Tough environmentally adaptable energy storage fabrics woven from meter-long fiber-shaped Zn-ion batteries

Wearable electronics are increasingly becoming an integral part of daily life for millions of households as we transition into the metaverse era. However, the limitations imposed by traditional rigid batteries have hindered the progression of wearable technology. Consequently, it is crucial to develop flexible, fiber-shaped batteries and the integrated fabric that ensures stability, safety, high flexibility, and continuous manufacturability. In this study, we present continuously fabricated 10 m fiber-shaped zinc-ion batteries (FZIBs) that exhibit exceptional safety, flexibility and environmental adaptability, durability and electrochemical stability. Notably, after bending 100,000 cycles, the FZIBs retain 76.3 % of their initial specific capacity. Moreover, the FZIBs demonstrate high reliability and practicability by maintaining their specific capacity and normal power supply capabilities under normal states and various extreme states, including bending, twisting, cutting, piercing, immersing in water, wide temperature range of −30 °C to 80 °C, and high vacuum conditions of −0.08 MPa. As a demonstration, energy storage fabrics woven from 10-m-long FZIBs exhibit stable wireless charging capability for wearable electronic watches. The energy storage fabrics maintain stable electrical output at different tough scenarios, highlighting their promising potential applications. 10-m-long fiber-shaped zinc-ion batteries were constructed. The woven energy storage fabrics show remarkable tolerance to various tough conditions, showing great promising for wearable electronics. • 10-m-long fiber-shaped Zn-ion batteries were fabricated. • 76.3 % capacity retention is obtained after 100,000 bending cycles under 1 cm curvature. • Electrochemical performance keeps stable under various tough environment (−30 °C, 80 °C and − 0.08 MPa).