Stop the spread of battery fires with a 0.2 mm non-combustible sheet

R-Materials develops “NCS,” an ultra-thin 0.2 mm non-combustible sheet designed to prevent the spread of battery fires. Simply applied to the interior of battery pack covers or electronic device enclosures, it prevents flames from breaching the exterior even if internal cells enter thermal runaway. It withstands 1,200°C flames for over 10 minutes, and in evaluations using the UL 2596 test method by a South Korean client with roughly 1 trillion KRW in annual revenue, it resisted burn-through for up to 9 cycles. Because it is flexible, easy to process, and free of RoHS-restricted substances, it can be integrated into existing product designs with virtually no added thickness or weight. A mass-production capacity of 500,000 m² per month has already been established via OEM. Target applications include battery packs for EVs and ESS, drones, power tools, mobile power banks, and marine interior materials. Having launched a PoC with Japanese companies in August 2026, we are currently seeking PoC partners among battery, EV, and ESS manufacturers, sales and processing partners in Japan, and investors for our Pre-A round.