Simultaneous pre-intercalation of caesium and sodium ions into vanadium oxide bronze nanowires for high-performance aqueous zinc-ion batteries

Tian, Hanqin; He, Yanan; Wang, Lin; Lai, Yuannan; Wang, Jianwei; Xiang, Hanqing; Zhao, Wei; Zhang, Lin

doi:10.1039/d2qm00420h

Cited by 8 publications

(4 citation statements)

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“…A higher V 4+ /V 5+ ratio signifies a greater presence of the V 4+ valence and the concurrent formation of oxygen vacancies. According to the existing literature, mixed-valence (V 4+ /V 5+ ) vanadium oxides typically exhibit improved electronic conductivity due to charge transfer between different valence ions, thus providing more accessible sites for Zn 2+ insertion . The deconvoluted O 1s spectrum, as exhibited in Figure d, primarily reveals the existence of V–O, O vacancy, and H 2 O as indicated by the signals located around 530.4, 531.1, and 533.1 eV, respectively.…”

Section: Resultsmentioning

confidence: 79%

“…According to the existing literature, mixed-valence (V 4+ /V 5+ ) vanadium oxides typically exhibit improved electronic conductivity due to charge transfer between different valence ions, thus providing more accessible sites for Zn 2+ insertion. 41 The deconvoluted O 1s spectrum, as exhibited in Figure 1d 42 The signals around 399.9 and 401.8 eV, as shown in Figure S1g,h, + (see Figure S2). The thermogravimetric (TG) analysis shown in Figure 1f indicates that besides the weight loss due to the dehydration for the physically absorbed water below 100 °C (8.1%) and the subsequent desorption for the lattice water (3.1%), a 1.5% weight loss resulting from the partial release of NH 3 is observed between 325 and 400 °C.…”

Section: Resultsmentioning

confidence: 96%

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Vanadium Oxide Cathode Coinserted by Ni²⁺ and NH₄⁺ for High-Performance Aqueous Zinc-Ion Batteries

Shen,

Li,

Dong

et al. 2024

ACS Appl. Mater. Interfaces

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Vanadium-based oxides have garnered significant attention as cathode materials for aqueous zinc-ion batteries (AZIBs) because of their high theoretical capacity and low cost. However, the limited reaction kinetics and poor long-term cycle stability hinder their widespread application. In this paper, we propose a novel approach by coinserting Ni 2+ and NH 4 + ions into V 2 O 5 •3H 2 O, i.e., NNVO. Structural characterization shows that the coinsertion of Ni 2+ and NH 4+ not only extends the interlayer spacing of V 2 O 5 •3H 2 O but also significantly promotes the transport kinetics of Zn 2+ because of the synergistic "pillar" effect of Ni 2+ and NH 4 + , as well as the increased oxygen vacancies that effectively lower the energy barrier for Zn 2+ insertion. As a result, the AZIBs with an NNVO electrode exhibit a high capacity of 398.1 mAh g −1 (at 1.0 A g −1 ) and good cycle stability with 89.1% capacity retention even after 2000 cycles at 5.0 A g −1 . At the same time, a highly competitive energy density of 262.9 Wh kg −1 is delivered at 382.9 W kg −1 . Considering the simple scheme and the resultant high performance, this study may provide a positive attempt to develop high-performance AZIBs.

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Section: Resultsmentioning

confidence: 79%

Section: Resultsmentioning

confidence: 96%

Vanadium Oxide Cathode Coinserted by Ni²⁺ and NH₄⁺ for High-Performance Aqueous Zinc-Ion Batteries

Shen,

Li,

Dong

et al. 2024

ACS Appl. Mater. Interfaces

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“…The accommodation of Na + ions as pillars is in favor of forming the two‐dimensional tunnel structure of vanadium oxide nanowires, composed of VO layers connected by the corner‐sharing oxygen atoms of ladder chains. As a positive indication of the electrochemical performance, Na 0.33 Cs 0.03 V 2 O 5 demonstrated a reversible phase change during the cycling process after a conversion reaction in the initial discharge process 83 …”

Section: Strategies To Improve Performancementioning

confidence: 96%

“…As a positive indication of the electrochemical performance, Na 0.33 Cs 0.03 V 2 O 5 demonstrated a reversible phase change during the cycling process after a conversion reaction in the initial discharge process. 83 To date, several pieces of research work have suggested that it is feasible to intercalate two different types of metal ions at the same time through a one-step process, for example, intercalation by hydrothermal method. Nevertheless, one of the key unresolved debates is exactly how the charge storage of the guest-ion reconstructed vanadium oxides will change with an increase in the interplanar spacing, which is indeed not well understood.…”

Section: Multi-ion Co-intercalationmentioning

confidence: 99%

Better engineering layered vanadium oxides for aqueous zinc‐ion batteries: Going beyond widening the interlayer spacing

et al. 2023

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Aqueous zinc‐ion batteries (ZIBs) are regarded as among the most promising candidates for large‐scale grid energy storage, owing to their high safety, low costs, and environmental friendliness. Over the past decade, vanadium oxides, which are exemplified by V2O5, have been widely developed as a class of cathode materials for ZIBs, where the relatively high theoretical capacity and structural stability are among the main considerations. However, there are considerable challenges in the construction of vanadium‐based ZIBs with high capacity, long lifespan, and excellent rate performance. Simple widenings of the interlayer spacing in the layered vanadium oxides by pre‐intercalations appear to have reached their limitations in improving the energy density and other key performance parameters of ZIBs, although various metal ions (Na+, Ca2+, and Al3+) and even organic cations/groups have been explored. Herein, we discuss the advances made more recently, and also the challenges faced by the high‐performance vanadium oxides (V2O5‐based) cathodes, where there are several strategies to improve their electrochemical performance ranging from the new structural designs down to sub‐nano‐scopic/molecular/atomic levels, including cation pre‐intercalation, structural water optimization, and defect engineering, to macroscopic structural modifications. The key principles for an optimal structural design of the V2O5‐based cathode materials for high energy density and fast‐charging aqueous ZIBs are examined, aiming at paving the way for developing energy storage designed for those large scales, high safety, and low‐cost systems.

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Vanadium‐Based Cathodes Modification via Defect Engineering: Strategies to Support the Leap from Lab to Commercialization of Aqueous Zinc‐Ion Batteries

Zeng,

Gong,

Wang

et al. 2024

Advanced Energy Materials

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In advancing aqueous zinc‐ion batteries (AZIBs) toward commercial viability, vanadium (V)‐based cathodes are pivotal, offering broad redox ranges, and compatibility with water's electrochemical limits. Despite their great potentials, V‐based cathodes face challenges in transitioning from lab to commercialization. Defect engineering is exploited as a pivotal technique that endows the cathodes with unexpected physical and chemical properties to break the intrinsic bottleneck and, in turn, enhance their electrochemical performances. This review delves into the role of defect engineering on V‐based materials, underscoring its potential in mitigating the critical challenges. It starts by encapsulating the current characteristics of V‐based cathodes in AZIBs. Research efforts related to various defects, such as oxygen vacancies, cation vacancies, cationic doping, anionic doping, water intercalation, and lattice disorders/amorphization, are then rationalized and discussed. The fabrication and characterization techniques of defect engineering are also summarized. By integrating the conclusions from existing works and tailoring defect engineering strategies, a few perspectives are provided for systematically employing defect engineering to pave the way for a more efficient transition of these promising materials from laboratory breakthroughs to commercially viable energy storage solutions.

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Simultaneous pre-intercalation of caesium and sodium ions into vanadium oxide bronze nanowires for high-performance aqueous zinc-ion batteries

Abstract: Vanadium oxide derivatives as cathode materials of aqueous zinc-ion batteries have received incremental attention owing to their multivalences of vanadium and open-frame crystal structures. Herein, the lightweight and heavyweight alkali...

Cited by 8 publications

References 56 publications

Vanadium Oxide Cathode Coinserted by Ni²⁺ and NH₄⁺ for High-Performance Aqueous Zinc-Ion Batteries

Vanadium Oxide Cathode Coinserted by Ni²⁺ and NH₄⁺ for High-Performance Aqueous Zinc-Ion Batteries

Better engineering layered vanadium oxides for aqueous zinc‐ion batteries: Going beyond widening the interlayer spacing

Vanadium‐Based Cathodes Modification via Defect Engineering: Strategies to Support the Leap from Lab to Commercialization of Aqueous Zinc‐Ion Batteries

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Simultaneous pre-intercalation of caesium and sodium ions into vanadium oxide bronze nanowires for high-performance aqueous zinc-ion batteries

Abstract: Vanadium oxide derivatives as cathode materials of aqueous zinc-ion batteries have received incremental attention owing to their multivalences of vanadium and open-frame crystal structures. Herein, the lightweight and heavyweight alkali...

Cited by 8 publications

References 56 publications

Vanadium Oxide Cathode Coinserted by Ni2+ and NH4+ for High-Performance Aqueous Zinc-Ion Batteries

Vanadium Oxide Cathode Coinserted by Ni2+ and NH4+ for High-Performance Aqueous Zinc-Ion Batteries

Better engineering layered vanadium oxides for aqueous zinc‐ion batteries: Going beyond widening the interlayer spacing

Vanadium‐Based Cathodes Modification via Defect Engineering: Strategies to Support the Leap from Lab to Commercialization of Aqueous Zinc‐Ion Batteries

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Product

Resources

About

Vanadium Oxide Cathode Coinserted by Ni²⁺ and NH₄⁺ for High-Performance Aqueous Zinc-Ion Batteries

Vanadium Oxide Cathode Coinserted by Ni²⁺ and NH₄⁺ for High-Performance Aqueous Zinc-Ion Batteries