Monoclinic VO<sub>2</sub>(D) hollow nanospheres with super-long cycle life for aqueous zinc ion batteries

Chen, Linlin; Yang, Zhanhong; Huang, Yaoguo

doi:10.1039/c9nr03129d

Cited by 135 publications

(60 citation statements)

References 37 publications

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“…Very recently, Yang et al reported the extended cycling of Zn||monoclinic VO 2 (D) (26) up to 30 000 cycles, but adversely this system was able to retain only 30% of its initial capacity. [81] Remarkably, our Zn|4 m Zn(TFSI) 2 |P(4VC 86stat-SS 14 ) was subjected to much prolonged cycling test over an extended period of 91 days that comprised 48 000 cycles at 30 C, which displayed an outstanding 83% capacity retention. To the best of our knowledge, the 48 000 GCD cycles are currently the longest reported for AZMBs.…”

Section: Zn||p(4vc 86 -Stat-ss 14 ) Versus State-of-the-art Azmbsmentioning

confidence: 99%

An Ultrahigh Performance Zinc‐Organic Battery using Poly(catechol) Cathode in Zn(TFSI)₂‐Based Concentrated Aqueous Electrolytes

Patil

Cruz

Ciurduc

et al. 2021

Advanced Energy Materials

127

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are limited by high cost, safety issues, poor recycling infrastructure, and growing concerns of resource scarcity. [4,5] Therefore, in the quest of finding alternative sustainable energy storage solutions, systems based on multivalent chemistries, such as Ca 2+ , Mg 2+ , Zn 2+ , Al 3+ , etc., should provide ample opportunities owing to their greater abundance, lower costs, superior safety features, in addition to their significantly higher volumetric energy densities. [6][7][8][9][10][11] In particular, zinc metal batteries (ZMBs) are highly intriguing because Zn anode shows high specific capacity (820 mAh g −1 ), high volumetric capacity of 5851 mAh cm −3 , nontoxicity, nonflammability, cost-effectiveness, large production, and easy processing. [12][13][14][15][16][17] Moreover, differently from other multivalent chemistries (Ca 2+ , Mg 2+ , Al 3+ ), the relatively higher redox potential of Zn (−0.76 V vs standard hydrogen electrode) makes it the only feasible choice as reversible anode for aqueous electrolytes. Certainly, taking advantage of the potentially large voltage window (>2 V) and high ionic conductivity of aqueous electrolytes, aqueous zinc metal batteries (AZMBs) might present an excellent high energy/power trade-off which is triggering the growing interest of this technology in the last years. [18,19] To date, AZMBs are mainly based on inorganic intercalation/ conversion cathode materials such as metal oxides (manganese, vanadium, etc.), transition metal dichalcogenides, polyanionic olivine-based phosphates, and Prussian blue analogs. [12,13,18,19] However, these cathode materials resulted in poor cell performances, exhibiting slow kinetics, low round-trip efficiency, and unstable cycling. This is due to the large cation size which hinders interfacial charge transfer and provokes strong electrostatic interactions between the highly charged Zn 2+ and the host inorganic framework causing destabilization of the crystal lattice and significant volume changes upon intercalation/deintercalation. [6][7][8][9][10][11] It is also important to highlight that most of these multivalent cathodes still involve toxic and/or environmentally unfriendly elements (except widely used MnO 2 ), which make further steps critical toward accomplishment of large-scale, sustainable energy storage systems. Therefore, the main challenge Aqueous zinc-metal batteries (AZMBs) are predicted to be an attractive solutions for viable, high-performance, and large-scale energy storage applications, but their advancement is greatly hindered by the lack of adequate aqueous electrolytes and sustainable cathodes. Herein, an ultra-robust Zn-polymer AZMB is demonstrated using poly(catechol) redox copolymer (P(4VC 86 -stat-SS 14 )) as the cathode and concentrated Zn(TFSI) 2 aqueous solution as stable electrolyte. The Zn(TFSI) 2 electrolyte shows enhanced iontransport properties and confers improved (electro)chemical compatibility with superior cell performance compared to traditional ZnSO 4 . The assembled Zn||P(4VC 86 -stat-SS 14 ) (2.5 mg cm ...

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Section: Zn||p(4vc 86 -Stat-ss 14 ) Versus State-of-the-art Azmbsmentioning

confidence: 99%

An Ultrahigh Performance Zinc‐Organic Battery using Poly(catechol) Cathode in Zn(TFSI)₂‐Based Concentrated Aqueous Electrolytes

Patil

Cruz

Ciurduc

et al. 2021

Advanced Energy Materials

127

View full text Add to dashboard Cite

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“…All the CV curves display similar shapes and have a larger area as the scan rate increases, revealing the obvious pseudocapacitive behavior in the electrochemical process. [36,37] In general, the degree of pseudocapacitive contribution can be qualitatively estimated according to the following Equation ( 1): [38][39][40][41][42]…”

Section: Resultsmentioning

confidence: 99%

CoP Nanoparticles Intertwined with Graphene Nanosheets as a Superior Anode for Half/Full Sodium‐Ion Batteries

et al. 2021

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Conversion-type CoP is a promising anode candidate for sodium-ion batteries (SIBs) thanks to their abundant resources and high theoretical capacity. However, the low reversible capacity and inferior cycle life are two major obstacles that limit its practical application in SIBs. Herein, cobalt-based metalorganic framework derived CoP nanoparticles coupled with reduced graphene oxide (RGO) composite (CoP/RGO) has been successfully prepared. The optimized CoP/RGO presents a high reversible capacity (258.6 mAh g À 1 at 0.1 A g À 1 ), superior rate capability (173 mAh g À 1 at 2 A g À 1 ) and extraordinary durability (155 mAh g À 1 at 0.5 A g À 1 after 500 cycles with the per cycle capacity decay rate of only 0.065 %). In addition, electrochemical analyses reveal fast reaction kinetics and high surface capacitive contribution in CoP/RGO composite, which can be responsible for the excellent performance. Furthermore, the CoP/RGO//Na 3 V 2 (PO 4 ) 3 sodium-ion full cells are assembled successfully and display an initial charge capacity of 231.1 mAh g À 1 at 0.1 A g À 1 . Considering the low cost and great electrochemical performances, this work may provide some new opportunities for the synthesis of activity anode materials for SIBs.

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“…VO 2 has stable rutile VO 2 (R), monoclinic VO 2 (M), metastable VO 2 (B), tetragonal VO 2 (A), VO 2 (C), and other crystalline phases. [91] The insertion/extraction of electrode ions with different crystal structures provides a variety of approaches, which thus have a significant effect on the electrochemical properties. Recently, Wei et al studied the zinc storage properties of metastable VO 2 as a ZIB positive electrode material.…”

Section: Vomentioning

confidence: 99%

“…Chen et al reported monoclinic VO 2 (D) hollow nanospheres as aqueous ZIB positive electrodes. [91] Monocline VO 2 (D) hollow nanospheres were prepared as positive electrodes to establish complete aqueous ZIBs with a Zn negative electrode and ZnSO 4 electrolyte (Figure 2a). As exhibited in Figure 2j,k, the VO 2 (D) samples are rough hollow nanospheres with a large surface area, which supply a mass of active sites.…”

Section: Vomentioning

confidence: 99%

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Vanadium‐Based Materials as Positive Electrode for Aqueous Zinc‐Ion Batteries

Fan

Xue

et al. 2020

Advanced Sustainable Systems

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development, but these energy sources have geographical limitations and instability, so it is difficult to achieve a wide range of applications. As an important part of sustainable energy development, electrochemical energy storage has become an area of active research in recent decades. [7-10] In the current energy market, lithium ion batteries (LIBs) are dominant in the automobile, medical equipment, and portable wearable device industries, among others, which can be attributed to their outstanding energy density and environmental protection performance. [11,12] However, the use of organic solvent-based electrolytes may raise safety issues and increase costs. [13-19] Therefore, the creation of an efficient battery system is very important. Compared with nonaqueous batteries, aqueous rechargeable batteries have the characteristics of low cost, nontoxicity, and incombustibility, and are more economically competitive than lithium technology in terms of largescale deployment. [20-22] Therefore, the most important task at present is to develop an ideal battery device with low cost, acceptable safety, long cycle performance, and environmental friendliness as a substitute for LIBs. [23-25] For the past few years, ion batteries with polyvalent metals as the negative electrodes have attracted much attention. Polyvalent cations (Zn 2+ , Mg 2+ , Al 3+) transfer twice or even three times as many electrons into the main material as monovalent cations (Li + , Na +), and each polyvalent positive ion can be inserted into the main compound. [26-32] Theoretically, the capacity of the host material depends on the number of transferred electrons coexisting with the intercalated ions, such that multivalent positive ions have higher weight capacity and energy density. [33] Notably, the element zinc (Zn) has become a common choice for a negative electrode material, owing to its ample sources, low price, low redox potential (−0.76 V vs standard hydrogen electrode), and high surface capacity. [34,35] The mixture of aqueous solution and/or aqueous solution and organic-based electrolyte has emerged as a new research field. Therefore, aqueous zinc ion batteries (ZIBs) have been widely considered for their advantages of high safety, low price, ecological friendliness, and high theoretical capacity. [36] Typically, aqueous ZIBs consist of a Zn metal negative electrode, an aqueous electrolyte that accounts for a majority of the battery material, and a positive electrode containing Zn 2+ ions. [37] A survey has revealed that the conventional With the increasing dependence on high power equipment, there is an urgent need to develop advanced and sustainable energy systems. As one of the main energy storage devices, battery research should make great efforts to implement the sustainable development strategies on ecological, clean and environmentally friendly energy. Currently, aqueous zinc ion batteries (ZIBs) have gained much attention owing to their cheapness, abundant resources, high safety, and ecological friendliness. Nevertheless, ZIBs als...

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Monoclinic VO₂(D) hollow nanospheres with super-long cycle life for aqueous zinc ion batteries

Abstract: Monoclinic VO2(D) hollow nanospheres are demonstrated to have long cyclic endurance stability in 3 M ZnSO4 electrolyte for aqueous zinc ion batteries.

Cited by 135 publications

References 37 publications

An Ultrahigh Performance Zinc‐Organic Battery using Poly(catechol) Cathode in Zn(TFSI)₂‐Based Concentrated Aqueous Electrolytes

An Ultrahigh Performance Zinc‐Organic Battery using Poly(catechol) Cathode in Zn(TFSI)₂‐Based Concentrated Aqueous Electrolytes

CoP Nanoparticles Intertwined with Graphene Nanosheets as a Superior Anode for Half/Full Sodium‐Ion Batteries

Vanadium‐Based Materials as Positive Electrode for Aqueous Zinc‐Ion Batteries

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Monoclinic VO2(D) hollow nanospheres with super-long cycle life for aqueous zinc ion batteries

Abstract: Monoclinic VO2(D) hollow nanospheres are demonstrated to have long cyclic endurance stability in 3 M ZnSO4 electrolyte for aqueous zinc ion batteries.

Cited by 135 publications

References 37 publications

An Ultrahigh Performance Zinc‐Organic Battery using Poly(catechol) Cathode in Zn(TFSI)2‐Based Concentrated Aqueous Electrolytes

An Ultrahigh Performance Zinc‐Organic Battery using Poly(catechol) Cathode in Zn(TFSI)2‐Based Concentrated Aqueous Electrolytes

CoP Nanoparticles Intertwined with Graphene Nanosheets as a Superior Anode for Half/Full Sodium‐Ion Batteries

Vanadium‐Based Materials as Positive Electrode for Aqueous Zinc‐Ion Batteries

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Monoclinic VO₂(D) hollow nanospheres with super-long cycle life for aqueous zinc ion batteries

An Ultrahigh Performance Zinc‐Organic Battery using Poly(catechol) Cathode in Zn(TFSI)₂‐Based Concentrated Aqueous Electrolytes

An Ultrahigh Performance Zinc‐Organic Battery using Poly(catechol) Cathode in Zn(TFSI)₂‐Based Concentrated Aqueous Electrolytes