Sandwich-structured graphene-like MoS2/C microspheres for rechargeable Mg batteries

Liu, Yongchang; Jiao, Lifang; Wu, Qiong; Du, Juan; Zhao, Yanping; Si, Yuchang; Wang, Yijing; Yuan, Huatang

doi:10.1039/c3ta10786h

Cited by 137 publications

(105 citation statements)

References 39 publications

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“…After 24 hrs, the voltage slightly changed from 1.37 V, which is an initial voltage measured soon after the charging process, to 1.30 V despite the absence of separator in this cell. This result indicates the Br 2 and/or Br 3 − , which was produced by oxidation reaction of the [AlBr 4 ] − , are stably absorbed to the activated carbon fiber cloth and they are electrochemically-active. As shown in Fig.…”

Section: Positive Electrode Reaction Using [Albr 4 ]mentioning

confidence: 85%

“…In this Al rechargeable energy storage device system, ionic species at the vicinity of electrodes significantly alter by the electrochemical reactions during the chargedischarge process. For example, at the charging process, aluminum metal electrochemically deposits on the negative electrode, and then Lewis basicity increases rapidly at the vicinity of the electrode due to the increase of the [AlBr 4 ] − anions yielded by Reaction 2. Of course the similar matter also occurs on the positive electrode by Reactions 3 and 4, and in this case Lewis acidity increases.…”

Section: Positive Electrode Reaction Using [Albr 4 ]mentioning

confidence: 99%

“…In recent years, a multivalent-metal ion, e.g., Mg(II), rechargeable battery system has attracted attention as a next generation high-capacity battery system because it can flow a larger current exceeding the lithium-ion rechargeable battery. [1][2][3][4] However it is difficult to electrochemically reduce such multivalent-metal ion due to its negative electrode potential. Even if the metal ion is reduced to metal state, in many cases, it would not achieve a sufficient coulomb efficiency in the chargedischarge process since the highly-reactive metal deposited on the negative electrode during the charging process easily reacts with the electrolyte.…”

mentioning

confidence: 99%

“…If any, the active material does not show a favorable coulomb efficiency and the charge-discharge rate is not enough compared to that for current Li battery system. [2][3][4] Another possible high-capacity electrochemical energy storage system is a redox flow battery, which has a low environmental impact and can store a huge energy. Unfortunately still many scientific and technological challenges, such as improvement in the electrolyte potential window and development of the separator that can perfectly protect the catholyte and anolyte against their undesirable contamination, remain.…”

mentioning

confidence: 99%

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Electrochemical Energy Storage Device with a Lewis Acidic AlBr₃−1-Ethyl-3-methylimidazolioum Bromide Room-Temperature Ionic Liquid

Tsuda¹,

Kokubo²,

Kawabata³

et al. 2014

J. Electrochem. Soc.

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Now room-temperature ionic liquid (RTIL) is becoming a general term in the fields of science and technology owing to its useful physicochemical properties. A great number of applications with RTIL are proposed to date. Here we report an original electrochemical energy storage device with a Lewis acidic 60.0-40.0 mol% AlBr 3 −1-ethyl-3-methylimidazolioum bromide ([C 2 mim]Br) RTIL. The unique electrochemical reactions related to [AlBr 4 ] − anion on the positive electrode have a crucial role in the energy storage device. The charge-discharge ratio for the beaker cell prepared in this investigation was almost 100% at 2.0 ∼ 5.0 mA (150 ∼ 370 mA g −1 for activated carbon fiber cloth) if the cutoff voltage for the charging process was less than 1.70 V. The clear self-discharge behavior was not observed and the cell capacity after 100 cycles was identical to the maximum value. Rechargeable battery is a quite important energy storage device for sustaining our modern life. It is well-known that there are many types of rechargeable batteries. Of these, lithium-ion rechargeable battery has been already used in the various fields, but minor elements including lithium and cobalt are commonly used for the battery. It will become a major difficulty by further development of lithium-ion battery industry in the future. In addition, it seems to be unsuitable for a large scale electric storage system because of its insufficient rapid charge-discharge characteristics and safety issue. In recent years, a multivalent-metal ion, e.g., Mg(II), rechargeable battery system has attracted attention as a next generation high-capacity battery system because it can flow a larger current exceeding the lithium-ion rechargeable battery. [1][2][3][4] However it is difficult to electrochemically reduce such multivalent-metal ion due to its negative electrode potential. Even if the metal ion is reduced to metal state, in many cases, it would not achieve a sufficient coulomb efficiency in the chargedischarge process since the highly-reactive metal deposited on the negative electrode during the charging process easily reacts with the electrolyte. Another problematic point is that there are a limited number of choices on active materials for the positive electrode. If any, the active material does not show a favorable coulomb efficiency and the charge-discharge rate is not enough compared to that for current Li battery system.2-4 Another possible high-capacity electrochemical energy storage system is a redox flow battery, which has a low environmental impact and can store a huge energy. Unfortunately still many scientific and technological challenges, such as improvement in the electrolyte potential window and development of the separator that can perfectly protect the catholyte and anolyte against their undesirable contamination, remain. 5-9Room-temperature ionic liquids (RTILs) that are liquid salts at room-temperature, e.g., 298 K, have received considerable attention as novel reaction media, especially in this decade, because of their desirable ...

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Section: Positive Electrode Reaction Using [Albr 4 ]mentioning

confidence: 85%

Section: Positive Electrode Reaction Using [Albr 4 ]mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Electrochemical Energy Storage Device with a Lewis Acidic AlBr₃−1-Ethyl-3-methylimidazolioum Bromide Room-Temperature Ionic Liquid

Tsuda¹,

Kokubo²,

Kawabata³

et al. 2014

J. Electrochem. Soc.

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“…Thus the search for suitable cathode and less passivated anode/electrolyte conguration is intrinsically urging [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effect of Tetraethylene Glycol Dimethyl Ether on Electrical, Structural and Thermal Properties of PVA-Based Polymer Electrolyte for Magnesium Battery

et al. 2015

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The aim of the contribution is to introduce a high performance magnesium conducting polymer electrolytes (PEs) comprising hybrid of poly(vinyl alcohol) (PVA), magnesium bromide (MgBr2) and tetraethylene glycol dimethyl ether (TEGDME) as plasticizer are prepared at various compositions by solution cast technique. X-ray diraction and thermogravimetric analyses suggest a substantial structural modication, decrease in crystallinity and various interactions in the polymer electrolyte components due to addition of TEGDME. Also there is a marked decrease in Tg with increasing TEGDME. The conductivity conformation with the addition of plasticizer which can be explained on the basis of dissociation of ion aggregates formed in PVAMgBr2 polymer electrolytes at higher concentrations of the salt. The ionic conductivity of the polymer electrolyte increased with addition of salt and plasticizer reached to the highest conductivity value of ≈10 −6 S cm −1 at 0.8 ml TEGDME. The frequency dependence of AC conductivity obeys the Jonscher power law. The estimated value of Mg +2 ion transference number is found to be 0.68 for high conducting lm. The open circuit voltage of a solid state battery which based on the optimum polymer electrolyte with a conguration Mg|PE|V2O5 is 1.5 V. Also this battery has exhibited a discharge capacity ≈ 3.78 mAh/g. The discharge characteristics are found to be satisfactory as a laboratory cell.

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Layered Materials in the Magnesium Ion Batteries: Development History, Materials Structure, and Energy Storage Mechanism

Zhang

Wang

et al. 2023

Adv Funct Materials

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Layered crystal materials have blazed a promising trail in the design and optimization of electrodes for magnesium ion batteries (MIBs). The layered crystal materials effectively improve the migration kinetics of the Mg2+ storage process to deliver a high energy and power density. To meet the future demand for high‐performance MIBs, significant work has been applied to layered crystal materials, including crystal modification, mechanism investigation, and micro/nanostructure design. Herein, this review presents a comprehensive overview of layered crystal materials applied to MIBs, from development history to current applications. It focuses on the relationship between the layered crystal structure and the energy storage mechanism. Meanwhile, recent achievements in the design principles of layered crystal materials and their application to electrodes are summarized. Finally, future perspectives on the application of layered materials in MIBs are presented. The overview of the development process and structural characteristics contributes to a thorough understanding of these materials, while a discussion of design strategies and practical applications can inspire further research. Therefore, this review provides guidance and assistance for constructing high‐performance MIBs.

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Sandwich-structured graphene-like MoS2/C microspheres for rechargeable Mg batteries

Cited by 137 publications

References 39 publications

Electrochemical Energy Storage Device with a Lewis Acidic AlBr₃−1-Ethyl-3-methylimidazolioum Bromide Room-Temperature Ionic Liquid

Electrochemical Energy Storage Device with a Lewis Acidic AlBr₃−1-Ethyl-3-methylimidazolioum Bromide Room-Temperature Ionic Liquid

Effect of Tetraethylene Glycol Dimethyl Ether on Electrical, Structural and Thermal Properties of PVA-Based Polymer Electrolyte for Magnesium Battery

Layered Materials in the Magnesium Ion Batteries: Development History, Materials Structure, and Energy Storage Mechanism

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Sandwich-structured graphene-like MoS2/C microspheres for rechargeable Mg batteries

Cited by 137 publications

References 39 publications

Electrochemical Energy Storage Device with a Lewis Acidic AlBr3−1-Ethyl-3-methylimidazolioum Bromide Room-Temperature Ionic Liquid

Electrochemical Energy Storage Device with a Lewis Acidic AlBr3−1-Ethyl-3-methylimidazolioum Bromide Room-Temperature Ionic Liquid

Effect of Tetraethylene Glycol Dimethyl Ether on Electrical, Structural and Thermal Properties of PVA-Based Polymer Electrolyte for Magnesium Battery

Layered Materials in the Magnesium Ion Batteries: Development History, Materials Structure, and Energy Storage Mechanism

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Product

Resources

About

Electrochemical Energy Storage Device with a Lewis Acidic AlBr₃−1-Ethyl-3-methylimidazolioum Bromide Room-Temperature Ionic Liquid

Electrochemical Energy Storage Device with a Lewis Acidic AlBr₃−1-Ethyl-3-methylimidazolioum Bromide Room-Temperature Ionic Liquid