This product is designed for safely storing and transporting documents, power banks, and lithium batteries during testing in explosion-proof cabinets. Constructed from high-silica fiber cloth and liquid silicone in a multi-layer composite, it withstands continuous temperatures up to 1300°C and resists instantaneous flame jets reaching 1400°C. The bag provides complete containment of fire, debris, and explosion shock, preventing flame spread to neighboring items without emitting toxic gases. It remains lightweight at under 300 g when folded and is reusable—simply removing residue and wiping clean, which reduces long-term costs significantly. Available in multiple sizes to accommodate different research or storage needs, this consumable offers a practical, high-temperature barrier solution for battery safety and material handling in laboratory environments.