Abstract Zinc metal anode has garnered a great deal of scientific and technological interest. Nevertheless, major bottlenecks restricting its large‐scale utilization lie in the poor electrochemical stability unsatisfactory cycling life. Herein, Janus separator is developed via directly growing vertical graphene (VG) carpet on one side commercial glass fiber throughout chemical vapor deposition. A simple air plasma treatment further renders successful incorporation oxygen nitrogen heteroatoms...

Abstract Printing is regarded as a revolutionary and feasible technique to guide the fabrication of versatile functional systems with designed architectures. 2D MXenes are nowadays attractive in printed energy storage devices. However, owing van der Waals interaction between MXene layers, restacking issues within electrodes can significantly impede ion/electrolyte transport hence handicap electrochemical performances. Herein, melamine formaldehyde templating method demonstrated develop...

3D printing technology has stimulated a burgeoning interest to fabricate customized architectures in facile and scalable manner targeting wide ranged energy storage applications. Nevertheless, 3D-printed hybrid capacitor devices synergizing favorable energy/power density have not yet been explored thus far. Herein, we demonstrate sodium-ion (SIC) based on nitrogen-doped MXene (N-Ti3C2Tx) anode activated carbon cathode. N-Ti3C2Tx affording well-defined porous structure uniform nitrogen doping...

Abstract Potassium‐ion hybrid capacitors (KICs) reconciling the advantages of batteries and supercapacitors have stimulated growing attention for practical energy storage because high abundance low cost potassium sources. Nevertheless, daunting challenge remains developing high‐performance accommodation materials due to large radius ions. Molybdenum diselenide (MoSe 2 ) has recently been recognized as a promising anode material potassium‐ion batteries, achieving capacity favorable cycling...

Aqueous zinc-ion batteries are regarded as ideal candidates for stationary energy-storage systems due to their low cost and high safety. However, zinc can readily grow into dendrites, leading limited cycling performance quick failure of the batteries. Herein, a novel strategy is proposed mitigate this dendrite problem, in which selectively polarized ferroelectric polymer material (poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE))) employed surface protective layer on anodes. Such...

Abstract Wearable and portable self-powered units have stimulated considerable attention in both the scientific technological realms. However, their innovative development is still limited by inefficient bulky connections between functional modules, incompatible energy storage systems with poor cycling stability, real safety concerns. Herein, we demonstrate a flexible solar-charging integrated unit based on design of printed magnesium ion aqueous asymmetric supercapacitors. This power...

Abstract Functionalizing carbon cathode surfaces with oxygen functional groups is an effective way to simultaneously tailor the fundamental properties and customize electrochemical of aqueous Zn‐ion hybrid capacitors. In this work, chemically reduced graphene oxide (rGO) are systematically regulated via a series reductants varied experimental conductions. Carboxyl carbonyl have been proven significantly enhance electrolyte wettability, chemical adsorption, pseudocapacitive redox activity by...

Ammonium ions (NH4+), as non-metallic charge carriers, have spurred great research interest in the realm of aqueous batteries. Unfortunately, most inorganic host materials used these batteries are still limited by sluggish diffusion kinetics. Here, we report a unique hydrogen bond chemistry to employ covalent organic frameworks (COFs) for NH4+ ion storage, which achieves high capacity 220.4 mAh g-1 at current density 0.5 A g-1. Combining theoretical simulation and analysis, universal...

Abstract Electrolyte design has become ever more important to enhance the performance of lithium‐ion batteries (LIBs). However, flammability issue and high reactivity conventional electrolytes remain a major problem, especially when LIBs are operated at voltage extreme temperatures. Herein, we novel non‐flammable fluorinated ester electrolyte that enables cycling stability in wide‐temperature variations (e.g., −50 °C–60 °C) superior power capability (fast charge rates up 5.0 C) for...

Carbonaceous materials are promising anodes for practical potassium-ion batteries, but fail to meet the requirements durability and high capacities at low potentials. Herein, we constructed a durable carbon anode high-energy-density K-ion full cells by preferential pyrolysis strategy. Utilizing S N volatilization from π-π stacked supermolecule, process introduces low-potential active sites of sp2 hybridized vacancies, endowing "vacancy-adsorption/intercalation" mechanism. The as-prepared...

Lithium–sulfur (Li–S) batteries suffer from rampant polysulfide shuttling and sluggish reaction kinetics, which have curtailed sulfur utilization deteriorated their actual performance. To circumvent these detrimental issues, electrolyte engineering is a reliable strategy to control behavior facilitate kinetics. However, the electrolyte–polysulfide nexus remains elusive, design principle far clear, especially for pragmatic application. In this Review, key approaches obtain kinetically...

The practical application of lithium–sulfur (Li–S) batteries is hindered by their poor cycling stabilities that primarily stem from the "shuttle" dissolved lithium polysulfides. Here, we develop a nepenthes-like N-doped hierarchical graphene (NHG)-based separator to realize an efficient polysulfide scavenger for Li–S batteries. 3D textural porous NHG architectures are realized our designed biotemplating chemical vapor deposition (CVD) approach via employment naturally abundant diatomite as...

Lithium–sulfur (Li–S) batteries are recognized as one of the most promising energy storage systems due to high density and cost effectiveness. However, their practical implementation has still been handicapped notorious lithium polysulfide (LiPS) shuttle depressed sulfur redox kinetics. It is therefore desirable exploit key mediators synergizing electrical conductivity electrocatalytic activity for cathode. Herein, we report employment atmospheric pressure chemical vapor deposition harness...

Mass production of graphene powders affording high quality and environmental benignancy serves as a prerequisite for the practical usage in multiple energy storage applications. Herein, we exploit salt-templated CVD approach to harness direct synthesis nitrogen-doped (NG) nanosheets related ink dispersions scalable, safe, efficient, green fashion. Thus-fabricated NG accompanying large productivity, excellent electrical conductivity, favorable solution processability possesses implications...

Wearable solar charging technologies are evolving rapidly. Nevertheless, insufficient overall efficiency and poor compatibility remain daunting challenges. Here, a unit integrating GaAs cell Zn battery is reported.

Abstract Sulfur‐based batteries are regarded as potent candidates for next‐generation high‐energy and low‐cost energy storage systems. However, sulfur‐based still face substantial obstacles on the cathode side (e.g., low conductivity sluggish reaction kinetics of sulfur) anode dendrite growth), severely hindering their utilization. MXenes (i.e., 2D transition metal carbides, nitrides, carbonitrides), an emerging member material family, possess unique electrochemical electronic properties,...

Aqueous ammonium ion battery is a promising sustainable energy storage system. However, the side reactions originating from electrolytes (the water decomposition and host material dissolution) preclude its practical applications. Unlike metal-based aqueous batteries, idea of "ultrahigh concentrated electrolyte" not feasible due to strong hydrolysis ions. Therefore, we propose an effective strategy for hydrogen bond network modulation by adding sucrose into electrolytes. The can form...

Metal-based anodes (Li, Zn, etc.) are regarded as promising solutions for next-generation advanced batteries due to their high theoretical specific capacities. However, most of these metal suffer from dendrite growth, which severely restricts practical applications. Recently, epitaxial anode deposition by choosing a suitable substrate has received tremendous attention an effective strategy suppress dendrites. the relationship between plated and been subject debate. Herein, large-area,...

Abstract Aqueous magnesium ion‐based batteries have attracted significant research interest due to the two‐electron transfer process, small cation radius, low reduction potential as well inert hydrogen evolution reaction. However, high surface charge density of divalent Mg 2+ ions results in sluggish solid‐state diffusion kinetics, which significantly limits number host materials suitable for effective ion storage. Here, first time, covalent organic frameworks (COFs) are explored high‐rate...

Abstract Along with the increasingly wide application of intelligent electronics, triboelectric nanogenerator (TENG), as a promising sustainable micro‐power source has attracted considerable attention recently. However, most reported research focuses on negative materials, while alternative positive tribo‐layers is still limited. In this study, new highly fluorinated covalent organic framework (COF) Tp‐TFAB successfully synthesized and utilized materials for high‐performance TENGs....

Abstract Aqueous zinc (Zn) ion batteries (AZIBs) are regarded as one of the promising candidates for next‐generation electrochemical energy storage systems due to their low cost, high safety, and environmental friendliness. However, commercialization AZIBs has been severely restricted by growth dendrite at Zn metal anode. Tailoring planar‐structured anodes into three‐dimensional (3D) structures proven be an effective way modulate plating/stripping behavior anodes, resulting in suppression...