Small molecule-based supramolecular-polymer double-network hydrogel electrolytes for ultra-stretchable and waterproof Zn–air batteries working from −50 to 100 °C

Herein, we present a highly stretchable (device-level elongation >1000%), waterproof, and wide temperature-tolerant (−50 to 100 °C) wearable Zn–air battery based on a well-designed supramolecular-polymer double-network hydrogel electrolyte.