Building better aqueous Zn-organic batteries

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(6), P. 2398 - 2431

Published: Jan. 1, 2023

This is a systematic overview focusing on recent developments, energy storage mechanisms, and design improvement strategies for aqueous Zn-organic batteries.

Language: Английский

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Inhibition of Vanadium Cathodes Dissolution in Aqueous Zn‐Ion Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(14)

Published: Jan. 16, 2024

Aqueous zinc-ion batteries (AZIBs) have experienced a rapid surge in popularity, as evident from the extensive research with over 30 000 articles published past 5 years. Previous studies on AZIBs showcased impressive long-cycle stability at high current densities, achieving thousands or tens of cycles. However, practical low densities (<1C) is restricted to merely 50-100 cycles due intensified cathode dissolution. This genuine limitation poses considerable challenge their transition laboratory industry. In this study, leveraging density functional theory (DFT) calculations, an artificial interphase that achieves both hydrophobicity and restriction outward penetration dissolved vanadium cations, thereby shifting reaction equilibrium suppressing dissolution following Le Chatelier's principle, described. The approach has resulted one best cycling stabilities date, no noticeable capacity fading after more than 200 (≈720 h) mA g

Language: Английский

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Regulating the electronic structure of manganese-based materials to optimize the performance of zinc-ion batteries

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(8), P. 3240 - 3301

Published: Jan. 1, 2023

The optimization of electronic structure is a common internal mechanism all modification methods and acts as general strategy for the intrinsic properties manganese-based materials in zinc-ion batteries.

Language: Английский

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Highly Stable Photo‐Assisted Zinc‐Ion Batteries via Regulated Photo‐Induced Proton Transfer

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(15)

Published: Feb. 9, 2024

Photo-assisted ion batteries utilize light to boost capacity but face cycling instability due complex charge/ion transfer under illumination. This study identified photo-induced proton (photo-induced PT) as a significant process in photo-(dis)charging of widely-used V

Language: Английский

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In Situ Molecular Engineering Strategy to Construct Hierarchical MoS₂ Double-Layer Nanotubes for Ultralong Lifespan “Rocking-Chair” Aqueous Zinc-Ion Batteries

ACS Nano, Journal Year: 2024, Volume and Issue: 18(8), P. 6487 - 6499

Published: Feb. 13, 2024

Rechargeable aqueous zinc ion batteries (AZIBs) have gained considerable attention owing to their low cost and high safety, but dendrite growth, plating/stripping efficiency, surface passivation, self-erosion of the Zn metal anode are hindering application. Herein, a one-step in situ molecular engineering strategy for simultaneous construction hierarchical MoS2 double-layer nanotubes (MoS2-DLTs) with expanded layer-spacing, oxygen doping, structural defects, an abundant 1T-phase is proposed, which designed as intercalation-type "rocking-chair" AZIBs, avoiding issues therefore displaying long cycling life. Benefiting from optimization engineering, Zn2+ diffusion efficiency interface reaction kinetics MoS2-DLTs enhanced. When coupled homemade ZnMn2O4 cathode, assembled MoS2-DLTs//ZnMn2O4 full battery exhibited impressive stability capacity retention 86.6% over 10 000 cycles under 1 A g–1anode, outperforming most reported AZIBs. The Zn2+/H+ cointercalation mechanism investigated by synchrotron powder X-ray diffraction multiple ex characterizations. This research demonstrates feasibility Zn-storage anodes that can be used construct reliable batteries.

Language: Английский

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Solution-Processable and Printable Two-Dimensional Transition Metal Dichalcogenide Inks

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(9), P. 5795 - 5845

Published: April 19, 2024

Two-dimensional (2D) transition metal dichalcogenides (TMDs) with layered crystal structures have been attracting enormous research interest for their atomic thickness, mechanical flexibility, and excellent electronic/optoelectronic properties applications in diverse technological areas. Solution-processable 2D TMD inks are promising large-scale production of functional thin films at an affordable cost, using high-throughput solution-based processing techniques such as printing roll-to-roll fabrications. This paper provides a comprehensive review the chemical synthesis solution-processable printable ink materials subsequent assembly into applications. We start principles protocols various methods nanosheet crystals solution phase. The depositing solid-state discussed. Then, we these areas including electronics, optoelectronics, others. To conclude, summary key scientific/technical challenges future opportunities is provided.

Language: Английский

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Conversion‐Type Cathode Materials for Aqueous Zn Metal Batteries in Nonalkaline Aqueous Electrolytes: Progress, Challenges, and Solutions

Advanced Materials, Journal Year: 2023, Volume and Issue: unknown

Published: July 19, 2023

Aqueous Zn metal batteries are attractive as safe and low-cost energy storage systems. At present, due to the narrow window of aqueous electrolyte strong reliance Zn2+ ion intercalated reaction on host structure, current cathode materials exhibit restricted densities. In contrast, with conversion reactions can promise higher Especially, recently reported conversion-type that function in nonalkaline electrolytes have garnered increasing attention. This is because use prevent occurrence side encountered alkaline thereby enhance cycling stability. However, there a lack comprehensive review mechanisms, progress, challenges, solutions these materials. this review, four kinds including MnO2 , halogen (Br2 I2 ), chalcogenide (O2 S, Se, Te), Cu-based compounds (CuI, Cu2 O, CuO, CuS, CuSe) reviewed. First, mechanisms battery structures introduced. Second, fundamental problems their corresponding discussed detail each material. Finally, future directions efforts for development proposed.

Language: Английский

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Room‐Temperature Salt Template Synthesis of Nitrogen‐Doped 3D Porous Carbon for Fast Metal‐Ion Storage

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(1)

Published: Nov. 21, 2023

Abstract The water‐soluble salt‐template technique holds great promise for fabricating 3D porous materials. However, an equipment‐free and pore‐size controllable synthetic approach employing precursors at room temperature has remained unexplored. Herein, we introduce a green room‐temperature antisolvent precipitation strategy creating self‐assembly to universally produce materials with pore size. Through combination of theoretical simulations advanced characterization techniques, unveil the mechanism provide guidelines selecting raw controlling size precipitated salt. Following calcination washing steps, achieve large‐scale universal production recycling salt templates antisolvents. optimized nitrogen‐doped carbon (N‐3DPC) demonstrate distinctive structural benefits, facilitating high capacity potassium‐ion storage along exceptional reversibility. This is further supported by in situ electrochemical impedance spectra, Raman spectroscopy, calculations. anode shows rate 181 mAh g −1 4 A full cell. study addresses knowledge gap concerning synthesis materials, thereby expanding their potential applications energy conversion storage.

Language: Английский

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Structural Transformation by Crystal Engineering Endows Aqueous Zinc‐Ion Batteries with Ultra‐long Cyclability

Small, Journal Year: 2023, Volume and Issue: 19(29)

Published: April 8, 2023

Manganese oxide is a promising cathode material for aqueous zinc batteries. However, its weak structural stability, low electrical conductivity, and sluggish reaction kinetics lead to rapid capacity fading. Herein, crystal engineering strategy proposed construct novel MnO2 material. Both experimental results theoretical calculations demonstrate that Al-doping plays crucial role in phase transition doping-superlattice structure construction, which stabilizes the of materials, improves accelerates ion diffusion dynamics. As result, 1.98% (AlMO) shows an incredible 15 000 cycle stability with decay rate 0.0014% per at 4 A g-1 . Additionally, it provides superior specific 311.2 mAh 0.1 excellent performance (145.2 5.0 ). To illustrate potential 1.98%AlMO be applied actual practice, flexible energy storage devices are fabricated measured. These discoveries provide new insight transformation via engineering, as well avenue rational design electrode other battery systems.

Language: Английский

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Constructing oxygen deficiency-rich V2O3@PEDOT cathode for high-performance aqueous zinc-ion batteries

Rare Metals, Journal Year: 2023, Volume and Issue: 43(2), P. 635 - 646

Published: Nov. 15, 2023

Language: Английский

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