The practical application of the Zn-metal anode for aqueous batteries is greatly restricted by catastrophic dendrite growth, intricate hydrogen evolution, and parasitic surface passivation. Herein, a polyanionic hydrogel film introduced as protective layer on Zn with assistance silane coupling agent (denoted Zn-SHn). framework zincophilic -SO3- functional groups uniformizes zinc ions flux transport. Furthermore, such chemically bonded possesses an anti-catalysis effect, which effectively...

The practical uses of lithium-sulfur batteries are greatly restricted by the sluggish reaction kinetics lithium polysulfides (LiPSs), leading to low sulfur utilization and poor cyclic stability. Using heterostructure catalysts is an effective way solve above problems, but how further enhance conversion efficiency avoid surface passivation insulative Li2S has not been well investigated. Herein, a catalyst with rich heterointerfaces was prepared modifying Mo2N microbelt SnO2 nanodots. formed...

Abstract The large‐scale deployment of aqueous Zn‐ion batteries is hindered by Zn anode instability including surface corrosion, hydrogen gas evolution, and irregular deposition. To tackle these challenges, a polyhydroxylated organic molecular additive, trehalose, incorporated to refine the solvation structure promote planar Within regions involving hydroxy groups participate in reconstruction bond networks, which increases overpotential for water decomposition reaction. Moreover, at...

Abstract The flexible self‐supporting electrode can maintain good mechanical and electrical properties while retaining high specific capacity, which meets the requirements of batteries. Lithium‐sulfur batteries (LSBs), as a new generation energy storage system, hold much higher theoretical density than traditional batteries, they have attracted extensive attention from both academic industrial communities. Selection proper substrate material is important for electrode. Carbon materials, with...

Abstract The progress of aqueous zinc batteries (AZBs) is limited by the poor cycling life due to Zn anode instability, including dendrite growth, surface corrosion, and passivation. Inspired anti‐corrosion strategy steel industry, a compounding corrosion inhibitor (CCI) employed as electrolyte additive for metal protection. It shown that CCI can spontaneously generate uniform ≈30 nm thick solid‐electrolyte interphase (SEI) layer on with strong adhesion via ZnO bonding. This SEI efficiently...

Rechargeable aqueous Zn-I2 batteries (ZIB) are regarded as a promising energy storage candidate. However, soluble polyiodide shuttling and rampant Zn dendrite growth hamper its commercial implementation. Herein, hetero-polyionic hydrogel is designed the electrolyte for ZIBs. On cathode side, iodophilic polycationic (PCH) effectively alleviates shuttle effect facilitates redox kinetics of iodine species. Meanwhile, polyanionic (PAH) toward metal anode uniformizes Zn2+ flux prevents surface...

The commercial implementation of aqueous Zn-ion batteries is being impeded by the rampant dendrite growth and exacerbated side reactions on Zn metal anodes. Herein, a 60 nm artificial protective layer with spatial dielectric–metallic gradient composition (denoted as GZH) developed via HfO2 cosputtering. In this design, top high permittivity low electronic conductivity effectively suppresses hydrogen evolution. intermediate Zn-rich oxide region promotes dendrite-free deposition reinforces...

Abstract The practical implementation of aqueous zinc‐iodine batteries (ZIBs) is hindered by the rampant Zn dendrites growth, parasite corrosion, and polyiodide shuttling. In this work, ionic liquid EMIM[OAc] employed as an all‐round solution to mitigate challenges on both anode iodine cathode side. First, EMIM + embedded lean‐water inner Helmholtz plane (IHP) inert solvation sheath modulated OAc − effectively repels H 2 O molecules away from surface. preferential adsorption metal...

Abstract Zinc–iodine batteries have the potential to offer high energy‐density aqueous energy storage, but their lifetime is limited by rampant dendrite growth and concurrent parasite side reactions on Zn anode, as well shuttling of polyiodides. Herein, a cation‐conduction dominated hydrogel electrolyte designed holistically enhance stability both zinc anode iodine cathode. In this electrolyte, anions are covalently anchored chains, major mobile ions in restricted be 2+ . Specifically, such...

Abstract Zn metal is a promising anode material in aqueous batteries, but the direct use of foil encounters severe issues dendrite formation and side reactions, causing short cycle life. Conventional thick rigid insulating protection layers may impede ion diffusion detach during mechanical deformation battery. Herein, dendrite‐free zinc demonstrated by grafting thin (≈10 nm) Ti 3 C 2 T x MXene functional membrane which formed via Marangoni‐driven self‐assembly. The initiates uniform...

Aerogels have provided a significant platform for passive radiation-enabled thermal regulation, arousing extensive interest due to their capabilities of radiative cooling or heating. However, there still remains challenge developing functionally integrated aerogels sustainable regulation in both hot and cold environment. Here, Janus structured MXene-nanofibrils aerogel (JMNA) is rationally designed via facile efficient way. The achieved presents the characteristic high porosity (≈98.2%),...

Single-atom catalysts (SACs) with high atom utilization and outstanding catalytic selectivity are useful for improving battery performance. Herein, atomically dispersed Ni-N4 Fe-N4 dual sites coanchored on porous hollow carbon nanocages (Ni-Fe-NC) fabricated deployed as the sulfur host Li-S battery. The conductive matrix promotes electron transfer also accommodates volume fluctuation during cycling. Notably, d band center of Fe in site demonstrates strong polysulfide affinity, leading to an...

Abstract Constructing artificial interface layer is an effective approach to facilitate the utilization rate of zinc metal, but practical application still hindered by inferior mechanical strength, low ionic conductivity, and poor stability. Herein, robust organic–inorganic (Nafion/BM@Zn) coated on metal through ultrasonic spraying method with boehmite Nafion as composite precursor. As demonstrated, high cation selectivity hydrophilicity Nafion, well zincophilic property layered structure...

Herein, a graphene-like wrinkled carbon film (WCF) wrapped zinc sulfide (ZnS) spheres hybrid interlayer material was fabricated. Li-S batteries coupled with ZnS@WCF showed excellent capacity retention and outstanding rate performance.

The large-scale application of lithium-sulfur batteries (LSBs) has been impeded by the shuttle effect lithium-polysulfides (LiPSs) and sluggish redox kinetics since which lead to irreversible capacity decay low sulfur utilization. Herein, a hierarchical interlayer constructed boroxine covalent organic frameworks (COFs) with high Li+ conductivity is fabricated via an in situ polymerization method on carbon nanotubes (CNTs) (C@COF). as-prepared delivers ionic (1.85 mS cm-1 ) transference...

Abstract Lithium (Li) metal with high specific capacity and low redox potential is widely considered as a anode for lithium‐ion batteries (LIBs) energy density. However, the catastrophic dendrites growth, “dead Li” formation, surface passivation hinder its practical application. Herein, selective artificial solid electrolyte interphase (SEI) layer (Li 2 S x , = 1, 2) protection strategy adopted, where tip sites uniform Li nucleation in grooves are well combined, which enables reversible...

Abstract Aqueous zinc‐iodine battery (AZIB) has the advantage of low cost and high specific capacity but suffer from soluble polyiodides shuttling sluggish redox kinetics. Herein, these two limitations are addressed by employing a cathode additive (zirconium hydrogen phosphate, denoted as EI‐ZrP) which provides dual functions: an agent for polyiodide confinement, abundant channels zinc ion transport. An enlarged crystalline interlayer (from typical 7.5 to 18.3 Å) EI‐ZrP significantly...

Abstract The application of lithium–sulfur batteries (LSBs) is immensely impeded by notorious shuttle effect, sluggish redox kinetics, and irregular Li 2 S deposition, which result in large polarization rapid capacity decay. To obtain the LSBs with high energy density fast reaction herein, a heterostructure composed nitrogen‐deficient graphitic carbon nitride (ND‐ g ‐C 3 N 4 ) MgNCN fabricated via magnesiothermic denitriding technology. Lithophilic C abundant acts as conductive framework,...

Abstract Nanoporous carbons with tailorable nanoscale texture and long-range ordered structure are promising candidates for energy, environmental catalytic applications, while the current synthetic methods do not allow elaborate control of local structure. Here we report a salt-assisted strategy to obtain crystalline nanocarbon from direct carbonization metal-organic frameworks (MOFs). The product maintains highly two-dimensional (2D) stacking mode substantially differs traditional weakly...