Freeze‐Tolerant Hydrogel Electrolyte with High Strength for Stable Operation of Flexible Zinc‐Ion Hybrid Supercapacitors

) at 20 °C, together with great tolerance to corrosion. Moreover, this device demonstrates a stable electrochemical performance at -20 °C under deformation. The obtained results provide valuable insights for constructing durable hydrogel electrolytes in cold environments.