by standard extinguishing agents like Class D extinguishers, leading to reignition. Furthermore, it has been difficult to effectively block the chain reaction of thermal runaway that spreads fire to adjacent cells.
This technology uses a solid gel, created by solidifying an alkali silicate aqueous solution with acids and metal salts, housed in a partitioned protective pack to create a continuous cooling and smothering environment. It is combined with an outer layer of ceramic felt and a flame-retardant thermoplastic polymer coating (PVAc, PE, PU, etc.) to increase heat absorption efficiency and prevent fire spread. Applicable to EV battery cell partitions, underground parking garage fire blankets, and laptop/power bank carrying pouches, it suppresses reignition without water and provides critical time for evacuation and suppression.
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