Iodine has great potential in the energy storage, but high solubility of I3- seriously delayed its promotion. Benefited from abundant active sites and open channel, two-dimensional coordination supramolecular networks (2D CSNs) is considered to be a candidate for storage. Herein, 2D porphyrin-CSN cathode named Zn-TCPP aqueous iodine dual-ion battery (DIB) shows an excellent specific capacity 278 mAh g-1 , density 340 Wh kg-1 at 5 A as well durable cycle performance 5000 cycles Coulombic...

Abstract Commercialization of aqueous zinc‐metal batteries remains unrealistic due to the substantial dendrite growth and side reaction issues on zinc anodes. It is highly demanded develop easy‐to‐handle approaches for constructing stable, dense, as well homogeneous solid anode/electrolyte interfaces. Herein, authors construct anode interface with a close‐packed Zn‐TSA (TSA = thiosalicylate) coordination supramolecular network through facile up‐scalable wet‐chemical method. The hydrophobic...

High room-temperature ionic conductivity and good compatibility with lithium metal cathode materials are prerequisites for solid-state electrolytes used in batteries. Here, the polymer (SSPE) prepared by combining traditional two-roll milling technology interface wetting. The as-prepared consisting of elastomer matrix high-mole-loading LiTFSI salt show a high room temperature 4.6×10-4 S cm-1 , electrochemical oxidation stability up to 5.08 V, improved stability. These phenomena rationalized...

Aqueous Zn-ion batteries (ZIBs) are considered very promising alternatives to lithium-ion batteries. However, the low reversibility and slow diffusion of zinc ions in positive electrode limit their commercial applications. Herein, we successfully prepared metallic 1T phase MoS2 (1T-MoS2) with a nano interlayer spacing 1.025 nm through simple one-step hydrothermal method, used it as cathode ZIBs. By adjusting temperature, crystallinity Zn2+ storage capacity for ZIBs effectively improved. had...

Aqueous zinc metal batteries (ZMBs) are a promising sustainable technology for large-scale energy storage applications. However, the water is often associated with problematic parasitic reactions on both anode and cathode, leading to low durability reliability of ZMBs. Here, multifunctional separator Zn-V2 O5 by growing coordination supramolecular network (CSN:Zn-MBA, MBA = 2-mercaptobenzoic acid) conventional non-woven fabrics (NWF) developed. CSN tends form stronger bond as softer cation,...

A scalable manufacturing protocol is developed to prepare polymer-based solvent-free all-solid flexible energy storage devices based on a two-roll mill and adapted rubber mixing technology. The as-prepared solid polymer electrolytes (SPEs) consisting of commercial poly(methyl methacrylate)-grafted natural (MG30) lithium bis(trifluoromethanesulfonyl)imide achieve superior ionic conductivity 2.7 × 10–3 S cm–1 at 30 °C. attributed the formation an cluster network in composite as proved by...

Iodine is considered to have broad application prospects in the field of electrochemical energy storage. However, high solubility I3- severely hampers its practical application, and lack research on anchoring mechanism has seriously hindered development advanced cathode materials for iodine batteries. Herein, based molecular orbital theory, we studied charge-transfer interaction between acceptor with a σ* empty antibonding donor pyrimidine nitrogen lone-pair electrons, which proved by...

Abstract In this work, a functional covalent gel material is developed to resolve the severe dendritic growth and hydrogen evolution reaction toward Zn/electrolyte interface in aqueous zinc‐ion batteries (ZIBs). A layer with superior durability forms homogeneously on surface of Zn foil. The triazole groups can uniformize transport 2+ due interactions between ions gel. As consequence, symmetrical battery maintains stable plating/stripping for over 3000 h at 1 mA cm −2 mAh , full cell combined...

To inhibit the polysulfide-diffusion in lithium sulfur (Li-S) batteries and improve electrochemical properties, commercial polypropylene (PP) was decorated by an active carbon (AC) coating with lots of electronegative oxygenic functional group -OH. Owing to strong adsorption AC electrostatic repulsion between -OH negatively charged polysulfide ions, Li-S demonstrated a high initial discharge capacity 1,656 mAh g-1 (approximately 99% utilization sulfur) can still remain at 830 after 100...

Hf and N co-doped diamond-like carbon [(Hf:N)-DLC] films were deposited on 316L stainless steel glass substrates through reactive magnetron sputtering of hafnium targets at various nitrogen flow ratios (R=N2/[N2+CH4+Ar]). The effects chemical composition crystal structure the optical properties (Hf:N)-DLC studied. obtained consist uniform HfN nanocrystallines embedded into DLC matrix. size graphite clusters with sp2 bonds (La) ID/IG ratio increase to 2.47 nm 3.37, respectively, increasing R....

Graphene/sulfur@graphene composite structure as a cathode material is synthesized with facile method. Graphene can provide more efficient conductive network for sulfur and improve the coulombic efficiency of battery. On other hand, it may also show anchoring effect on sulfur, which reduces loss improves cycling performance Due to unique structure, initial discharge capacity battery assembled this could reach 1036 mAh g −1 at 0.1 C, its reversible 619 was retained after 200 cycles low fading...

Abstract Iodine has great potential in the energy storage, but high solubility of I 3 − seriously delayed its promotion. Benefited from abundant active sites and open channel, two‐dimensional coordination supramolecular networks (2D CSNs) is considered to be a candidate for storage. Herein, 2D porphyrin‐CSN cathode named Zn‐TCPP aqueous iodine dual‐ion battery (DIB) shows an excellent specific capacity 278 mAh g −1 , density 340 Wh kg at 5 A as well durable cycle performance 5000 cycles...

A novel vanadium coordination supramolecular network was synthesized, and employed as the cathode for zinc metal batteries, exhibit excellent rate performance ultra-long cycle life.

Due to the high theoretical specific capacity of lithium-sulfur batteries, it is considered most promising electrochemical energy storage device for next generation. However, development battery has been restricted by its low cycle efficiency and capacity. We present a Plane double-layer structure AC@S cathode improve performance batteries. The with this showed good performance. initial discharge could reach 1,166 mAhg-1 at 0.1 C. After 200 cycles, still remains reversible 793 mAh g-1 fading...

A novel helical Carbon nanotubes (HCNT) network with a reduced graphene oxide (rGO) coating was designed and fabricated through synergistic self-assembly sulfuration strategy for use as an effective sulfur (S) host. ferroconcrete frame structure hierarchical 3D nanostructure composed of 1D HCNT 2D rGO nanosheets obtained. The wraps around the to form heterostructure provide apparent that protects S. in composite boost create architecture reinforce structural stability. Moreover,...

Zinc coordination supramolecular network (Zn-CSN) combined with MnO 2 to obtained the Zn-CSN@MnO , as a sulfur host achieves high-rate performance of lithium–sulfur batteries.

The search for high-energy and fast Li-ion transportation of lithium-ion battery (LIB) anode materials instead graphite has aroused the wide attention scientists. Coordination supramolecular networks (CSNs) are a class active that can be used in energy storage devices because their adjustable structural characteristics various intermolecular forces. In this work, 1D-CoCSN {[Co3(stp)2(bpy)5(H2O)6]n} 3D-CoCSN {[Co3(stp)2(bpy)(H2O)4]n} were synthesized by regulating coordination reaction...

Lithium–sulfur (Li–S) batteries have an ultrahigh specific capacity and low budget. However, their practical application is impeded by the critical issue of sluggish kinetics as well polysulfide shuttling. Coordination Supramolecular Networks (CSNs) exhibit excellent charge transport capability structural dynamic reversibility via weak bond associations such hydrogen bonding, π–π stacking, so on, which provide possibility to solve problems existing in Li–S batteries. Herein, we demonstrate...

The environmental benefit and cheapness of aqueous zinc metal batteries enable them to top scrutiny. But so far, their engagement for practical scenarios is subjected chronic dendrite growth water-induced parasitic reactions that can terribly impair the system. Herein, innocent polyvinylpyrrolidone (PVP) additive with well-suited qualitative filter paper separator promote electrochemical stability anode in Zn(CF 3 SO ) 2 electrolyte. PVP regulates deposition behavior mitigates corrosion Zn...