Constructing π–π Superposition Effect of Tetralithium Naphthalenetetracarboxylate with Electron Delocalization for Robust Dual‐Ion Batteries

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(22)

Опубликована: Март 25, 2024

Abstract Organics are gaining significance as electrode materials due to their merits of multi‐electron reaction sites, flexible rearrangeable structures and redox reversibility. However, organics encounter finite electronic conductivity inferior durability especially in organic electrolytes. To circumvent above barriers, we propose a novel design strategy, constructing conductive network with extended π–π superposition effect by manipulating intermolecular interaction. Tetralithium 1,4,5,8‐naphthalenetetracarboxylate (LNTC) interwoven carbon nanotubes (CNTs) forms LNTC@CNTs composite firstly for Li‐ion storage, where multiple conjugated carboxyls contribute sufficient storage the unique feature enables electrolyte charge mobility conveniently combining electron delocalization π‐conjugated system, enhanced between LNTC CNTs endows laudable structural robustness. Accordingly, maintain an excellent capacity retention 96.4 % after 400 cycles. Electrochemical experiments theoretical simulations elucidate fast kinetics reversible stability owing effect, while reversibly rearranged into enolates during charging/discharging. Consequently, dual‐ion battery this anode expanded graphite cathode exhibits peak specific 122 mAh g −1 long cycling life 84.2 900

Язык: Английский

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Multi-electron bipolar-type organic molecules for high-capacity dual-ion zinc batteries

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(20), С. 11867 - 11874

Опубликована: Янв. 1, 2024

An organic indanthrone molecule realizes alternate Zn 2+ /CF 3 SO − ion storage involving multi-electron transfer at bipolar-type redox-active centers, providing high capacity, high-voltage durability and energy density for dual-ion batteries.

Язык: Английский

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A covalent organic framework as a dual-active-center cathode for a high-performance aqueous zinc-ion battery

Chemical Science, Год журнала: 2024, Номер 15(12), С. 4341 - 4348

Опубликована: Янв. 1, 2024

Organic electrode materials have shown significant potential for aqueous Zn ion batteries (AZIBs) due to their flexible structure designability and cost advantage. However, sluggish ionic diffusion, high solubility, low capacities limit practical application. Here, we designed a covalent organic framework (TA-PTO-COF) generated by covalently bonding tris(4-formylbiphenyl)amine (TA) 2,7-diaminopyrene-4,5,9,10-tetraone (PTO-NH

Язык: Английский

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Constructing ultra-stable, high-energy, and flexible aqueous zinc-ion batteries using environment-friendly organic cathodes

Chemical Science, Год журнала: 2024, Номер 15(13), С. 4952 - 4959

Опубликована: Янв. 1, 2024

Aqueous zinc batteries using environment-friendly and sustainable quinone cathodes realize a long life cycle, high active mass loading, excellent flexibility, showing its potential for application in wearable electronics.

Язык: Английский

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Progress and challenges of electrolyte modulation in aqueous zinc-ion batteries

Rare Metals, Год журнала: 2024, Номер 43(7), С. 2940 - 2967

Опубликована: Апрель 9, 2024

Язык: Английский

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Vanadium Oxide Cathode Coinserted by Ni²⁺ and NH₄⁺ for High-Performance Aqueous Zinc-Ion Batteries

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(7), С. 8922 - 8929

Опубликована: Фев. 8, 2024

Vanadium-based oxides have garnered significant attention as cathode materials for aqueous zinc-ion batteries (AZIBs) because of their high theoretical capacity and low cost. However, the limited reaction kinetics poor long-term cycle stability hinder widespread application. In this paper, we propose a novel approach by coinserting Ni2+ NH4+ ions into V2O5·3H2O, i.e., NNVO. Structural characterization shows that coinsertion not only extends interlayer spacing V2O5·3H2O but also significantly promotes transport Zn2+ synergistic "pillar" effect NH4+, well increased oxygen vacancies effectively lower energy barrier insertion. As result, AZIBs with an NNVO electrode exhibit 398.1 mAh g–1 (at 1.0 A g–1) good 89.1% retention even after 2000 cycles at 5.0 g–1. At same time, highly competitive density 262.9 Wh kg–1 is delivered 382.9 W kg–1. Considering simple scheme resultant performance, study may provide positive attempt to develop high-performance AZIBs.

Язык: Английский

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A solubility limited pyrene-4,5,9,10-tetraone-based covalent organic framework for high-performance aqueous zinc-organic batteries

Nano Research, Год журнала: 2024, Номер 17(6), С. 5095 - 5103

Опубликована: Янв. 15, 2024

Язык: Английский

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Synergistic Ion Sieve and Solvation Regulation by Recyclable Clay-Based Electrolyte Membrane for Stable Zn-Iodine Battery

ACS Nano, Год журнала: 2023, Номер 17(24), С. 25291 - 25300

Опубликована: Дек. 12, 2023

The high dissolution of polyiodides and unstable interface at the anode/electrolyte severely restrict practical applications rechargeable aqueous Zn-iodine batteries. Herein, we develop a zinc ion-based montmorillonite (ZMT) electrolyte membrane for synergizing ion sieve solvation regulation to achieve highly stable rich M-O band special cation-selective transport channel in ZMT locally tailor sheath around Zn2+ therefore transference number (t+ = 0.72), benefiting uniform reversible deposition/stripping Zn. Meanwhile, mechanisms three-step polyiodide generation shuttle-induced Zn corrosion are highlighted by situ characterization techniques. It is confirmed that strong chemical adsorption between O atoms species key effectively inhibit shuffle effect side reactions. Consequently, ZMT-based battery delivers capacity 0.45 mAh cm-2 1 mA with much improved Coulombic efficiency 99.5% outstanding retention 95% after 13 500 cycles 10 cm-2. Moreover, owing its durability inertness structural stability, membranes can be recycled applied double-sided pouch cells, delivering areal 2.4

Язык: Английский

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Engineering eutectic network for regulating the stability of polyiodides towards high rate and long cycling zinc-iodine batteries

Energy storage materials, Год журнала: 2023, Номер 63, С. 103019 - 103019

Опубликована: Окт. 11, 2023

Язык: Английский

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An extended S-heterocyclic organic compound with enhanced redox active sites for efficient and stable ammonium ion removal via capacitive deionization

Desalination, Год журнала: 2024, Номер 592, С. 118120 - 118120

Опубликована: Сен. 14, 2024

Язык: Английский

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