Electrolyte Strategies toward Better Zinc-Ion Batteries

Liu, Cunxin; Xie, Xuesong; Lu, Bingan; Zhou, Jiang; Liang, Shuquan

doi:10.1021/acsenergylett.0c02684

Cited by 530 publications

(325 citation statements)

References 162 publications

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“…Aqueous zinc‐ion batteries (ZIBs) are considered as promising energy storage system because of the low‐cost, environmental benign, resource abundance, high capacity (theoretically 820 mA h g −1 ), and low redox potential (−0.76 V vs. SHE) of metallic zinc anode as well as the high ionic conductivity of aqueous electrolyte 1–10 . Despite the various cathode may apply, such as manganese‐based, 11–18 vanadium‐based, 19–25 cobalt‐based, 26 and organized materials, 27–32 most of the reported aqueous ZIBs system are based on the conventional Zn 2+ intercalation and the performance of the systems is therefore largely limited by the inferior reaction kinetics.…”

Section: Introductionmentioning

confidence: 99%

Interfacial adsorption–insertion mechanism induced by phase boundary toward better aqueous Zn‐ion battery

Shan

Wang

Liang

et al. 2021

InfoMat

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217

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Biphasic and multiphasic compounds have been well clarified to achieve extraordinary electrochemical properties as advanced energy storage materials. Yet the role of phase boundaries in improving the performance is remained to be illustrated. Herein, we reported the biphasic vanadate, that is, Na1.2V3O8/K2V6O16·1.5H2O (designated as Na0.5K0.5VO), and detected the novel interfacial adsorption–insertion mechanism induced by phase boundaries. First‐principles calculations indicated that large amount of Zn2+ and H+ ions would be absorbed by the phase boundaries and most of them would insert into the host structure, which not only promote the specific capacity, but also effectively reduce diffusion energy barrier toward faster reaction kinetics. Driven by this advanced interfacial adsorption–insertion mechanism, the aqueous Zn/Na0.5K0.5VO is able to perform excellent rate capability as well as long‐term cycling performance. A stable capacity of 267 mA h g−1 after 800 cycles at 5 A g−1 can be achieved. The discovery of this mechanism is beneficial to understand the performance enhancement mechanism of biphasic and multiphasic compounds as well as pave pathway for the strategic design of high‐performance energy storage materials.

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Section: Introductionmentioning

confidence: 99%

Interfacial adsorption–insertion mechanism induced by phase boundary toward better aqueous Zn‐ion battery

Shan

Wang

Liang

et al. 2021

InfoMat

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217

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“…However, it still requires further research about the effects of anion groups on the organic electrode and "water-insalt" electrolyte. [129] Besides, divalent metal ions are more likely to combine with anions to form ion pairs. In recent report, trimethyl phosphate (TMP) solvent with strong electron donation ability is employed to prepare Zn (TFSI) 2 /EMC electrolyte.…”

Section: Regulation Of Voltage Windowmentioning

confidence: 99%

Fundamental Understanding and Effect of Anionic Chemistry in Zinc Batteries

Gao

Liu

Guo

et al. 2021

Energy & Environ Materials

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With the merit of high capacity, high safety, and low cost, zinc‐ion batteries (ZIBs) possess huge application potential in the domain of large‐scale energy storage. However, due to the relatively narrow voltage window and large lattice distortion of cationic redox reaction, ZIBs tend to present low energy density, poor kinetics, and unstable cyclic performance. Anion chemistry seems to provide a novel strategy to solve these issues from different aspects, such as enhanced operating voltage, extra capacity contribution, and boosted reaction kinetics. Considering the significance of this theory and the lack of relevant literatures, herein, in‐depth comprehension of anionic chemistry and its positive effects on zinc storage performance have been emphasized and summarized. This review aims to present a full scope of anionic chemistry and furnish systematic cognition for rational design of advanced ZIBs with high energy density. Furthermore, insightful analysis and perspectives based on the current research status also have been proposed, which may point out some scientific suggestions and directions for the future research.

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“…The ion conductivity is relatively low due to low fluidity, which needs more exploration. [40] Researchers assembled a flexible zinc-ion battery using gel electrolyte and quasi-solid electrolyte, achieving good specific capacity and cycle stability. It ushered in a new era of portable devices.…”

Section: Solid Electrolytementioning

confidence: 99%

Recent Advances on Spinel Zinc Manganate Cathode Materials for Zinc‐Ion Batteries

Cai

Luo

Feng

et al. 2021

The Chemical Record

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Zinc metal is abundant in nature, non‐toxic, harmless, and cheap. Zinc‐ion batteries (ZIBs) have also emerged as the times require, which has attracted scholars′ research interest. In the zinc‐ion batteries, the cathode material is indispensable. Manganese oxides are widely used in electrode materials because of their various valence states (+2, +3, +4, +7). ZnMn2O4 (ZMO) is a mixed metal oxide with a spinel structure similar to LiMn2O4. Due to the synergistic effect of Zn and Mn, it has the advantages of high theoretical capacity. In recent years, researchers have gradually applied ZnMn2O4 to zinc ion batteries. In order to obtain high‐energy‐density zinc ion batteries, it is also very important to match electrolytes with a wide operating voltage window and develop a highly reversible anode. In the first instance, we investigate the research progress of spinel ZnMn2O4 as a reliable candidate material for zinc ion batteries. Later on, we review the optimization and modification measures of anode and electrolyte to improve the electrochemical properties of spinel ZnMn2O4. On this basis, we propose the reasonable research direction and development prospects for this material. It is hoped that there will be a help to researchers in this field.

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Electrolyte Strategies toward Better Zinc-Ion Batteries

Cited by 530 publications

References 162 publications

Interfacial adsorption–insertion mechanism induced by phase boundary toward better aqueous Zn‐ion battery

Interfacial adsorption–insertion mechanism induced by phase boundary toward better aqueous Zn‐ion battery

Fundamental Understanding and Effect of Anionic Chemistry in Zinc Batteries

Recent Advances on Spinel Zinc Manganate Cathode Materials for Zinc‐Ion Batteries

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