Dynamic Balance of Partial Charge for Small Organic Compound in Aqueous Zinc‐Organic Battery DOI

Tianjiang Sun,

Zhehan Yi, Weijia Zhang

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(47)

Published: July 8, 2023

Abstract Organic cathodes for aqueous zinc‐ion batteries (AZIBs) feature intrinsic flexibility and favorable kinetics, but they suffer from high solubility. Herein, a partial charge regulation strategy is deployed by designing small organic molecule with extended π ‐conjugated plane, namely benzo[i]benzo[6′,7′]quinoxalino[2′,3′:9,10]phenanthro[4,5‐abc]phenazine‐5,10,16,21‐tetraone (PTONQ). The equalization of active sites induced the plane PTONQ combined aromaticity renders low solubility, fast transfer, structural stability. fabricated Zn//PTONQ battery cycles more than 500 h at 175 mA g −1 capacity reduction, charged/discharged anti‐freeze performance (below ‐20°C). By series ex situ characterizations, it attested that originates mainly Zn 2+ insertion/removal without H + incorporation, which also accounts formation x (CF 3 SO ) y (OH) 2x‐y ·nH 2 O by‐products. This result benefits understanding by‐product mechanism cathode paves new way to advance Zn‐organic batteries.

Language: Английский

Toward practical aqueous zinc-ion batteries for electrochemical energy storage DOI Creative Commons
Chang Li, Shuo Jin, Lynden A. Archer

et al.

Joule, Journal Year: 2022, Volume and Issue: 6(8), P. 1733 - 1738

Published: Aug. 1, 2022

Language: Английский

Citations

421
Building better aqueous Zn-organic batteries DOI
Xuanyang Li, Ming Jen Tan, Yuan Wang

et al.

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

Citations

159
Anionic Co‐insertion Charge Storage in Dinitrobenzene Cathodes for High‐Performance Aqueous Zinc–Organic Batteries DOI
Ziyang Song, Ling Miao, Hui Duan

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(35)

Published: July 4, 2022

Abstract Highly active and stable cathodes are critical for aqueous Zn–organic batteries with high capacity, fast redox kinetics, long life. We herein report para ‐, meta ortho ‐dinitrobenzene ( p m o ‐DB) containing two successive two‐electron processes, as cathode materials to boost the battery performance. Theoretical experimental studies reveal that nitro constitutional isomerism is key zincophilic activity kinetics. ‐DB hosted in carbon nanoflower harvests a capacity of 402 mAh g −1 superior stability up 25 000 cycles at 5 A , giving energy density 230 Wh kg . An anionic co‐insertion charge storage mechanism proposed, entailing two‐step (de)coordination Zn(CF 3 SO ) + oxygen. Besides, dinitrobenzene can be electrochemically optimized by side group regulation via implanting electron‐withdrawing motifs. This work opens new window design multielectron nitroaromatics batteries.

Language: Английский

Citations

137
Inhibition of Vanadium Cathodes Dissolution in Aqueous Zn‐Ion Batteries DOI Creative Commons
Yuhang Dai, Chengyi Zhang, Jianwei Li

et al.

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

Citations

133
Synergistic Manipulation of Hydrogen Evolution and Zinc Ion Flux in Metal‐Covalent Organic Frameworks for Dendrite‐free Zn‐based Aqueous Batteries DOI
Can Guo, Jie Zhou, Yu‐Ting Chen

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(41)

Published: Aug. 8, 2022

Zn-based aqueous batteries have attracted much attention because of their high theoretical-capacity, safety, and low-cost, yet the H2 -evolution, qualification or inhibition mechanism investigations that are closely related to dendrite-growth rare challenging. Herein, a series zincophilic metal-covalent organic frameworks (e.g., Zn-AAn-COF, Zn-DAAQ-COF, Zn-DAA-COF) been explored as model-platforms manipulate -evolution Zn2+ flux. Best them, Zn-AAn-COF based cell only produces 0.002 mmol h-1 cm-2 , which is >2 orders magnitude lower than bare Zn. Noteworthy, it affords stability for 3000 cycles (overpotential, <79.1 mV) at 20 mA in symmetric-cell enhanced cycling-stability up 6000 2000 g-1 assembled full-battery. Besides, mechanistic characterizations show can enhance energy-barrier homogenize ion-distribution electric-filed achieve performance.

Language: Английский

Citations

125
Stabilization of Zn anode via a multifunctional cysteine additive DOI
Meng Qi,

Ruyi Zhao,

Penghui Cao

et al.

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 447, P. 137471 - 137471

Published: June 11, 2022

Language: Английский

Citations

120
Organic Zinc‐Ion Battery: Planar, π‐Conjugated Quinone‐Based Polymer Endows Ultrafast Ion Diffusion Kinetics DOI

Fei Ye,

Qiang Liu, Hongliang Dong

et al.

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

Citations

120
In Situ Growth of Covalent Organic Framework Nanosheets on Graphene as the Cathode for Long‐Life High‐Capacity Lithium‐Ion Batteries DOI
Xiaolin Liu, Yucheng Jin, Hailong Wang

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(37)

Published: July 29, 2022

The poor electronic and ionic conductivities of covalent organic frameworks (COFs) severely restrict the development COF-based electrodes for practical rechargeable batteries, therefore inspiring more research interest from direction both material synthesis technology. Herein, a dual-porous COF, USTB-6, with good crystallinity rich redox-active sites is conceived fabricated by polymerization 2,3,8,9,14,15-hexa(4-formylphenyl)diquinoxalino [2,3-a:2',3'-c]phenazine 2,7-diaminopyrene-4,5,9,10-tetraone. In particular, heterogeneous same starting materials in presence graphene affords uniformly dispersed COF nanosheets thickness 8.3 nm on conductive carbon substrate, effectively enhancing conductivity electrode. Such graphene-supported USTB-6 cathode when used lithium-ion battery exhibits specific capacity 285 mA h g-1 at current density 0.2 C excellent rate performance prominent 188 10 C. More importantly, 170 retained using after 6000 cycles charge discharge measurement 5

Language: Английский

Citations

117
Challenges and Perspectives of Organic Multivalent Metal‐Ion Batteries DOI
Yuan Chen, Kun Fan,

Yanbo Gao

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(52)

Published: April 1, 2022

Abstract Rechargeable organic multivalent metal‐ion batteries (MMIBs) have attracted a surge of interest as promising alternatives for large‐scale energy storage applications because they can combine the advantages both electrodes and batteries. However, development MMIBs is hampered by many factors, which mean lag far behind alkali‐metal‐ (e.g., Li‐, Na‐, K‐) ion Herein, challenges that are specifically faced analyzed strategies probably solve such then discussed. As special challenge facing, charge‐storage mechanism particularly underlined to deeply understand structure–property relationships guiding future design high‐performance MMIBs. The perspectives thereby elaborated in this review with outlook practical

Language: Английский

Citations

100
MXene‐Boosted Imine Cathodes with Extended Conjugated Structure for Aqueous Zinc‐Ion Batteries DOI

Xiaoshuang Wang,

Yanan Liu, Zengyan Wei

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(50)

Published: Oct. 21, 2022

Organic molecules have been considered promising energy-storage materials in aqueous zinc-ion batteries (ZIBs), but are plagued by poor conductivity and structural instability because of the short-range conjugated structure low molecular weight. Herein, an imine-based tris(aza)pentacene (TAP) with extended effects along CN backbones is proposed, which situ injected into layered MXene to form a TAP/Ti3 C2 Tx cathode. Theoretical electrochemical analyses reveal selective H+ /Zn2+ co-insertion/extraction mechanism TAP, ascribed steric effect on availability active sites. Moreover, Ti3 , as conductive scaffold, favors fast Zn2+ diffusion boost electrode kinetics TAP. Close electronic interactions between TAP preserve integrity during repeated charge/discharge. Accordingly, cathode delivers high reversible capacity 303 mAh g-1 at 0.04 A ZIBs, also realizes ultralong lifetime over 10 000 cycles retention 81.6%. Furthermore, flexible Zn||TAP/Ti3 quasi-solid-state electrolyte demonstrate potential application wearable devices. This work offers pivotal guidance create highly stable organic electrodes for advanced ZIBs.

Language: Английский

Citations

96