Multifunctional Crown Ether Additive Regulates Desolvation Process to Achieve Highly Reversible Zinc‐Metal Batteries

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Abstract Aqueous zinc‐ion batteries have garnered significant attention due to their abundant materials, low production costs, and safety. However, these suffer from severe side reactions, which are closely associated with the presence of a substantial amount solvent at electrode surfaces. Herein, 1,4,7,10,13,16‐hexaoxacyclooctadecane (18‐crown‐6) is added electrolyte illustrate both theoretically experimentally its contribution rapid desolvation aspect. It shown that addition 18‐crown‐6 greatly facilitates solvated structure prevents collection molecules on surface zinc anode, thus inhibiting hydrogen precipitation reaction. also enhances transference number ions, makes interfacial electric field anode stable promotes orderly diffusion uniform nucleation Zn 2+ , inhibits growth dendrites. As result, containing as additives shows cycle life, Zn||Zn symmetric cell cycled for nearly 1700 h 1 mA cm −2 showing improvement in Coulombic efficiency. The assembled Zn||NH 4 V O 10 exhibits excellent electrochemical performance, reaching capacity 100.9 mAh g −1 even after 4000 cycles 10.0 A .

Language: Английский

---

Dicyandiamide assisted highly interconnected hierarchal pore structures in coal tar pitch-derived carbon towards high-performance Zn-ion hybrid capacitor

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120019 - 120019

Published: Jan. 1, 2025

Language: Английский

---

Robust diphasic coupling layer with ferroelectric switching response for durable and dendrite-free zinc anodes

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160250 - 160250

Published: Feb. 1, 2025

Language: Английский

---

Homogeneous Low-Tortuosity Membrane with Fast Ion Transfer towards Life-Durable Low-Temperature Zinc Metal Batteries

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104161 - 104161

Published: March 1, 2025

Language: Английский

---

Tuning the pore structure of N/O co-doped porous carbon nanosheets for high-performance supercapacitors and zinc-ion capacitors

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 118, P. 35 - 45

Published: March 17, 2025

Language: Английский

---

Wheat straws-derived hierarchical porous carbon as electrode material for supercapacitor

Deleted Journal, Journal Year: 2025, Volume and Issue: 2(1)

Published: April 14, 2025

Abstract Hierarchical porous carbon materials hold great potential in electrochemical energy storage, yet their efficient fabrication still faces numerous challenges. Herein, we successfully prepared hierarchical with high specific surface area, broad pore size distribution, and interconnected structures by direct co-pyrolysis of wheat straw potassium hydroxide, leveraging the natural reticular structure straw. As an electrode material for symmetric supercapacitors, CS-800 exhibited excellent performance, retaining 96.94% its initial capacity after 20,000 cycles at current density 1 A g⁻ achieving nearly 100% Coulombic efficiency. Furthermore, to expand application scope, assembled a zinc-ion capacitor using as cathode, which delivered 173 mAh . The channels significantly enhanced ion transport storage capabilities optimized adsorption desorption processes charge carriers. This study demonstrates that preparation high-value-added from biomass waste holds prospects.

Language: Английский

---

Layered intercalated architecture of Ni2V2O7 nanoparticle and N-doped reduced graphene oxide composite sheet as an electrode material for solid-state asymmetric supercapacitor

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 642, P. 236931 - 236931

Published: April 8, 2025

Language: Английский

---

Prussian-Blue-Analogue-Derived Ag@Co₃O₄ and Bi₂O₃@BiFeO₃ Nanostructures As Battery-Type Electrodes for High-Performance Asymmetric Supercapacitor

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 18, 2024

The reasonable construction of Prussian blue analogue (PBA) derivative electrode materials with unique structural characteristics and multiple redox active sites has attracted extensive attention in the field energy storage. Herein, battery-type electrodes silver-decorated cobaltosic oxide (Ag@Co3O4, denoted as Ag3@CO) bismuth–iron (Bi2O3@BiFeO3, BO@BFO) have been proposed by an situ oxidation strategy PBAs. It is surprising that silver nanoparticles Ag3@CO are uniformly distributed cobalt phase, further improving its electrical conductivity accelerating electron transfer rate. irregular rod nanostructure BO@BFO enhances reaction kinetics augmenting interfacial contact area. Furthermore, integration binary metals not only offers numerous centers but also heightens synergistic effects pseudocapacitive dominated multielectron phase conversion, resulting enhanced capacity rate capability. optimized cathode material exhibits a discharge-specific up to 1027 C g–1 at current density 1 A g–1, maintaining impressive 82.77% despite high 10 g–1. In addition, 615 utilized anode establish asymmetric solid-state supercapacitor (ASC). Notably, assembled Ag3@CO//BO@BFO ASC device within voltage window 1.8 V achieved 55 Wh kg–1 power 1640 W kg–1; moreover, fully charged can light red LED drive small electric fan, demonstrating potential practical applications. This work underscores immense PBA Ag@Co3O4 Bi2O3@BiFeO3 for driving high-performance technology forward.

Language: Английский

---

Prospects of Single Atomic Catalysts for Dendrite-Free Alkali Metal Batteries

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(20), P. 10366 - 10382

Published: Jan. 1, 2024

This work provides a comprehensive understanding of single atom catalysis and its mechanisms towards advanced sustainable alkali metal batteries.

Language: Английский

---