Organic Zinc‐Ion Battery: Planar, π‐Conjugated Quinone‐Based Polymer Endows Ultrafast Ion Diffusion Kinetics

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(51)

Published: Oct. 26, 2022

A novel poly(phenazine-alt-pyromellitic anhydride) (PPPA) has been successfully designed and synthesized via a condensation polymerization strategy as promising cathode material in organic zinc-ion batteries. Electrochemical quartz crystal microbalance (EQCM), FTIR XPS characterizations verify reversible Zn2+ -coordination mechanism our PPPA cathode. Intriguingly, an ultrahigh diffusion coefficient of 1.2×10-7 cm2 s-1 was found this large π-conjugated system, which is the highest one among all materials for Theoretical calculations reveal extended plane sample results significant reduction on energy gap, effectively accelerating intramolecular electron transfer during charge/discharge process. Our finding provides insights to achieve high transport kinetics by design planar polymer system.

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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Progress and prospect of vanadates as aqueous zn-ion batteries cathodes

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 498, P. 215461 - 215461

Published: Oct. 1, 2023

Language: Английский

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A universal fabrication strategy for MOFs-driven vanadium-based composite for aqueous zinc ion batteries

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 482, P. 148836 - 148836

Published: Jan. 18, 2024

Language: Английский

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Universal multifunctional hydrogen bond network construction strategy for enhanced aqueous Zn2+/proton hybrid batteries

Nano Energy, Journal Year: 2022, Volume and Issue: 100, P. 107539 - 107539

Published: June 26, 2022

Language: Английский

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Vanadium hexacyanoferrate nanoparticles connected by cross-linked carbon nanotubes conductive networks for aqueous zinc-ion batteries

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 448, P. 137657 - 137657

Published: June 18, 2022

Language: Английский

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High performance of Mn-doped VO2 cathode for aqueous zinc-ion batteries: An insight into Zn2+ storage mechanism

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139115 - 139115

Published: Sept. 12, 2022

Language: Английский

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3D Printed Flexible Zinc Ion Micro‐Batteries with High Areal Capacity Toward Practical Application

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

Published: Nov. 1, 2023

Abstract Printed zinc ion micro‐batteries (PZIMBs) possess characteristics such as miniaturization, customizability, and affordability, making them highly promising for the field of flexible electronic devices. Nevertheless, current development PZIMBs is seriously hindered by their limited areal capacity. In this study, with a high capacity are conducted based on 3D printing technology optimizing material properties, electrode ink formulation, parameters. The cathode material, polyvinylpyrrolidone‐induced ammonium vanadate (P‐NVO) nanobelt, exhibits 457.3 mAh g −1 at 0.1 mA , along good cycling performance rate capability. double‐network hydrogel electrolyte, composed crosslinked polyacrylamide‐polyvinylpyrrolidone (PAM‐PVP electrolyte), demonstrates excellent ionic conductivity (107.22 mS cm ), stretchability (970%), viscosity. constructed exhibit 4.02 −2 0.5 mechanical flexibility. Moreover, through integration pressure sensors, an interactive system developed that resembles skin, enables practical applications wearable This study presents novel approach fabricating capacity, thereby contributing to propelling advancement energy storage.

Language: Английский

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Self‐Transformation Strategy Toward Vanadium Dioxide Cathode For Advanced Aqueous Zinc Batteries

Small, Journal Year: 2023, Volume and Issue: 19(24)

Published: March 10, 2023

In the lithium-dominated era, rechargeable Zn batteries are emerging as a competitive alternative. However, sluggish kinetics of ion diffusion and structural destruction cathode materials have thus far hampered realization future large-scale energy storage. Herein, an in situ self-transformation approach is reported to electrochemically boost activity high-temperature, argon-treated VO2 (AVO) microsphere for effective The presynthesized AVO with hierarchical structure high crystallinity allows efficient electrochemical oxidation water insertion induce self-phase transformation into V2 O5 ·nH2 O within first charging process, which leads rich active sites fast kinetics. Using cathode, outstanding discharge capacity 446 mAh g-1 at 0.1 A , rate capability 323 10 excellent cycling stability 4000 cycles 20 retention demonstrated. Importantly, such zinc-ion phase self-transition can also perform well high-loading, sub-zero temperature, or pouch cell conditions practical application. This work not only paves new route design storage devices, but broadens horizons aqueous zinc-supplied cathodes.

Language: Английский

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Polar Organic Molecules Inserted in Vanadium Oxide with Enhanced Reaction Kinetics for Promoting Aqueous Zinc‐Ion Storage

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(9)

Published: Nov. 21, 2023

Abstract The Zn 2+ sluggish kinetics resulting from high desolvation barriers of Zn(H 2 O) 6 in the electrode/electrolyte interface restricts practical application Zn‐ion batteries (ZIBs). Herein, ethylene glycol (EG) molecules are inserted into V O 5 ·3H to form V‐EG nanoarray structures improve diffusion rate. Unlike most efforts focused on improving interlayer spacing and structural stability, influence EG storage process main goals. Based experimental theoretical analysis, confirmed participate reshaping morphology solvation structure, which is beneficial enhance reaction specific capacity. polar group molecule leads it anchored VO skeleton decreases energy, while steric hindrance low polarity liberalizes transfer reversibly skeleton. Therefore, delivers a higher ion coefficient lower kinetic barrier. As expected, exhibits capacity 553 mA h g −1 at 0.3 A long cycle life 10 000 cycles 20 . This work provides strategy decrease energy cathode materials toward advanced ZIBs.

Language: Английский

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