Proton‐Conductive Supramolecular Hydrogen‐Bonded Organic Superstructures for High‐Performance Zinc‐Organic Batteries

Song, Ziyang; Liu, Miao; Lv, Yaokang; Li, Liangchun; Gan, Lihua

doi:10.1002/ange.202219136

Cited by 7 publications

(3 citation statements)

References 93 publications

(2 reference statements)

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“…Reduced density gradient (RDG) simulations were carried out by using the Multiwfn program, where the RDG value provides the interaction strength, while the sign( l 2 ) r value shows the interaction types 42 . Large and negative values of sign( l 2 ) r are suggestive of H-bond interactions, and values near zero indicate π-π stacking interactions 43 . The colored gradient isosurface map intuitively exhibits the interaction area and corresponding strength.…”

Section: Methodsmentioning

confidence: 99%

Tuning electron delocalization of hydrogen-bonded organic framework cathode for high-performance zinc-organic batteries

Li,

Xu,

Zhang

et al. 2023

Nat Commun

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Stable cathodes with multiple redox-active centres affording a high energy density, fast redox kinetics and a long life are continuous pursuits for aqueous zinc-organic batteries. Here, we achieve a high-performance zinc-organic battery by tuning the electron delocalization within a designed fully conjugated two-dimensional hydrogen-bonded organic framework as a cathode material. Notably, the intermolecular hydrogen bonds endow this framework with a transverse two-dimensional extended stacking network and structural stability, whereas the multiple C = O and C = N electroactive centres cooperatively trigger multielectron redox chemistry with super delocalization, thereby sharply boosting the redox potential, intrinsic electronic conductivity and redox kinetics. Further mechanistic investigations reveal that the fully conjugated molecular configuration enables reversible Zn2+/H+ synergistic storage accompanied by 10-electron transfer. Benefitting from the above synergistic effects, the elaborately tailored organic cathode delivers a reversible capacity of 498.6 mAh g−1 at 0.2 A g−1, good cyclability and a high energy density (355 Wh kg−1).

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Section: Methodsmentioning

confidence: 99%

Tuning electron delocalization of hydrogen-bonded organic framework cathode for high-performance zinc-organic batteries

Li,

Xu,

Zhang

et al. 2023

Nat Commun

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show abstract

“…In addition, the formation of H-bonding can also prevent the sublimation of small molecule quinones, such as tetraamino-p-benzoquinone (TABQ), as demonstrated in Figure 9B. 47 Recently, Song et al 56 9C). The self-assembly of the planar structure generates well-defined 3D superstructures via out-of-plane π-π stacking.…”

Section: Forming Intermolecular Interactionsmentioning

confidence: 99%

mentioning

confidence: 99%

Aqueous Zn−organic batteries: Electrochemistry and design strategies

Ji,

Du,

Liang

et al. 2023

Battery Energy

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Organic electroactive materials are increasingly recognized as promising cathode materials for aqueous zinc–ion batteries (AZIBs), owing to their structural diversity and renewable nature. Despite this, the electrochemistry of these organic cathodes in AZIBs is still less than optimal, particularly in aspects such as output voltage, cyclability, and rate performance. In this review, we provide an overview of the evolutionary history of organic cathodes in AZIBs and elucidate their charge‐storage mechanisms. We then delve into the strategies to overcome the prevailing challenges faced by aqueous Zn−organic batteries, including low achievable capacity and output voltage, poor cycling stability, and rate performance. Design strategies to enhance cell performance include tailoring molecular structure, engineering electrode microstructure, and modulation of electrolyte composition. Finally, we highlight that future research directions should cover performance evaluation under practical conditions and the recycling and reuse of organic electrode materials.

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Challenges and Opportunities for Proton Batteries: From Electrodes, Electrolytes to Full‐Cell Applications

Wu,

Guo,

Zhao

2024

Adv Funct Materials

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Proton batteries have emerged as a promising solution for grid‐scale energy storage benefiting their high safety and abundant raw materials. The battery chemistry based on proton‐ions is intrinsically advantageous in integrating fast diffusion kinetics and high capacities, thus offering great potential to break through the energy limit of capacitors and the power limit of traditional batteries. Significant efforts have been dedicated to advancing proton batteries, leading to successive milestones in recent years. Herein, the recent progress of proton batteries is summarized and insights into the challenges in electrodes, electrolytes and future opportunities for enhancing full‐cell applications are provided. The fundamentals of electrochemical proton storage and representative faradaic electrodes are discussed, delving into their current limitations in mechanism studies and electrochemical performances. Subsequently, the classification, challenges, and strategies for improving protonic electrolytes are addressed. Finally, the state‐of‐the‐art proton full‐cells are explored, and views on the rational design of proton battery devices for achieving high‐performance aqueous energy storage are offered.

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Proton‐Conductive Supramolecular Hydrogen‐Bonded Organic Superstructures for High‐Performance Zinc‐Organic Batteries

Cited by 7 publications

References 93 publications

Tuning electron delocalization of hydrogen-bonded organic framework cathode for high-performance zinc-organic batteries

Tuning electron delocalization of hydrogen-bonded organic framework cathode for high-performance zinc-organic batteries

Aqueous Zn−organic batteries: Electrochemistry and design strategies

Challenges and Opportunities for Proton Batteries: From Electrodes, Electrolytes to Full‐Cell Applications

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