Principles of interlayer-spacing regulation of layered vanadium phosphates for superior zinc-ion batteries

Hu, Linfeng; Wu, Zeyi; Lu, Chengjie; Ye, Fei; Liu, Qiang; Sun, ZhengMing

doi:10.1039/d1ee01158h

Cited by 163 publications

(106 citation statements)

References 70 publications

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“…b) XRD peak changes of the (001) crystal plane in the fully charged and discharged cathode samples. [ 20,26,61–72 ] c) XRD spectra of TBAVO in the pristine, 1 st, and 101 th fully discharged state. d) Inductively coupled plasma‐optical emission spectrometry (ICP‐OES) test of V content of HVO, TMAVO, TEAVO, and TBAVO cathodes soaking in electrolyte for 15 days.…”

Section: Resultsmentioning

confidence: 99%

Amphipathic Molecules Endowing Highly Structure Robust and Fast Kinetic Vanadium‐Based Cathode for High‐Performance Zinc‐Ion Batteries

Zhu

Wang²,

Wang

et al. 2022

Small Structures

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The advancement of lithium-ion batteries (LIBs) with high energy/power densities is highly demanded for ever-growing energy demands for portable electronics and electric vehicles. [1,2] However, the toxic and easily flammable organic electrolytes in LIBs pose environmental concerns and may cause serious safety issues. [3,4] Compared to organic electrolytes, aqueous electrolytes are attracting great attention because of their intrinsic high safety and high ionic conductivity. [5,6] Moreover, multivalent ions such as Zn 2þ , Mg 2þ , Ca 2þ are more promising for aqueous batteries due to their more charge carrying than that of monovalent Li þ or Na þ . [7,8] Particularly, zinc-ion batteries (ZIBs) exhibit high theoretical capacity (820 mAh g À1 and 5855 mAh cm À3 ) [9] and a more stable Zn metal anode in the ambient, which makes it a promising energy storage system. [10] Various cathode materials including manganese oxides, [11] vanadium oxides, [12,13] Prussian blue analogs, [14] and organic compounds [15,16] have been developed for high-performance ZIBs. Among them, layered vanadium pentoxide cathodes have higher capacity and adjustable interlayer spacing, which have been extensively investigated. [17] As a kind of layered vanadium pentoxide, V 2 O 5 •nH 2 O (HVO) is widely studied because of its theoretical high capacity (%400 mAh g À1 ), simple synthesis process, etc. However, the practical application of layered HVO is still hindered by structural collapse during cycling and slow Zn 2þ diffusion in the HVO cathode. [18,19] To this end, pre-embedding metal ions in the HVO cathode such as MnVO, [20] Li x V 2 O 5 •nH 2 O [21] to widen the interlayer spacing is considered one viable solution to accelerate the diffusion of zinc ions in the cathode and improve the rate performance of the battery. [20,22] However, the pre-intercalation of metal ions might deintercalation during cycling, resulting in the structure collapses of the

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Section: Resultsmentioning

confidence: 99%

Amphipathic Molecules Endowing Highly Structure Robust and Fast Kinetic Vanadium‐Based Cathode for High‐Performance Zinc‐Ion Batteries

Zhu

Wang²,

Wang

et al. 2022

Small Structures

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“…Therefore, the high reversibility, rate capability and specific capacity were realised in batteries with Ca 2+ additives, which simultaneously exhibit preponderant maximum energy/power densities as high as 366 W h kg −1 @ 0.2A g −1 and 6627 W kg −1 @ 10 A g −1 , respectively, compared with other reported vanadium-, manganese-and Prussian blue analoguebased cathodes in the Ragone plot (Fig. 2e) [27][28][29][30][31][32][33][34][35][36][37][38].…”

Section: Electrochemical Evaluationsmentioning

confidence: 89%

In-situ electrochemical modification of pre-intercalated vanadium bronze cathodes for aqueous zinc-ion batteries

Hong

Luo

et al. 2022

Sci. China Mater.

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Vanadium bronzes have been well-demonstrated as promising cathode materials for aqueous zinc-ion batteries. However, conventional single-ion pre-intercalated V2O5 nearly reached its energy/power ceiling due to the nature of micro/electronic structures and unfavourable phase transition during Zn2+ storage processes. Here, a simple and universal in-situ anodic oxidation method of quasi-layered CaV4O9 in a tailored electrolyte was developed to introduce dual ions (Ca2+ and Zn2+) into bilayer δ-V2O5 frameworks forming crystallographic ultra-thin vanadium bronzes, Ca0.12Zn0.12V2O5·nH2O. The materials deliver transcendental maximum energy and power densities of 366 W h kg−1 (478 mA h g−1 @ 0.2 A g−1) and 6627 W kg−1 (245 mA h g−1 @ 10 A g−1), respectively, and the long cycling stability with a high specific capacity up to 205 mA h g−1 after 3000 cycles at 10 A g−1. The synergistic contributions of dual ions and Ca2+ electrolyte additives on battery performances were systematically investigated by multiple in-/ex-situ characterisations to reveal reversible structural/chemical evolutions and enhanced electrochemical kinetics, highlighting the significance of electrolyte-governed conversion reaction process. Through the computational approach, reinforced “pillar” effects, charge screening effects and regulated electronic structures derived from pre-intercalated dual ions were elucidated for contributing to boosted charge storage properties.

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“…Organic matter has also been used as embedded substances in layered materials. The monomers of the conductive polymers, such as polyaniline (PANI) [ 100,141 ] and poly(3,4‐ethylenedioxythiophene) (PEDOT), can be oxidized and polymerized when they are inserted into the layered oxide, so that the interlayer spacing of the 2D material can be expanded. [ 142 ] For example, a vanadium oxide/polyaniline (PANI‐V) superlattice structure was synthesized by the intercalation polymerization method.…”

Section: Modification Strategiesmentioning

confidence: 99%

Two‐Dimensional Cathode Materials for Aqueous Rechargeable Zinc‐Ion Batteries^†

2022

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Comprehensive Summary Rechargeable aqueous zinc‐ion batteries (ZIBs) featuring low cost, superior performance, and environmental benignity have attracted dramatic attention as a promising alternative energy storage system to lithium‐ion batteries. Nevertheless, the development of ZIBs is still hindered by the limited selection of cathode materials due to the large solvation sheath and charge density of Zn2+. Two‐dimensional (2D) materials have attracted extraordinary attention owing to the unique layered structure bonded by weak van der Waals’ forces, which makes them promising host materials for Zn2+ intercalation/de‐intercalation. In this review, the synthesis and properties of 2D materials for cathodes in ZIBs are discussed. Meanwhile, various reports on 2D materials as ZIBs cathodes are summarized. Three key strategies to elicit improved Zn2+ storage abilities: defect engineering, heterostructure engineering, and interlayer engineering, are highlighted. Finally, this review ends with perspectives relating to the challenges and opportunities of 2D materials‐based ZIBs.

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Principles of interlayer-spacing regulation of layered vanadium phosphates for superior zinc-ion batteries

Abstract: Layered vanadium phosphate (VOPO4•2H2O) is reported as a promising cathode material for rechargeable aqueous Zn2+ batteries (ZIBs) owing to its unique layered framework and high discharge plateau. However, its sluggish...

Cited by 163 publications

References 70 publications

Amphipathic Molecules Endowing Highly Structure Robust and Fast Kinetic Vanadium‐Based Cathode for High‐Performance Zinc‐Ion Batteries

Amphipathic Molecules Endowing Highly Structure Robust and Fast Kinetic Vanadium‐Based Cathode for High‐Performance Zinc‐Ion Batteries

In-situ electrochemical modification of pre-intercalated vanadium bronze cathodes for aqueous zinc-ion batteries

Two‐Dimensional Cathode Materials for Aqueous Rechargeable Zinc‐Ion Batteries^†

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Principles of interlayer-spacing regulation of layered vanadium phosphates for superior zinc-ion batteries

Abstract: Layered vanadium phosphate (VOPO4•2H2O) is reported as a promising cathode material for rechargeable aqueous Zn2+ batteries (ZIBs) owing to its unique layered framework and high discharge plateau. However, its sluggish...

Cited by 163 publications

References 70 publications

Amphipathic Molecules Endowing Highly Structure Robust and Fast Kinetic Vanadium‐Based Cathode for High‐Performance Zinc‐Ion Batteries

Amphipathic Molecules Endowing Highly Structure Robust and Fast Kinetic Vanadium‐Based Cathode for High‐Performance Zinc‐Ion Batteries

In-situ electrochemical modification of pre-intercalated vanadium bronze cathodes for aqueous zinc-ion batteries

Two‐Dimensional Cathode Materials for Aqueous Rechargeable Zinc‐Ion Batteries†

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Product

Resources

About

Two‐Dimensional Cathode Materials for Aqueous Rechargeable Zinc‐Ion Batteries^†