Fabrication of (NH4)2V3O8 nanoparticles encapsulated in amorphous carbon for high capacity electrodes in aqueous zinc ion batteries

Jiang, Hanmei; Zhang, Yifu; Xu, Lei; Gao, Zhanming; Zheng, Jiqi; Wang, Qiushi; Meng, Changgong; Wang, John

doi:10.1016/j.cej.2019.122844

Cited by 171 publications

(70 citation statements)

References 74 publications

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“…Ammonium vanadate (NH 4 ) 2 V 3 O 8 encapsulated in amorphous carbon prepared by hydrothermal treatment of a mixture of NH 4 VO 3 and glucose was demonstrated. [ 160 ] (NH 4 ) 2 V 3 O 8 crystalline structure is comprised of layers containing VO 4 tetrahedra and VO 5 bipyramids with NH 4 + incorporated between the layers. (NH 4 ) 2 V 3 O 8 /C exhibited a specific capacity of 356 mAh g −1 at 0.1 A g −1 and retained specific capacities of 201 mAh g −1 at 0.2 A g −1 after 100 cycles and 135 mAh g −1 at 1 A g −1 after 1000 cycles.…”

Section: Electrolyte Modificationsmentioning

confidence: 99%

Recent Progress in Layered Manganese and Vanadium Oxide Cathodes for Zn‐Ion Batteries

Bensalah

Luna

2021

Energy Tech

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Aqueous zinc‐ion batteries (AZIBs) are promising candidates for grid‐scale energy‐storage systems, which are essential for maintaining and distributing energy generated from various sources. In contrast to current commercial lithium‐ion batteries (LIBs), AZIBs offer advantages such as, but not limited to, high safety, low cost, and fast kinetics. Zn intercalation material serves as the key element for the suitability of Zn‐ion batteries (ZIBs) for grid and stationary applications. Different materials are tested as cathode materials for ZIBs, including manganese oxides and vanadium oxides. MnO2‐ and V2O5‐based cathodes, in particular, seem compatible with ZIBs, with the potential to perform better than existing batteries in the market. Due to the fast and facile (de)intercalation‐type storage mechanism of Zn2+ ions, layered electrode materials generally have a more stable structure during battery charge and discharge cycles. Materials with large interlayer spacing are expected to exhibit good electrochemical performance, thereby favoring hydrated and cation‐intercalated materials in the development of AZIBs cathodes. Herein, an overview is provided on the synthesis, morphology, and electrochemical performance of various MnO2‐ and V2O5‐based cathode materials in AZIB, as well as the challenges that must be overcome to reach the commercialization of AZIBs.

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Section: Electrolyte Modificationsmentioning

confidence: 99%

Recent Progress in Layered Manganese and Vanadium Oxide Cathodes for Zn‐Ion Batteries

Bensalah

Luna

2021

Energy Tech

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“…So far, several types of materials including manganese oxides, Prussian blue analogues and vanadium-based compounds (VBCs) have been exploited. Among them, VBCs are promising as the fantastic cathodes because they have both remarkable theoretical capacity and good rate capability [17][18][19][20]. Notably, pre-potassiated V x O y , where cations serve as "pillars" between [V-O] polyhedron layers, can effectively expand its interlayer space and further optimize Zn 2+ diffusion kinetics [21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Electrolyte Concentration Regulation Boosting Zinc Storage Stability of High-Capacity K0.486V2O5 Cathode for Bendable Quasi-Solid-State Zinc Ion Batteries

Liu

et al. 2021

Nano-Micro Lett.

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Vanadium-based cathodes have attracted great interest in aqueous zinc ion batteries (AZIBs) due to their large capacities, good rate performance and facile synthesis in large scale. However, their practical application is greatly hampered by vanadium dissolution issue in conventional dilute electrolytes. Herein, taking a new potassium vanadate K0.486V2O5 (KVO) cathode with large interlayer spacing (~ 0.95 nm) and high capacity as an example, we propose that the cycle life of vanadates can be greatly upgraded in AZIBs by regulating the concentration of ZnCl2 electrolyte, but with no need to approach “water-in-salt” threshold. With the optimized moderate concentration of 15 m ZnCl2 electrolyte, the KVO exhibits the best cycling stability with ~ 95.02% capacity retention after 1400 cycles. We further design a novel sodium carboxymethyl cellulose (CMC)-moderate concentration ZnCl2 gel electrolyte with high ionic conductivity of 10.08 mS cm−1 for the first time and assemble a quasi-solid-state AZIB. This device is bendable with remarkable energy density (268.2 Wh kg−1), excellent stability (97.35% after 2800 cycles), low self-discharge rate, and good environmental (temperature, pressure) suitability, and is capable of powering small electronics. The device also exhibits good electrochemical performance with high KVO mass loading (5 and 10 mg cm−2). Our work sheds light on the feasibility of using moderately concentrated electrolyte to address the stability issue of aqueous soluble electrode materials.

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“…[4] Metallic Zinc, as the anode of the RAZIBs, has large theoretical specific capacity of 820 mAh g À 1 and theoretical volume capacity of 5855 mAh cm À 3 . [6][7][8] Moreover, metal Zn with a lower redox potential (À 0.76 V) is stable in aqueous solution and air atmosphere (1.2 V). [9,13] Therefore, RAZIBs are considered to be one of the most promising large-scale energy storage devices.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the research and exploration of cathode materials for RAZIBs have attracted the attention of researchers. [10,11] Recently, various cathode materials for RAZIBs, including manganese oxides, [12,[14][15][16] vanadium oxides, [7,17,11,8] Prussian blue and its analogues, cobalt-based materials, [19,20] molybdenum-based materials [21] and some organic materials [22] have been widely studied. Among them, vanadium oxides has attracted wide attention due to its higher theoretical capacity (589 mAh g À 1 ), multivalent states, low cost and abundant reserves.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, improving the electronic conductivity of vanadium oxide by compositing conductive material is another effective strategy to improve the zinc storage performance of vanadium oxide . [7,37,38] Wei et al have synthesized V 3 O 7 • H 2 O/rGO composite, which shows excellent capacity retention (79 % after 1000 cycles) and exhibits a high power density (8400 W kg À 1 at 77 W h kg À 1 ). [39] Liu et al proposed graphene oxide wrapped CuV 2 O 6 nanobelts with high specific capacity of 427 mAh g À 1 at 0.1 A g À 1 and little capacity loss about 0.7 % after 3000 cycles at 5 A g À 1 .…”

Section: Introductionmentioning

confidence: 99%

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Sandwich Structure of 3D Porous Carbon and Water‐Pillared V₂O₅ Nanosheets for Superior Zinc‐Ion Storage Properties

Shao

Zeng

et al. 2021

ChemElectroChem

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Vanadium oxides are promising cathode materials for rechargeable aqueous zinc-ion batteries (RAZIBs). However, the selfagglomeration and poor ion/electron conductivity of vanadium oxides in the charge/discharge process usually lead to low capacity and capacity attenuation, which limits their commercial application. Herein, we report a facile and mass-production method for fabricating 3D porous carbon/water-pillared V 2 O 5 nanosheet composites with sandwich structure (PC/V 2 O 5 • nH 2 O), which can further reduce the preparation cost of vanadiumoxide-based cathodes. Moreover, the excellent structural characteristics of PC/V 2 O 5 • nH 2 O not only effectively inhibits the aggregation and stacking of V 2 O 5 • nH 2 O but also increases the contact area between the active substance and the electrolyte, which is conducive to the transport of zinc ions and improves the electrochemical performance of RAZIBs. The PC/V 2 O 5 • nH 2 O cathode displays an excellent rate performance (325.3 mAh g À 1 at high current density 20 A g À 1 ), a high specific discharge capacity of 415.4 mAh g À 1 at 0.5 A g À 1 , an outstanding cyclic stability, and capacity retention (after 1000 cycles the capacity retention rate about 97.1 %). Ex situ XRD patterns reveal that the charge/discharge process of the PC/V 2 O 5 • nH 2 O electrode undergoes a reversible intercalation and conversion process. The method used in this work provides an idea for large-scale synthesis of vanadium-based cathode materials for multivalent batteries.

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Fabrication of (NH4)2V3O8 nanoparticles encapsulated in amorphous carbon for high capacity electrodes in aqueous zinc ion batteries

Cited by 171 publications

References 74 publications

Recent Progress in Layered Manganese and Vanadium Oxide Cathodes for Zn‐Ion Batteries

Recent Progress in Layered Manganese and Vanadium Oxide Cathodes for Zn‐Ion Batteries

Electrolyte Concentration Regulation Boosting Zinc Storage Stability of High-Capacity K0.486V2O5 Cathode for Bendable Quasi-Solid-State Zinc Ion Batteries

Sandwich Structure of 3D Porous Carbon and Water‐Pillared V₂O₅ Nanosheets for Superior Zinc‐Ion Storage Properties

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Fabrication of (NH4)2V3O8 nanoparticles encapsulated in amorphous carbon for high capacity electrodes in aqueous zinc ion batteries

Cited by 171 publications

References 74 publications

Recent Progress in Layered Manganese and Vanadium Oxide Cathodes for Zn‐Ion Batteries

Recent Progress in Layered Manganese and Vanadium Oxide Cathodes for Zn‐Ion Batteries

Electrolyte Concentration Regulation Boosting Zinc Storage Stability of High-Capacity K0.486V2O5 Cathode for Bendable Quasi-Solid-State Zinc Ion Batteries

Sandwich Structure of 3D Porous Carbon and Water‐Pillared V2O5 Nanosheets for Superior Zinc‐Ion Storage Properties

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Product

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Sandwich Structure of 3D Porous Carbon and Water‐Pillared V₂O₅ Nanosheets for Superior Zinc‐Ion Storage Properties