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As one of the most promising candidates in wearable energy storage devices, aqueous fibrous zinc metal batteries (AFZMBs) remain limited by some severe challenges, such as short life span and unstable capacity performance, etc. In this work, the stability of AFZMB is extended by fabricating an innovative stratified deposition framework (SDF) anode. The as‐prepared SDF electrode can achieve a stratified deposition of Zn metals from the bottom layer to the top layer due to the different overpotentials and binding energy of Zn deposition. Compared with commercial Zn fibers, this dexterous structure provides enough deposition space for Zn metals between the separator and the electrode, dramatically alleviating conventional dendrite puncture and prolonging life expectancy by an order of magnitude. It is found that SDF/AFZMB exhibits a long circulation of 2000 cycles with 89.0% capacity retention at 5 C with superior flexibility, demonstrating potential for application in future wearable electronics. [ABSTRACT FROM AUTHOR]

Keywords: aqueous electrolyte; fibrous zinc battery; flexibility; prolonged cycling; stratified deposition framework EN aqueous electrolyte fibrous zinc battery flexibility prolonged cycling stratified deposition framework 1 1 1 04/29/21 20210428 NES 210428 In article number 2100214, Yagang Yao, Guo Hong and co-workers improve the cycling stability of the aqueous fibrous zinc metal batteries by controlling the zinc deposition priority from bottom to surface in an innovative stratified deposition framework anode, which minimizes the growth of zinc dendrites and boosts the development of wearable devices. Aqueous electrolyte, fibrous zinc battery, flexibility, prolonged cycling, stratified deposition framework Zinc Metal Batteries: Stratified Zinc-Binding Strategy toward Prolonged Cycling and Flexibility of Aqueous Fibrous Zinc Metal Batteries (Adv. [Extracted from the article]