Optimizing the electrolyte salt of aqueous zinc-ion batteries based on a high-performance calcium vanadate hydrate cathode material

Zhou, Weijun; Chen, Minfeng; Wang, Anran; Huang, Aixiang; Chen, Jizhang; Xu, Xinwu; Wong, Ching‐Ping

doi:10.1016/j.jechem.2020.05.005

Cited by 57 publications

(30 citation statements)

References 53 publications

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“…The unique hollow structure and tetragonal crystal features provided fast ion transport paths and many active sites with a first-turn capacity of 440 mAh/g at a current of 0.1 A/g. Second, the introduction of water molecules , or other metal cations , in layered VO 2 not only effectively widens the interfacial spacing, but also greatly weakens the electrostatic repulsion through the charge-shielding effect, which promotes the kinetics of the Zn 2+ reaction. Jia et al .…”

Section: Introductionmentioning

confidence: 99%

“…Liu et al 27 active sites with a first-turn capacity of 440 mAh/g at a current of 0.1 A/g. Second, the introduction of water molecules 28,29 or other metal cations 30,31 in layered VO 2 not only effectively widens the interfacial spacing, but also greatly weakens the electrostatic repulsion through the charge-shielding effect, which promotes the kinetics of the Zn 2+ reaction. Jia et al 32 prepared VO 2 •0.2H 2 O nanocube composites immobilized on graphene sheets to improve cycling stability and multiplicative performance at high currents.…”

Section: Introductionmentioning

confidence: 99%

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Oxygen Defect Hydrated Vanadium Dioxide/Graphene as a Superior Cathode for Aqueous Zn Batteries

Huang

Qin

et al. 2021

ACS Appl. Mater. Interfaces

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Zinc ion batteries have become a new type of energy storage device because of the low cost and high safety. Among the various cathode materials, vanadium–oxygen compounds stand out due to their high theoretical capacity and variable chemistry valence state. Here, we construct a 3D spongy hydrated vanadium dioxide composite (Od-HVO/rG) with abundant oxygen vacancy defects and graphene modifications. Thanks to the stable structure and abundant active sites, Od-HVO/rG exhibits superior electrochemical properties. In aqueous electrolyte, the Od-HVO/rG cathode provides high initial charging capacity (428.6 mAh/g at 0.1 A/g), impressive rate performance (186 mAh/g even at 20 A/g), and cycling stability, which can still maintain 197.5 mAh/g after 2000 cycles at 10 A/g. Also, the superior specific energy of 245.3 Wh/kg and specific power of 14142.7 W/kg are achieved. In addition, MXene/Od-HVO/rG cathode materials are prepared and PAM/ZnSO4 hydrogel electrolytes are applied to assemble flexible soft pack quasi-solid-state zinc ion batteries, which also exhibit excellent flexibility and cycling stability (206.6 mAh/g after 2000 cycles). This work lays the foundation for advances in rechargeable aqueous zinc ion batteries, while revealing the potential for practical applications of flexible energy storage devices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Oxygen Defect Hydrated Vanadium Dioxide/Graphene as a Superior Cathode for Aqueous Zn Batteries

Huang

Qin

et al. 2021

ACS Appl. Mater. Interfaces

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“…According to a series of characterization techniques, the battery with Zn(CF 3 SO 3 ) 2 electrolyte exhibited faster electrochemical kinetics, a more stable electrode/electrolyte interface, and a more effective role in inhibiting the formation of dendrites and by‐products than the batteries with ZnSO 4 or Zn(ClO 4 ) 2 electrolytes. Hence, the proposed work has high‐performance vanadium‐based cathode material for AZIBs but also provides suitable guidance in choosing appropriate electrolyte salts 57 …”

Section: Cathode Materials For Zn‐ion Batterymentioning

confidence: 99%

Recent development of aqueous zinc‐ion battery cathodes and future challenges: Review

Fegade

Jethave

Khan

et al. 2022

Intl J of Energy Research

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Due to the increasing energy demand and to help integrate renewable energy into the energy mix, large-scale energy storage has become essential. Among the different large-scale secondary battery technologies, zinc-ion batteries (ZIBs) have attracted huge attention due to their lower cost, better safety, and environmental positivity. The aqueous electrolyte in ZIBs allows the batteries to be constructed under normal atmospheric conditions and substantially reduces the assembling complexity. However, due to its low working voltage, cathode materials are often restricted, and rectifying voltage is a crucial function. Increasing the cathode voltage necessitates an increase in the electrolyte's thermodynamic stability. Additionally, the process of zinc-ion storage should be studied in greater depth and new variants of characterization can be used to precisely

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“…Coupled with the urgent need for resources and environmental protection, researchers are urged to vigorously explore new battery systems with high safety, high-cost performance, green environmental protection, and high specific capacity [15,16]. Rechargeable aqueous Zn-ion batteries (RAZIBs) have become one of the best choices for largescale energy storage systems because of their high safety, high capacity, low cost, and low redox potential [17][18][19][20][21][22][23]. The Zn-MnO 2 battery using an alkaline electrolyte, which can be charged and discharged repeatedly, was successfully developed in the 1960s.…”

Section: Introductionmentioning

confidence: 99%

Interfacial Engineering Strategy for High-Performance Zn Metal Anodes

et al. 2021

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Due to their high safety and low cost, rechargeable aqueous Zn-ion batteries (RAZIBs) have been receiving increased attention and are expected to be the next generation of energy storage systems. However, metal Zn anodes exhibit a limited-service life and inferior reversibility owing to the issues of Zn dendrites and side reactions, which severely hinder the further development of RAZIBs. Researchers have attempted to design high-performance Zn anodes by interfacial engineering, including surface modification and the addition of electrolyte additives, to stabilize Zn anodes. The purpose is to achieve uniform Zn nucleation and flat Zn deposition by regulating the deposition behavior of Zn ions, which effectively improves the cycling stability of the Zn anode. This review comprehensively summarizes the reaction mechanisms of interfacial modification for inhibiting the growth of Zn dendrites and the occurrence of side reactions. In addition, the research progress of interfacial engineering strategies for RAZIBs is summarized and classified. Finally, prospects and suggestions are provided for the design of highly reversible Zn anodes.

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Optimizing the electrolyte salt of aqueous zinc-ion batteries based on a high-performance calcium vanadate hydrate cathode material

Cited by 57 publications

References 53 publications

Oxygen Defect Hydrated Vanadium Dioxide/Graphene as a Superior Cathode for Aqueous Zn Batteries

Oxygen Defect Hydrated Vanadium Dioxide/Graphene as a Superior Cathode for Aqueous Zn Batteries

Recent development of aqueous zinc‐ion battery cathodes and future challenges: Review

Interfacial Engineering Strategy for High-Performance Zn Metal Anodes

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