Flint's Paper Battery is a rechargeable cellulose-based battery built with no lithium, nickel, or cobalt. It delivers 226 Wh/kg energy density and the cell operates across -20°C to +60°C, flexes up to a 20mm bend radius for over 1,000 cycles without performance degradation, and is compostable at end of life. Manufactured in Singapore using ambient-temperature, water-based processes, it is available for integration into wearables, asset trackers, smart gadgets, and IoT devices.