This review summarizes recent progresses in material and structural designs of zinc anodes for high-performance aqueous zinc-ion batteries.

Abstract Aqueous rechargeable Zn metal batteries have attracted widespread attention due to the intrinsic high volumetric capacity, low cost, and safety. However, Coulombic efficiency limited lifespan of anodes resulting from uncontrollable growth dendrites impede their practical application. In this work, a 3D interconnected ZnF 2 matrix is designed on surface foil (Zn@ZnF ) through simple fast anodic method, serving as multifunctional protective layer. The as‐fabricated Zn@ZnF electrode...

Abstract Rechargeable zinc‐ion batteries (ZIBs) are emerging as a promising alternative for Li‐ion batteries. However, the developed cathodes suffer from sluggish Zn 2+ diffusion kinetics, leading to poor rate capability and inadequate cycle life. Herein, an in situ polyaniline (PANI) intercalation strategy is facilitate (de)intercalation kinetics V 2 O 5 . In this way, remarkably enlarged interlayer distance (13.90 Å) can be constructed alternatively between VO layers, offering expediting...

Abstract Currently, development of suitable cathode materials for zinc‐ion batteries (ZIBs) is plagued by the sluggish kinetics Zn 2+ with multivalent charge in host structure. Herein, it demonstrated that interlayer Mn ‐doped layered vanadium oxide (Mn 0.15 V 2 O 5 · n H O) composites narrowed direct bandgap manifest greatly boosted electrochemical performance as battery cathodes. Specifically, electrode shows a high specific capacity 367 mAh g −1 at current density 0.1 A well excellent...

Conventional ion batteries utilizing metallic ions as the single charge carriers are limited by insufficient abundance of metal resources. Although supercapacitors apply both cations and anions to store energy through absorption and/or Faradic reactions occurring at interfaces electrode/electrolyte, inherent low density hinders its application. The graphite-cathode-based dual-ion battery possesses a higher due high working potential nearly 5 V. However, such configuration suffers from severe...

Abstract The microstructure of a composite electrode determines how individual battery particles are charged and discharged in lithium-ion battery. It is frontier challenge to experimentally visualize and, subsequently, understand the electrochemical consequences particles’ evolving (de)attachment with conductive matrix. Herein, we tackle this issue unique combination multiscale experimental approaches, machine-learning-assisted statistical analysis, experiment-informed mathematical...

Recent emerging rechargeable zinc-ion batteries have inherent benefits of intrinsic battery safety and high elemental abundance reduce pollution toward an environmentally compatible energy storage system. However, the effort promoting aqueous Zn-ion for large-scale applications is greatly plagued by activity water molecules. The molecules remains a threat to batteries, leading premature failure Zn anode, cathode dissolution, inferior low-temperature performance. Recently, wide spectrum...

We apply direct ink writing for the three-dimensional (3D) printing of polyaniline/reduced graphene oxide (PANI/RGO) composites with PANI/graphene (PANI/GO) gel as printable inks. The PANI/GO inks 3D are prepared via self-assembly PANI and GO in a blend solvent N-methyl-2-pyrrolidinone water, offer both shaping capability, self-sustainability, electrical conductivity after reduction GO. PANI/RGO interdigital electrodes fabricated printing, based on these electrodes, planar solid-state...

Abstract Rechargeable zinc‐ion batteries (ZIBs) have recently attracted attention for applications in energy storage systems owing to their intrinsic safety, low cost, environmental compatibility, and competitive gravimetric density. To enable the practical of ZIBs, density must be equivalent existing commercial lithium‐ion batteries. acquire high‐energy density, increasing operating voltage battery is undoubtedly an effective method, which demands cathode material exhibit a high versus Zn...

Alongside the pursuit of high energy density and long service life, urgent demand for low-temperature performance remains a long-standing challenge wide range Li-ion battery applications, such as electric vehicles, portable electronics, large-scale grid systems, special space/seabed/military purposes. Current batteries suffer major loss capacity power fail to operate normally when temperature decreases –20 °C. This deterioration is mainly attributed poor transport in bulk carbonated ester...

Aqueous zinc-metal batteries have attracted extensive attention due to their outstanding merits of high safety and low cost. However, the intrinsic thermodynamic instability zinc in aqueous electrolyte inevitably results hydrogen evolution, consequent generation OH- at interface will dramatically exacerbate formation dead dendrites. Herein, a dynamically interfacial pH-buffering strategy implemented by N-methylimidazole (NMI) additive is proposed remove detrimental zinc/electrolyte...

Lithium (Li) has garnered considerable attention as an alternative anodes of next-generation high-performance batteries owing to its prominent theoretical specific capacity. However, the commercialization Li metal (LMAs) is significantly compromised by non-uniform deposition and inferior electrolyte-anode interfaces, particularly at high currents capacities. Herein, a hierarchical three-dimentional structure with CoSe

Abstract Aqueous Zn||vanadium oxide batteries (ZVBs) have recently received considerable attention owing to their high capacity, safety, environmental friendliness, and cost effectiveness. However, the limited cycling stability caused by irreversible dissolution in traditional aqueous electrolytes still restricts further application. Herein, a novel 3 m Zn(CF SO ) 2 electrolyte with mixture solvent of propylene carbonate (PC) H O is adopted for vanadium‐based zinc‐ion batteries. With...

Abstract Aqueous rechargeable Zn metal batteries (AZMBs) have attracted widespread attention due to their intrinsic high volumetric capacity and low cost. However, the unstable Zn/electrolyte interface causes dendrite growth side reactions, resulting in poor Coulombic efficiency unsatisfactory lifespan. Herein, a SiO 2 reinforced‐sodium alginate (SA) hybrid film is designed regulate solid–liquid interaction energy spatial distribution of all species electric double layer (EDL) near...

Graphite anode suffers from great capacity loss and even fails to charge (i.e. Li+ -intercalation) under low temperature, mainly arising the large overpotential including sluggish de-solvation process insufficient ions movement in solid electrolyte interphase (SEI). Herein, an is developed by utilizing weakly solvated molecule ethyl trifluoroacetate film-forming fluoroethylene carbonate achieve smooth high ionic conductivity at temperature. Evolution of SEI formed different temperatures...

Zn-I2 batteries stand out in the family of aqueous Zn-metal (AZMBs) due to their low-cost and immanent safety. However, Zn dendrite growth, polyiodide shuttle effect sluggish I2 redox kinetics result dramatically capacity decay batteries. Herein, a Janus separator composed functional layers on anode/cathode sides is designed resolve these issues simultaneously. The cathode layer Fe nanoparticles-decorated single-wall carbon nanotubes can effectively anchor catalyze iodine species, while...

Abstract Aqueous zinc‐iodine (Zn‐I 2 ) batteries are promising candidates for grid‐scale energy storage due to their safety and cost‐effectiveness. However, the shuttle effect of polyiodides, Zn corrosion, accumulation by‐products restrict applications. Herein, a simple vermiculite nanosheets (VS) suspension electrolyte is designed simultaneous confinement polyiodides stabilization anode. It found that generation I 5 − as dominant intermediate precipitation reaction between alkaline should...

Hard carbon (HC) has emerged as a strong anode candidate for sodium-ion batteries due to its high theoretical capacity and cost-effectiveness. However, sodium storage mechanism remains contentious, the influence of microstructure on performance is not yet fully understood. This study successfully correlates structural attributes with electrochemical performance, shedding light what makes HC effective storage. It found that featuring larger interlayer spacing smaller thinner pseudographite...

Electric systems show efficiency decline as current density rises due to mass-transport limitations. However, zinc plating/stripping displays high reversibility and maintains in-planar morphology at density.

The Zn dendrite issue, which is closely related to the creation of space-charge region upon local anion depletion during cycling, has plagued practical applications aqueous metal batteries (ZMBs). Herein, we propose a Kevlar-derived hydrogel (KevlarH) electrolyte with immobilized anions diminish layer effect. SO42– are strongly tethered amide groups polymer chains, mitigates concentration polarization interfacial Zn2+ ions by preventing depletion. Furthermore, relatively weak interaction...

Abstract Although the electrochemical properties of various cathode candidates for sodium‐ion batteries (SIBs) are intensively studied on material level, evaluation and comparison from perspective future practical implementation still lacking. In particular, air stability, which is often overlooked, will not only affect electrode manufacturing processes but also cause detrimental structural change. Herein, two recently commercialized products NaNi 1/3 Fe Mn O 2 (NFM) Na 3 V (PO 4 ) (NVP)...