It remains a great challenge for aqueous zinc-ion batteries to work at subzero temperatures, since the water in aqueous electrolytes would freeze and inhibit the transportation of electrolyte ions, inevitably leading to performance deterioration. In this work, we propose an anti-freezing gel electrolyte that contains polyacrylamide, graphene oxide, and ethylene glycol. The graphene oxide can not only enhance the mechanical properties of gel electrolyte but also help construct a three-dimensional macroporous network that facilitates ionic transport, while the ethylene glycol can improve freezing resistance. Due to the synergistic effect, the gel electrolyte exhibits high ionic conductivity (e.g., 14.9 mS cm⁻¹ at −20 °C) and good mechanical properties in comparison with neat polyacrylamide gel electrolyte. Benefiting from that, the assembled flexible quasi-solid-state Zn-MnO₂ battery exhibits good electrochemical durability and superior tolerance to extreme working conditions. This work provides new perspectives to develop flexible electrochemical energy storage devices with great environmental adaptability.

水性锌离子电池在零下温度下工作仍然是一个巨大的挑战，因为水性电解质中的水会冻结并抑制电解质离子的传输，不可避免地导致性能恶化。在这项工作中，我们提出了一种含有聚丙烯酰胺、氧化石墨烯和乙二醇的防冻凝胶电解质。氧化石墨烯不仅可以增强凝胶电解质的机械性能，还可以帮助构建有利于离子传输的三维大孔网络，而乙二醇可以提高抗冻性。由于协同效应，与纯聚丙烯酰胺凝胶电解质相比，凝胶电解质表现出高离子电导率（例如，-20℃下为14.9 mS cm ^{-1 ）和良好的机械性能。}受益于此，组装的柔性准固态Zn-MnO ₂电池表现出良好的电化学耐久性和对极端工作条件的优异耐受性。这项工作为开发具有良好环境适应性的柔性电化学储能装置提供了新的视角。