Non‐Metal Ion Storage in Zinc‐Organic Batteries

Advanced Science, Journal Year: 2024, Volume and Issue: 11(19)

Published: March 13, 2024

Abstract Zinc‐organic batteries (ZOBs) are receiving widespread attention as up‐and‐coming energy‐storage systems due to their sustainability, operational safety and low cost. Charge carrier is one of the critical factors affecting redox kinetics electrochemical performances ZOBs. Compared with conventional large‐sized sluggish Zn 2+ storage, non‐metallic charge carriers small hydrated size light weight show accelerated interfacial dehydration fast reaction kinetics, enabling superior metrics for Thus, it valuable ongoing works build better ZOBs ion storage. In this review, versatile cationic (H + , NH 4 ) anionic (Cl − OH CF 3 SO 2− first categorized a brief comparison respective physicochemical properties chemical interactions redox‐active organic materials. Furthermore, work highlights implementation effectiveness ions in ZOBs, giving insights into impact types on (capacity, rate capability, operation voltage, cycle life) cathodes. Finally, challenges perspectives non‐metal‐ion‐based outlined guild future development next‐generation energy communities.

Language: Английский

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Synchronous Redox Reactions in Copper Oxalate Enable High-Capacity Anode for Proton Battery

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(7), P. 4762 - 4770

Published: Feb. 7, 2024

Proton batteries are competitive due to their merits such as high safety, low cost, and fast kinetics. However, it is generally difficult for current studies of proton combine capacity stability, while the research on storage mechanism redox behavior still in its infancy. Herein, polyanionic layered copper oxalate proposed anode a high-capacity battery first time. The allows reversible insertion/extraction through space but also achieves synchronous reactions Cu

Language: Английский

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Regulating the Porosity and Bipolarity of Polyimide‐Based Covalent Organic Framework for Advanced Aqueous Dual‐Ion Symmetric Batteries

Advanced Science, Journal Year: 2024, Volume and Issue: 11(39)

Published: Aug. 19, 2024

The all-organic aqueous dual-ion batteries (ADIBs) have attracted increasing attention due to the low cost and high safety. However, solubility unstable activity of organic electrodes restrict synergistic storage anions cations in symmetric ADIBs. Herein, a novel polyimide-based covalent framework (labeled as NTPI-COF) is constructed, featured with boosted structure stability electronic conductivity. Through regulating porosity bipolarity integrally, NTPI-COF possesses hierarchical porous (mesopore micropore) abundant bipolar active centers (C═O C─N), which exhibits rapid transport effects. As result, for ADIBs deliver reversible capacity 109.7 mA h g

Language: Английский

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Mastering Proton Activities in Aqueous Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 3, 2024

Abstract Advanced aqueous batteries are promising solutions for grid energy storage. Compared with their organic counterparts, water‐based electrolytes enable fast transport kinetics, high safety, low cost, and enhanced environmental sustainability. However, the presence of protons in electrolyte, generated by spontaneous ionization water, may compete main charge‐storage mechanism, trigger unwanted side reactions, accelerate deterioration cell performance. Therefore, it is pivotal importance to understand master proton activities batteries. This Perspective comments on following scientific questions: Why relevant? What activities? do we know about batteries? How better understand, control, utilize

Language: Английский

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A nano-copper particle-modified zinc anode as a protective coating enables dendrite-free aqueous zinc-ion batteries

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(8), P. 3855 - 3864

Published: Jan. 1, 2024

A nano-copper particle protective layer was constructed on the surface of zinc, effectively promoting homogeneous stripping/plating and alleviating dendrite formation. The lifespan assembled symmetric battery is greatly extended (>3200 h).

Language: Английский

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A Long‐Range Planar Polymer with Efficient π‐Electron Delocalization for Superior Proton Storage

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 30, 2024

Abstract Due to the unique “Grotthus mechanism”, aqueous proton batteries (APBs) are promising energy devices with intrinsic safety and sustainability. Although polymers tunable molecular structures ideal electrode materials, their unsatisfactory proton‐storage redox behaviors hinder practical application in APB devices. Herein, a novel planar phenazine (PPHZ) polymer robust extended imine‐rich skeleton is synthesized used for first time. The long‐range configuration achieves ordered stacking reduced conformational disorder, while high conjugation strong π‐electron delocalization optimizes bandgap electronic properties, enabling low diffusion barriers, activity, superior electron affinity. As such, PPHZ as an material exhibits fast, stable, unrivaled large capacity of 273.3 mAh g −1 at 0.5 A (1 C) 1 M H 2 SO 4 electrolyte, which highest value among proton‐inserted electrodes acidic electrolytes. Dynamic situ techniques confirm reversibility upon uptake/removal, corresponding protonation pathways elucidated by theoretical calculations. Moreover, pouch‐type cell using ultralong lifespan over 30 000 cycles, further verifying its prospect.

Language: Английский

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Constructing Crystalline NiCoP@Amorphous Nickel–Cobalt Boride Core–Shell Nanospheres with Enhanced Rate Capability for Aqueous Supercapacitors and Rechargeable Zn-Based Batteries

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(2), P. 1525 - 1537

Published: Jan. 6, 2024

Rational design and fabrication of efficient electrode materials can significantly enhance the electrochemical performance supercapacitors alkaline Zn-based batteries, especially under high current density. Herein, crystalline/amorphous nickel–cobalt phosphide@nickel–cobalt boride core–shell nanospheres (NiCoP@NiCo–B) are successfully synthesized by integrating nanosheet-assembled NiCoP hollow (core) with amorphous NiCo–B (shell). Meanwhile, crystalline core provide stable mechanical support, shell favors electrolyte ion diffusion. The well-designed NiCoP@NiCo–B heterostructure demonstrates strong interface interactions, abundant redox active sites, fast charge transfer/transport kinetics. optimal (NiCoP@NiCo–B-70) delivers a specific capacity as 193.1 mAh g–1 at 1 A ultrahigh rate capability (87.4% initial 20 g–1). assembled NiCoP@NiCo–B-70//AC asymmetric supercapacitor reaches an energy density 40.8 Wh kg–1 power 400.0 W kg–1. Furthermore, NiCoP@NiCo–B-70//Zn battery shows output voltage platform discharge 194.5 well outstanding capability. results indicate that holds great potential for practical applications in next-generation aqueous storage devices.

Language: Английский

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Realizing a Mildly Acidic Proton Battery via Surface Functionalization

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(4), P. 1853 - 1862

Published: April 1, 2024

Aqueous proton batteries (H-ion batteries) hold the potential to fill gap between and capacitors but suffer from severe electrode material corrosion caused by caustic acid electrolytes. Here, we report a mildly acidic battery in which an interfacial functionalization technique together with ultradiluted H2SO4 electrolyte (0.01 M) achieves stable cycle performance of MoO3 anode materials. The surface functionalization, specifically hydroxyl carboxyl groups grafted on interface electrodes, facilitates successive adsorption insertion H+ and/or H3O+ even proton-deficient usage electrolytes obviates challenge, achieving promising that otherwise rapidly loses capacity strong acids. MoO3//0.01 M H2SO4//CuFe-TBA full delivers 109.1 mAh g–1 after long cycling 91.18% retention. This work opens avenue for rational design low-corrosion long-life aqueous batteries.

Language: Английский

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Ladder‐Type Redox‐Active Polymer Achieves Ultra‐stable and Fast Proton Storage in Aqueous Proton Batteries

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(44)

Published: July 31, 2024

Abstract A ladder‐type rigid‐coplanar polymer with highly ordered molecular arrangement has been designed via a covalent cycloconjugation conformational strategy. Benefitting from the extended π‐electron delocalization in aromatic polymeric backbone, prepared exhibits fast intra‐chain charge transport along chain, realizing extraordinary proton‐storage capability aqueous proton batteries.Affordable and safe batteries (APBs) unique “Grotthuss mechanism,” are very significant for advancing carbon neutrality initiatives. While organic polymers offer robust adaptable framework that is well‐suited APB electrodes, limited redox capacity constrained their broader application. Herein, (PNMZ) strategy optimized electronic structure within high‐aromaticity skeleton. As result, exceptional kinetics, which evidenced by in‐operando monitoring techniques theoretical calculations. It achieves remarkable of 189 mAh g −1 at 2 excellent long‐term cycling stability, approximately 97.8 % retention over 10,000 cycles. Finally, high‐performance all‐polymer device successfully constructed desirable 99.7 after 6,000 cycles high energy density 56.3 Wh kg .

Language: Английский

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Zinc‐Ion and Proton as Joint Charge Carriers of S‐MoO₂ for High‐Capacity Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(7)

Published: Oct. 30, 2023

Abstract Molybdenum‐based materials are regarded as promising candidates for aqueous zinc‐ion batteries (AZIBs) because of their multi‐valences and high specific capacity. However, the structural instability MoS 2 sluggish reaction kinetics MoO restrict further development in AZIBs. Herein, with situ inherited sulfur atoms (S‐MoO ) is successfully prepared by heat treatment static air. Benefiting from synergistic effects S introduced O vacancies, S‐MoO exhibits higher specific/rate capacities (236 mAh g −1 at 0.1 A 105 5.0 better cycling stability (81% capacity retention after 2000 cycles 2.0 than perfect . More significantly, electrochemical quartz crystal microbalance (EQCM) ex spectroscopic techniques comprehensively elucidate that proton joint charge carriers insert/extract into/from through (011) (020) planes reversibility. This work provides a guideline understanding multi‐ion storage mechanism cathode high‐capacity

Language: Английский

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