Ronghan Jiang, Tiancun Liu, Song Lu, Yi Ding, Yaling Ji, Xinglin Luo, Anyi Lyu, Xusheng Wang, Min Guo, Zhixin Yu
A zincophilic HOF-coated 3D skeleton was developed for achieving stable zinc anodes. The HOF layer improves hydrophilicity, electrolyte infiltration, and zinc ion dispersion through zincophilic functional groups, suppresses dendrite formation, and lowers nucleation barriers. The dense HOF covering forces uniform zinc growth within interlayer gaps while protecting against electrolyte-induced corrosion. It also facilitates solvation removal and reduces activation energy. Consequently, the HOF-based electrode achieves an ultrahigh coulombic efficiency of 99% at 15 mA cm-2, superior cycling life of over 2000 h at 1 mA cm-2, and outstanding full-cell performance.