A novel organic-inorganic hybrid V2O5@polyaniline as high-performance cathode for aqueous zinc-ion batteries

Du, Yehong; Wang, Xinyu; Man, Jianzong; Sun, Juncai

doi:10.1016/j.matlet.2020.127813

Cited by 43 publications

(23 citation statements)

References 11 publications

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“…Even at 5 A g −1 over 2000 cycles, the batteries based on the V 2 O 5 /CNTs film maintained a capacity of 251 mAh g −1 with a high-capacity retention of 94% ( Figure 3 d), which is much higher than those of pristine V 2 O 5 (168 mAh g −1 and 81%). The long cycle capability of the V 2 O 5 /CNTs film was comparable or higher than most of the previously reported V-based materials without CNTs ( Table 1 ) [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. Furthermore, compared with other works using CNTs in an V 2 O 5 electrode, the batteries based on the V 2 O 5 /CNTs film still displayed a comparable capacity and cycle performance ( Table 2 ) [ 32 , 33 , 34 ].…”

Section: Resultssupporting

confidence: 64%

Vanadium Pentoxide Nanofibers/Carbon Nanotubes Hybrid Film for High-Performance Aqueous Zinc-Ion Batteries

Liu

et al. 2021

Nanomaterials

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Aqueous zinc-ion batteries (ZIBs) with the characteristics of low production costs and good safety have been regarded as ideal candidates for large-scale energy storage applications. However, the nonconductive and non-redox active polymer used as the binder in the traditional preparation of electrodes hinders the exposure of active sites and limits the diffusion of ions, compromising the energy density of the electrode in ZIBs. Herein, we fabricated vanadium pentoxide nanofibers/carbon nanotubes (V2O5/CNTs) hybrid films as binder-free cathodes for ZIBs. High ionic conductivity and electronic conductivity were enabled in the V2O5/CNTs film due to the porous structure of the film and the introduction of carbon nanotubes with high electronic conductivity. As a result, the batteries based on the V2O5/CNTs film exhibited a higher capacity of 390 mAh g−1 at 1 A g−1, as compared to batteries based on V2O5 (263 mAh g−1). Even at 5 A g−1, the battery based on the V2O5/CNTs film maintained a capacity of 250 mAh g−1 after 2000 cycles with a capacity retention of 94%. In addition, the V2O5/CNTs film electrode also showed a high energy/power density (e.g., 67 kW kg−1/267 Wh kg−1). The capacitance response and rapid diffusion coefficient of Zn2+ (~10−8 cm−2 s−1) can explain the excellent rate capability of V2O5/CNTs. The vanadium pentoxide nanofibers/carbon nanotubes hybrid film as binder-free cathodes showed a high capability and a stable cyclability, demonstrating that it is highly promising for large-scale energy storage applications.

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Section: Resultssupporting

confidence: 64%

Vanadium Pentoxide Nanofibers/Carbon Nanotubes Hybrid Film for High-Performance Aqueous Zinc-Ion Batteries

Liu

et al. 2021

Nanomaterials

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Section: Challenges and Optimizationmentioning

confidence: 99%

The Current Developments and Perspectives of V₂O₅ as Cathode for Rechargeable Aqueous Zinc‐Ion Batteries

et al. 2020

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In recent years, zinc‐ion batteries (ZIBs) with near neutral (pH ≈ 4–6) Zn2+‐containing aqueous electrolyte have received extensive research due to their advantages of high safety, low production cost, suitable anode zinc, and environmental friendliness, etc. At present, one of the key challenges of aqueous ZIBs is the development of cathode materials with stable structure, rapid kinetics, and high capacity, etc. Compared with other cathode materials, V2O5 has an important potential application because of its high theoretical specific capacity (589 mA h g−1) based on two electron transfers, relatively low production cost, and suitable layered structure that facilitates zinc ion insertion/extraction. Herein, the following sections are proposed: 1) An understanding of the structure and energy storage mechanism of V2O5; 2) The recent development on the aqueous Zn/V2O5 battery from properties of V2O5 cathode and composition optimization of battery structure; 3) The application of V2O5 cathode in flexible ZIBs; and 4) The outlook and development trends in the future.

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“…[85,86] Excepting the inorganic materials, the cathodes based on hybrid and organic materials also have been developed to a certain extent in recent years. [87] Among them, hybrid materials are composed on inorganic and organic components, and mainly focusing on the investigation of metal organic frameworks (MOFs) field at present stage. [75,88,89] Benefiting from the structural advantage of open framework with large interstitial sites, MOFs have been widely regarded as the promising Zn 2+ storage hosts.…”

Section: The Category Of Cathode Materialsmentioning

confidence: 99%

Understanding the Design Principles of Advanced Aqueous Zinc‐Ion Battery Cathodes: From Transport Kinetics to Structural Engineering, and Future Perspectives

Yong

Wang

et al. 2020

Advanced Energy Materials

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have also greatly aroused the positive exploration of alternative LIB technologies in recent years. [44] In contrast to the flammable organic electrolyte in LIBs, the aqueous one exhibits lower cost, higher safety, and especially the superior ionic conductivity, which is generally two orders of magnitude higher than that of the organic system. [9,10] All those unparalleled advantages would make the aqueous battery technologies to be the promising candidates in the future. [11] Rechargeable aqueous zinc-ion batteries (AZIBs), which is mainly composed of zinc metal anode, zinc salt-based aqueous electrolyte, and Zn 2+ host cathode, hold the great promise for energy storage applications in very recent years. [12,13] Compared with nonaqueous alkali-ion batteries, the use of cheap and high ambient stable zinc metal anode and inexpensive aqueous electrolyte with superior ionic conductivity (Figure 1a) would make such type of battery to be one of the most promising commercial candidates in the future market. [14-17] To date, extensive studies have been reported for AZIBs, and relating publications have dramatically increased especially in these two years, as shown in Figure 1b. However, the insufficient energy density seems to become the bottleneck that hinder their practical applications at current status. [4,5,18] Such issue could be ascribed to the narrow operating voltage of aqueous electrolyte, insufficient electrochemical performance of cathode materials, and Zn anode. [13,19,20] Besides, the influence of other components such as separator and collector also should be considered to some extent. [20,21] Among them, the studies of widening operating voltage of electrolyte and the optimization of other components only received less attention, which still remain at the early stage. [22,23] On the contrary, more attentions were paid to the electrochemical performance tuning of electrode materials. [24-26] Besides, considering the fixed operating voltage of Zn metal anode, the modification of cathode materials seems to provide more possibilities to effectively improve the energy density of AZIBs, owing to their rich material systems. [20,26,27] Under these considerations, the rational design of advanced cathodes is expected to be a preferential task to develop. Up to now, many types of materials have been exploited as cathode candidates and applied for AZIBs, however, those Rechargeable aqueous zinc-ion batteries (AZIBs) have attracted extensive attention and are considered to be promising energy storage devices, owing to their low cost, eco-friendliness, and high security. However, insufficient energy density has become the bottleneck for practical applications, which is greatly influenced by their cathodes and makes the exploration of high-performance cathodes still a great challenge. This review underscores the recent advances in the rational design of advanced cathodes for AZIBs. The review starts with a brief summary and evaluation of cathode material systems, as well as the introduction of proposed storage mechani...

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A novel organic-inorganic hybrid V2O5@polyaniline as high-performance cathode for aqueous zinc-ion batteries

Cited by 43 publications

References 11 publications

Vanadium Pentoxide Nanofibers/Carbon Nanotubes Hybrid Film for High-Performance Aqueous Zinc-Ion Batteries

Vanadium Pentoxide Nanofibers/Carbon Nanotubes Hybrid Film for High-Performance Aqueous Zinc-Ion Batteries

The Current Developments and Perspectives of V₂O₅ as Cathode for Rechargeable Aqueous Zinc‐Ion Batteries

Understanding the Design Principles of Advanced Aqueous Zinc‐Ion Battery Cathodes: From Transport Kinetics to Structural Engineering, and Future Perspectives

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A novel organic-inorganic hybrid V2O5@polyaniline as high-performance cathode for aqueous zinc-ion batteries

Cited by 43 publications

References 11 publications

Vanadium Pentoxide Nanofibers/Carbon Nanotubes Hybrid Film for High-Performance Aqueous Zinc-Ion Batteries

Vanadium Pentoxide Nanofibers/Carbon Nanotubes Hybrid Film for High-Performance Aqueous Zinc-Ion Batteries

The Current Developments and Perspectives of V2O5 as Cathode for Rechargeable Aqueous Zinc‐Ion Batteries

Understanding the Design Principles of Advanced Aqueous Zinc‐Ion Battery Cathodes: From Transport Kinetics to Structural Engineering, and Future Perspectives

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The Current Developments and Perspectives of V₂O₅ as Cathode for Rechargeable Aqueous Zinc‐Ion Batteries