Zhou, Q., Zhang, F., Tan, Z., Wang, T., Qi, D., Bai, J., Liao, T., Sun, Z. (2026). Gradient Hydrogel Electrolyte Enables High Ionic Conductivity and Robust Mechanical Properties for Dendrite‐Free Aqueous Zinc‐Ion Battery. Advanced Materials. https://doi.org/10.1002/adma.202512775