A Quinone Anode for Lithium‐Ion Batteries in Mild Aqueous Electrolytes

Jing, Yan; Liang, Yanliang; Gheytani, Saman; Yao, Yan

doi:10.1002/cssc.202000094

Cited by 22 publications

(13 citation statements)

References 44 publications

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“…[ 49–51 ] Moreover, only a moderate promotion of retention property (≈1000 times) has been explored, when WiSE emerged. [ 52,53 ] Some stable polymeric OEMs in ALIBs are also observed over 3000 times, like PPTO and PBDTDS in specific electrolyte conditions, [ 7,54 ] and even up to 50 000 times (≈1000 h) in a hybrid PNTCDA//I − /I 3− battery. [ 55 ] Whereas limited by the absence of aqueous SEI, the cycling retention of most inorganic/organic electrodes is lagging far behind the requirement of future application.…”

Section: Resultsmentioning

confidence: 99%

Solid‐Electrolyte Interphase for Ultra‐Stable Aqueous Dual‐Ion Storage

Lin

Fan

Zhang

et al. 2022

Advanced Energy Materials

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non-flammable nature are of great potential for the grid-energy storage of renewable but intermittent energy sources. [1][2][3] The solid-electrolyte interphase (SEI) plays a crucial role in protecting electrodes in LIBs, endowing LIBs with long-term cycling for commercial applications. As an independent passivation phase deposit on electrode surfaces, the SEI blocks electron transport while enabling ionic conduction. It can passivate the anode and prevent the electrolyte from unfavorable degradation, extending the electrochemical stability window of the electrolyte. As expected, a robust aqueous SEI will hinder water molecules to access the surface of the electrode while allowing for Li + diffusion, thus suppressing the water splitting. Therefore, not only the voltage window of ALIBs would be extended, but also improve the cathodic stability of electrodes. Unfortunately, the SEI is hardly observed in typical ALIBs, owing to none of the dense solid states can be deposited from the water splitting. [4,5] Moreover, the high solubility of ionic compounds (derived from the electrolyte decomposition) in water than in organic electrolytes makes it difficult to maintain a stable SEI. [6] As the absent protection of aqueous SEI, a series of adverse reactions are participated at the interface of the electrode during long cycling, involving the structural collapse or dissolution of materials and/or redox mediators, proton co-intercalation, hydrogen evolution reaction (HER), or other irreversible degradations, thereby inducing to a critical issue for the long-term cycling. [7][8][9] Thanks to the sufficient population of solvation sheath with proper anions of water-in-salt electrolytes (WiSEs), the liquid structure and interfacial reactivity are naturally changed to form a dense SEI and deliver considerable cycling stability, compared favorably with that of the state-of-the-art LIBs. [10][11][12][13] It has been previously reported that the water reduction triggers the precipitation and degradation of bis(trifluoromethanesulfonyl)imide anion (TFSI − ) under negative polarization, followed by the SEI formation. The fate of water at the electrochemical interface is critical. [14][15][16] Nevertheless, the composition and formation mechanism of such dense and protective aqueous SEI are still under debate, which hinders the raising of the electrochemical stability of electrodes in ALIBs.In contrast to the well-explored inorganic anodes, tunable organic electrode materials (OEMs) with extremely high theoretical capacities have attracted great attention, owing to theirThe solid-electrolyte interphase (SEI) is the key component of the electrochemical electrode as a passivation layer, which enables a long calendar life for commercial applications. However, owing to the poor understanding of aqueous SEI in conventional aqueous electrolytes, the adoption of aqueous Li-ion batteries (ALIBs) has been drastically limited. Herein, the construction of a robust aqueous SEI is successfully demonstrated by introducing a ladderized heterocycl...

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Section: Resultsmentioning

confidence: 99%

Solid‐Electrolyte Interphase for Ultra‐Stable Aqueous Dual‐Ion Storage

Lin

Fan

Zhang

et al. 2022

Advanced Energy Materials

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“…The electrochemical performance of aqueous batteries was evaluated using a two-electrode coin cell (CR2032) configuration. PAQS anode was synthesized using a previously reported procedure ( 58 ). PAQS, Ketjen black carbon, and polytetrafluoroethylene were mixed in a mass ratio of 6:3:1 with the aid of ethanol.…”

Section: Methodsmentioning

confidence: 99%

A cellulose-derived supramolecule for fast ion transport

et al. 2022

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Supramolecular frameworks have been widely synthesized for ion transport applications. However, conventional approaches of constructing ion transport pathways in supramolecular frameworks typically require complex processes and display poor scalability, high cost, and limited sustainability. Here, we report the scalable and cost-effective synthesis of an ion-conducting (e.g., Na + ) cellulose-derived supramolecule (Na-CS) that features a three-dimensional, hierarchical, and crystalline structure composed of massively aligned, one-dimensional, and ångström-scale open channels. Using wood-based Na-CS as a model material, we achieve high ionic conductivities (e.g., 0.23 S/cm in 20 wt% NaOH at 25 °C) even with a highly dense microstructure, in stark contrast to conventional membranes that typically rely on large pores (e.g., submicrometers to a few micrometers) to obtain comparable ionic conductivities. This synthesis approach can be universally applied to a variety of cellulose materials beyond wood, including cotton textiles, fibers, paper, and ink, which suggests excellent potential for a number of applications such as ion-conductive membranes, ionic cables, and ionotronic devices.

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“…Only at pH values far exceeding the acid dissociation constants of the corresponding hydroquinones, was the proton-coupled electron-transfer process effectively avoided such that organic electrodes could exhibit the highest capacity and most stable cycle life. 256 This study provided an informative method for determining the optimal pH of aqueous electrolytes in organic batteries.…”

Section: Effects Of Phmentioning

confidence: 99%

Electrolytes in Organic Batteries

et al. 2023

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Organic batteries using redox-active polymers and small organic compounds have become promising candidates for next-generation energy storage devices due to the abundance, environmental benignity, and diverse nature of organic resources. To date, tremendous research efforts have been devoted to developing advanced organic electrode materials and understanding the material structure–performance correlation in organic batteries. In contrast, less attention was paid to the correlation between electrolyte structure and battery performance, despite the critical roles of electrolytes for the dissolution of organic electrode materials, the formation of the electrode–electrolyte interphase, and the solvation/desolvation of charge carriers. In this review, we discuss the prospects and challenges of organic batteries with an emphasis on electrolytes. The differences between organic and inorganic batteries in terms of electrolyte property requirements and charge storage mechanisms are elucidated. To provide a comprehensive and thorough overview of the electrolyte development in organic batteries, the electrolytes are divided into four categories including organic liquid electrolytes, aqueous electrolytes, inorganic solid electrolytes, and polymer-based electrolytes, to introduce different components, concentrations, additives, and applications in various organic batteries with different charge carriers, interphases, and separators. The perspectives and outlook for the future development of advanced electrolytes are also discussed to provide a guidance for the electrolyte design and optimization in organic batteries. We believe that this review will stimulate an in-depth study of electrolytes and accelerate the commercialization of organic batteries.

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A Quinone Anode for Lithium‐Ion Batteries in Mild Aqueous Electrolytes

Cited by 22 publications

References 44 publications

Solid‐Electrolyte Interphase for Ultra‐Stable Aqueous Dual‐Ion Storage

Solid‐Electrolyte Interphase for Ultra‐Stable Aqueous Dual‐Ion Storage

A cellulose-derived supramolecule for fast ion transport

Electrolytes in Organic Batteries

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