Chem. Commun., 2025, Accepted Manuscript DOI: 10.1039/D5CC04106F, Communication Jingdong Yan, Jie Xue, Jianmin Li, Shan Yang, Chang Xu, Long Qin, Xing Fan This work presents a hair-thin fiber-shaped aqueous rechargeable Zn-ion battery, with a recorded-thin diameter of <0.1 mm but a high energy density of >101 mWh·cm-3, by designing an axial alternating...