A bio-inspired multifunctional interface layer for high performance zinc-ion batteries <i>via</i> novel <i>in situ</i> electropolymerization

Wang, Jun; Zou, Xiuyang; Song, Lina; Hou, Yang; Lu, Jianguo; Gao, Xiang; He, Qinggang; Ren, Yongyuan; Zhan, Xiaoli; Zhang, Qinghua

doi:10.1039/d3ta04886a

Cited by 12 publications

(8 citation statements)

References 55 publications

(75 reference statements)

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“…Initially translucent, the hydrogel gradually materialized on the anode under the influence of an electric current. As the functional groups underwent reduction, carbon–carbon double bonds accepted electrons and underwent opening for addition polymerization [35–36] . This was evidenced by Raman mapping (Figure 1b).…”

Section: Resultsmentioning

confidence: 89%

In‐Situ Spontaneous Electropolymerization Enables Robust Hydrogel Electrolyte Interfaces in Aqueous Batteries

Chen,

Xiao,

Yang

et al. 2024

Angew Chem Int Ed

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Hydrogels hold great promise as electrolytes for emerging aqueous batteries, for which establishing a robust electrode‐hydrogel interface is crucial for mitigating side reactions. Conventional hydrogel electrolytes fabricated by ex‐situ polymerization through either thermal stimulation or photo exposure cannot ensure complete interfacial contact with electrodes. Herein, we introduce an in‐situ electropolymerization approach for constructing hydrogel electrolytes. The hydrogel is spontaneously generated during the initial cycling of the battery, eliminating the need of additional initiators for polymerization. The involvement of electrodes during the hydrogel synthesis yields well‐bonded and deep infiltrated electrode‐electrolyte interfaces. As a case study, we attest that, the in‐situ formed polyanionic hydrogel in Zn‐MnO2 battery substantially improves the stability and kinetics of both Zn anode and porous MnO2 cathode owing to the robust interfaces. This research provides insight to the function of hydrogel electrolyte interfaces and constitute a critical advancement in designing highly durable aqueous batteries.

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Section: Resultsmentioning

confidence: 89%

In‐Situ Spontaneous Electropolymerization Enables Robust Hydrogel Electrolyte Interfaces in Aqueous Batteries

Chen,

Xiao,

Yang

et al. 2024

Angew Chem Int Ed

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“…Wang et al electro-polymerized an inorganic conductive layered MXene and organic sodium polyacrylate (PAAS) composite film on the surface of zinc metal (Figure 5e). [18] SEM images show that the MXene@PAAS composite film closely adheres to the zinc metal, with a thickness of approximately 10 μm (Figure 5f). The composite film can effectively adsorb zinc ions, enabling the uniform deposition of zinc ions on the negative electrode surface and eliminating the growth of dendrites.…”

Section: Other Applicationsmentioning

confidence: 99%

“…In addition to facilitating the preparation of self-supporting electrodes, electropolymerization can be employed to design and create protective layers on the external electrode surface, [16] develop intermediary layers between electrodes and separators, [17,18] or craft modifying layers for current collectors. [19] All these approaches are conducted externally to the electrode.…”

Section: Introductionmentioning

confidence: 99%

“…[25] Expanding this strategy to the realm of energy storage devices, protective layers for battery electrodes have been developed. [18] Apart from organic monomers, electropolymerization of coordination polymers [26] and conductive fullerene polymers [27] has also been explored. The development of these novel strategies significantly broadens the application scope of electropolymerization.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, inorganic electrodeposition can be integrated withorganic electropolymerization, enabling both processes to occur simultaneously, to fabricate hybrid inorganic‐organic metal protective layers [25] . Expanding this strategy to the realm of energy storage devices, protective layers for battery electrodes have been developed [18] . Apart from organic monomers, electropolymerization of coordination polymers [26] and conductive fullerene polymers [27] has also been explored.…”

Section: Introductionmentioning

confidence: 99%

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Recent Progress of the Application of Electropolymerization in Batteries and Supercapacitors: Specific Design of Functions in Electrodes

Lin,

Wu,

2024

ChemElectroChem

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Electrochemical energy storage devices play a vital role in human life, and the requirements for their sustainability and environmental friendliness have been increasing in recent years. Electropolymerization, as a convenient method for polymer synthesis, has attracted increasing attentions in applications in the field of energy storage and conversion. It is not only commonly employed for the fabrication of various self‐supporting electrodes, but also is one of the most promising preparation strategies for organic electrode materials, internal interlayers within electrodes, functional protective layers, and current collector surface modifications. Previously published works have confirmed that the introduction of electropolymerization can effectively improve the electrochemical performance of various energy storage devices. However, there are still challenges in the universality of the synthesis route, in‐depth understanding of interface chemical behavior, and scaled‐up production. This mini review summarizes the main components in electropolymerization, material synthesis mechanisms, and their application principles in batteries and supercapacitors. Additionally, the current challenges and future development directions of electropolymerization have been discussed, offering some perspectives for further exploration.

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In Situ Assembly of Metal‐Organic Coordination Polymer Layers Enables Highly Reversible Zn Anodes with a Long Cycle Life of over 6900 h

Shen,

Fang,

et al. 2024

Adv Funct Materials

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Zn anodes in aqueous zinc‐ion batteries chronically suffer from pernicious side reactions and ineluctable dendrite growth, resulting in inadequate reversibility and suboptimal Coulombic efficiency (CE) and impeding commercialization. Herein, a multifunctional metal–organic coordination polymer layer (FAZ) is constructed on the zinc anode surface (FAZ@Zn) utilizing a simple self‐assembly strategy. The zincophilic FAZ interfacial layer with a high Zn2+ transfer number and low nucleation barrier effectively facilitates the de‐solvation process, supports the rapid transport of zinc ions, and contributes to the preferential growth of Zn (002) crystal planes, enabling dendrite‐free Zn deposition. Furthermore, the FAZ layer, as an interfacial pH regulating layer, effectively inhibits the direct contact between Zn and active water molecules, lowering the severity of side reactions. Consequently, the FAZ@Zn anode furnishes an eminent cycle stability over 6900 h, with a low polarization voltage at 1 mA cm−2 and 1 mA h cm−2 and a boosted CE of 99.88% over 4100 cycles. More encouragingly, when coupled with Na2V6O16·3H2O, the FAZ@Zn anode enables the full cell to deliver satisfactory rate performance and a 97% capacity retention over 1600 cycles. This work provides a simple strategy for the effective preparation of highly reversible zinc anodes for high‐performance aqueous zinc‐ion batteries.

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A bio-inspired multifunctional interface layer for high performance zinc-ion batteries via novel in situ electropolymerization

Abstract: Aqueous Zn-ion batteries (AZIBs) are promising candidates of next generation energy devices owing to their intrinsic security. However, some irreversible issues, such as dendrite growth, hydrogen evolution and parasitic reaction,...

Cited by 12 publications

References 55 publications

In‐Situ Spontaneous Electropolymerization Enables Robust Hydrogel Electrolyte Interfaces in Aqueous Batteries

In‐Situ Spontaneous Electropolymerization Enables Robust Hydrogel Electrolyte Interfaces in Aqueous Batteries

Recent Progress of the Application of Electropolymerization in Batteries and Supercapacitors: Specific Design of Functions in Electrodes

In Situ Assembly of Metal‐Organic Coordination Polymer Layers Enables Highly Reversible Zn Anodes with a Long Cycle Life of over 6900 h

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