Assisting Zn storage in layered vanadyl phosphate cathode by interactions with oligoaniline pillars for rechargeable aqueous zinc batteries

Shi, Hua‐Yu; Jiang, Quanwei; Wu, Wanlong; Lin, Zhitao; Jia, Zhongqiu; Sun, Xiaoqi

doi:10.1016/j.cej.2022.140323

Cited by 15 publications

(3 citation statements)

References 41 publications

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“…[15][16] However, its discharge capacity and cycle life are significantly lower than those of vanadium oxides due to slow reaction kinetics and severe structural degradation caused by the strong electrostatic interactions between Zn 2+ and the host as well as the dissolution of VOPO 4 •2H 2 O in mild aqueous electrolyte. [17] Interlayer engineering has proven to be an effective method to stabilize the structure and accelerate electrochemical kinetics of VOPO 4 •2H 2 O. [18][19] The guest species are studied ranging from water to organic molecules to ions.…”

Section: Introductionmentioning

confidence: 99%

Sodium‐Ion Substituted Water Molecule in Layered Vanadyl Phosphate Enhancing Electrochemical Kinetics and Stability of Zinc Ion Storage

Zong

Liu

et al. 2023

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Vanadyl phosphate (VOPO4·2H2O) has been regarded as one of the most promising cathode materials for aqueous Zn‐ion batteries due to its distinct layered structure. However, VOPO4·2H2O has not yet demonstrated the exceptional Zn ion storage performance owing to the structural deterioration during repeated charging/discharging process and poor intrinsic conductivity. In this work, 2D sodium vanadyl phosphate (NaVOPO4·0.83H2O, denoted as NaVOP) is designed as a cathode material for Zn‐ion batteries, in which sodium ions are preinserted into the interlayer, replacing part of water. Benefiting from the in situ surface oxidization, improved electronic conductivity, and increased hydrophobicity, the NaVOP electrode exhibits a high discharge capacity of 187 mAh g−1 at 0.1 A g−1 after activation, excellent rate capability and enhanced cycling performance with 85% capacity retention after 1500 cycles at 1 A g−1. The energy storage mechanism of the NaVOP nanoflakes based on the rapid Zn2+ and H+ intercalation pseudocapacitance are investigated via multiple ex situ characterizations.

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Section: Introductionmentioning

confidence: 99%

Sodium‐Ion Substituted Water Molecule in Layered Vanadyl Phosphate Enhancing Electrochemical Kinetics and Stability of Zinc Ion Storage

Zong

Liu

et al. 2023

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“…Besides H 2 O molecules, organic molecules (such as phenylamine, polypyrrole, polyaniline, poly(3,4-ethylenedioxythiophene) (PEDOT), and oligoaniline) have also been successfully inserted into layered cathode materials. 13,85,[105][106][107] Therefore, the intercalation of molecules into cathode materials can play a crucial role in improving electrochemical activity and reversibility. In addition to the intercalation of ions and molecules mentioned above, some researchers attempted to introduce both ions and molecules into layered host materials to adjust and stabilize the crystal structures.…”

Section: Intercalation Engineeringmentioning

confidence: 99%

Advanced polyanionic cathode materials for aqueous zinc-ion batteries: from crystal structures, reaction mechanisms, design strategies to future perspectives

Jin,

Shen,

Zhang

et al. 2024

J. Mater. Chem. A

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“…This is why Zn 2 + storage and electrochemical energy storage characteristics are greatly influenced by bare crystals with high surface energy, adjustable vacancies, and doping. [31][32][33][34][35] Because of its remarkable chemical stability and electrochemical characteristics, MnOx has become a promising electrode material for aqueous zinc ion batteries among a range of cathode materials for zinc ion batteries. MnOx has been thoroughly studied in a number of fields, including as sensors, negative temperature coefficient thermistors, magnets, supercapacitors, and catalysis, due to their fascinating properties.…”

Section: Introductionmentioning

confidence: 99%

A Cu/MnOx Composite with Copper‐Doping‐Induced Oxygen Vacancies as a Cathode for Aqueous Zinc‐Ion Batteries

Han,

Jia,

Wang

et al. 2024

Chemistry A European J

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Aqueous zinc‐ion batteries are anticipated to be the next generation of important energy storage devices to replace lithium‐ion batteries due to the ongoing use of lithium resources and the safety hazards associated with organic electrolytes in lithium‐ion batteries. Manganese‐based compounds, including MnOx materials, have prominent places among the many zinc‐ion battery cathode materials. Additionally, Cu doping can cause the creation of an oxygen vacancy, which increases the material's internal electric field and enhances cycle stability. MnOx also has great cyclic stability and promotes ion transport. At a current density of 0.2 A g−1, the Cu/MnOx nanocomposite obtained a high specific capacitance of 304.4 mAh g−1. In addition, Cu/MnOx nanocomposites showed A high specific capacity of 198.9 mAh g−1 after 1000 cycles at a current density of 0.5 A g−1. Therefore, Cu/MnOx nanocomposites are expected to be a strong contender for the next generation of zinc‐ion battery cathode materials in high energy density storage systems.

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Assisting Zn storage in layered vanadyl phosphate cathode by interactions with oligoaniline pillars for rechargeable aqueous zinc batteries

Cited by 15 publications

References 41 publications

Sodium‐Ion Substituted Water Molecule in Layered Vanadyl Phosphate Enhancing Electrochemical Kinetics and Stability of Zinc Ion Storage

Sodium‐Ion Substituted Water Molecule in Layered Vanadyl Phosphate Enhancing Electrochemical Kinetics and Stability of Zinc Ion Storage

Advanced polyanionic cathode materials for aqueous zinc-ion batteries: from crystal structures, reaction mechanisms, design strategies to future perspectives

A Cu/MnOx Composite with Copper‐Doping‐Induced Oxygen Vacancies as a Cathode for Aqueous Zinc‐Ion Batteries

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