Abstract The rapidly growing demand for wearable and portable electronics has driven the recent revival of flexible Zn‐ion batteries (ZIBs). However, issues dendrite growth low flexibility Zn metal anode still impede their practical application. Herein, 3D nitrogen‐doped vertical graphene nanosheets in situ grown on carbon cloth (N‐VG@CC) are proposed to enable uniform nucleation, thereby obtaining a dendrite‐free robust anode. introduced zincopilic N‐containing groups N‐VG effectively...

Achieving long-term stable zinc anodes at high currents/capacities remains a great challenge for practical rechargeable zinc-ion batteries. Herein, we report an imprinted gradient electrode that integrates conductivity and hydrophilicity dendrite-free The design not only effectively prohibits side reactions between the electrolyte anode, but also synergistically optimizes electric field distribution, ion flux local current density, which induces preferentially deposited in bottom of...

Abstract Aqueous zinc‐ion batteries are highly desirable for sustainable energy storage, but the undesired Zn dendrites growth severely shortens cycle life. Herein, a triple‐gradient electrode that simultaneously integrates gradient conductivity, zincophilicity, and porosity is facilely constructed dendrite‐free anode. The simple mechanical rolling‐induced design effectively optimizes electric field distribution, 2+ ion flux, deposition paths in anode, thus synergistically achieving...

The practical application of electrochemical water splitting has been plagued by the sluggish kinetics bubble generation and slow escape bubbles which block reaction surfaces at high current densities. Here, 3D-printed Ni (3DP Ni) electrodes with a rationally designed periodic structure surface chemistry are reported, where macroscopic ordered pores allow fast evolution emission, while microporosity ensures electrochemically active area (ECSA). When they further loaded MoNi4 NiFe layered...

High-rate and stable Zn-ion batteries working at low temperatures are highly desirable for practical applications, but challenged by sluggish kinetics severe corrosion. Herein, inspired frost-resistant plants, we report trace hydroxyl-rich electrolyte additives that implement a dual remodeling effect high-performance low-temperature batteries. The additive with high Zn absorbability not only remodels

Abstract Zn powder‐based anodes are promising for flexible Zn‐ion batteries with large‐scale production, but the drawbacks such as dendrite growth and side reactions strictly hinder their wide application. Herein, a free‐standing anode gradient particle size porosity is facilely constructed batteries. The design not only optimizes electric field distribution flux also induces ideal bottom‐up deposition top‐down stripping behaviors of Zn, thus suppressing growth. As result, powder can be...

Abstract Stable Zn anodes with high utilization rate are urgently required to promote the specific and volumetric energy densities of Zn‐ion batteries for practical applications. Herein, contrary widely utilized surface coating on anodes, this work shows that a zinc foil backside coated layer delivers much enhanced cycling stability even under depth discharge. The significantly reduces stress concentration, accelerates heat diffusion, facilitates electron transfer, thus effectively...

Zn anodes with double-sided engineering are rationally designed and facilely constructed, which generates a space-confined reversible deposition behavior, thus enabling stable anode working at high depth of discharge energy density.

Abstract Achieving highly efficient self‐powered fibrous sensing systems is desirable for smart electronic textiles but remains a great challenge. Here, bifunctional hydrogel proposed by introducing of polyacrylic acid grafted MXene (MXene‐g‐PAA) into polyacrylamide/chitosan, achieving high‐sensitivity sensor and stable electrolyte battery. The MXene‐g‐PAA flakes act as ion transport “highway”, significantly enhance ionic conductivity, thereby increasing the sensitivity sensors facilitating...

Abstract High‐rate and stable Zn‐ion batteries working at low temperatures are highly desirable for practical applications, but challenged by sluggish kinetics severe corrosion. Herein, inspired frost‐resistant plants, we report trace hydroxyl‐rich electrolyte additives that implement a dual remodeling effect high‐performance low‐temperature batteries. The additive with high Zn absorbability not only remodels 2+ primary solvent shell alternating H 2 O molecules, also forms shielding layer...

A stretchable conducting polymer electrode has been prepared using extrusion 3D printing technology in combination with rational structural patterning, which shows promising mechanical and electrochemical performance.

Abstract Stable Zn anode capable of working at high currents and capacities remains a great challenge. Although construction 3D frameworks can achieve improved cycling properties to some extent, they are usually combined with low energy density, complex fabrication process, cost. Herein, zincophilic foil micropatterns utilizing simple scalable imprinting strategy predesigned mold by femtosecond laser is reported. The induced microchannels enhanced 2+ affinity not only effectively regulate...

Abstract Fiber‐shaped integrated devices are highly desirable for wearable and portable smart electronics, owing to their merits of lightweight, high flexibility, wearability. However, how effectively employ multifunctional fibers in one device that can simultaneously achieve energy storage utilization is a major challenge. Herein, set all derived from vanadium metal‐organic framework nanowires grown on carbon nanotube fiber (V‐MOF NWs@CNT fiber) demonstrated, which be used various...

Abstract Electronic textiles harmoniously interact with the human body and surrounding environment, offering tremendous interest in smart wearable electronics. However, their wide application faces challenges due to lack of stable stretchable power electrodes/devices multifunctional design. Herein, an intrinsically liquid metal‐based fibrous anode for a Zn‐ion battery (ZIB) is reported. Benefiting from feature superior deformability metal, optimized Zn ion concentration distribution (002)...

Although recently developed hybrid zinc (Zn) batteries integrate the benefits of both alkaline Zn and Zn-air batteries, kinetics electrocatalytic oxygen reaction mass transfer electrolyte, which are limited by mismatched disordered multiphase reaction's interfacial channels, considerably inhibit performance batteries. In this work, novel, continuously oriented three-phase channels at cathode derived from natural structure pine wood to address these challenges. A chip is carbonized...

Abstract Zinc powder is promising for rechargeable zinc‐ion batteries due to its low cost and well tunability. However, the corrosion dendrite growth are much more serious in zinc than those conventional foils, which poses a significant obstacle wide utilization. Herein, an ultra‐stable Zn powder‐based anode constructed by coating conformal ion‐conductive hydrogel layer on 3D‐printed scaffolds reported. The interconnected effectively redistributes ion flux homogenizes surface electric field,...

Abstract The practical applications of alkaline zinc‐based batteries are challenged by poor rechargeability with an insufficient zinc utilization ratio. Herein, a sphere‐confined reversible deposition behavior from free‐standing Zn anode is reported, which composed bi‐continuous ZnO‐protected interconnected and hollowed microspheres the Kirkendall effect. cross‐linked network in situ formed outer ZnO shell inner hollow space not only inhibits side reactions but also ensures long‐range...

Abstract Benefiting from the high capacity of Zn metal anodes and intrinsic safety aqueous electrolytes, rechargeable ion batteries (ZIBs) show promising application in post‐lithium‐ion period, exhibiting good safety, low cost, energy density. However, its commercialization still faces problems with Coulombic efficiency unsatisfied cycling performance due to poor Zn/Zn 2+ reversibility that occurred on anode. To improve stability anode, optimizing deposition behavior is an efficient way,...

Iron oxides have been widely recognized in the energy storage field, owing to high theoretical capacitance, low cost, and environmental friendliness. However, intrinsic poor electrical conductivities significantly hindered their practical applications. The rational design of conductive supports is considered an efficient approach solve issues. In this work, a three-dimensional composite structure Fe2O3 nanoneedles grown on N-doped porous carbon nanoarrays that are derived from metal–organic...

3D N-CNT nanoarrays can effectively facilitate stress release and maintain their structural stability. The assembled quasi-solid-state FZHSC exhibits both good flexibility superior electrochemical performance.

Abstract 3D construction of 2D sheets is the key to utilization graphene for large scale industrial applications. The layer by approach additive manufacturing enables a high degree design freedom fabrication structures with excellent mechanical flexibility. Herein, and functional properties nitrogen‐doped (NG) foams fabricated demonstrated via printed templates template‐directed chemical vapor deposition. super‐elastic foam, consisting interconnected networks can make near complete strain...