Interfaces in rechargeable magnesium batteries

Shi, Jiayan; Zhang, Jian; Guo, Juchen; Lü, Jun

doi:10.1039/d0nh00379d

Cited by 29 publications

(26 citation statements)

References 77 publications

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“…Even low levels of impurities, e.g., H 2 O, can lead to reactions impacting the measured capacity of a cell. Several recent reviews are available in the literature covering the approaches to designing stable Mg electrolytes, such as weakly coordinating anions, solvation, and derivatization. − The current state of MV cation energy storage, therefore, necessitates an intense holistic approach investigating the reliability of electrolytes, without which decoupling the solid-state Mg intercalation capacitance from parallel parasitic reactions is extremely challenging.…”

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confidence: 99%

The Quest for Functional Oxide Cathodes for Magnesium Batteries: A Critical Perspective

2021

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The Mg battery is an energy storage technology which has garnered significant interest in recent years. Mg batteries incorporating a metal oxide cathode (MOC) are potential candidates to supersede the state-of-the-art Li-ion battery in energy density, cost, and sustainability. However, there are significant discrepancies in reported performances and reactivities of Mg battery MOCs, with detailed analyses revealing that parasitic electrolyte reactions can contribute almost entirely to the measured capacity. This Perspective describes a holistic approachencompassing elemental, redox, and structural probeswhich is vital to robustly confirm and quantify Mg intercalation in MOCs. It critically surveys recent literature for applications of this approach to reveal true state-of-the-art MOCs for Mg batteries. We also suggest testing and analysis protocols to ensure fair comparison of future reports with these state-of-the-art materials.

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confidence: 99%

The Quest for Functional Oxide Cathodes for Magnesium Batteries: A Critical Perspective

2021

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“…19 However, it can be argued that such utilization of alloys would hinder the high energy density that magnesium ion batteries are predicted to portray. 24 Thereby, directly applying a metallic magnesium anode seems to be the most reasonable option.…”

Section: Anode Selectionmentioning

confidence: 99%

Magnesium-ion batteries for electric vehicles: Current trends and future perspectives

Shah¹,

Mittal

Matsil³

et al. 2021

Advances in Mechanical Engineering

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Lithium-ion batteries have enabled electric vehicles to achieve a foothold in the automobile market. Due to an increasing environmental consciousness, electric vehicles are expected to take a larger portion of the market, with the ultimate goal of supplanting traditional vehicles. However, the involved costs, sustainability, and technical limitations of lithium-ion batteries do create substantial obstacles to this goal. Therefore, this article aims at presenting magnesium-ion batteries as a potential replacement for lithium-ion batteries. Though still under development, magnesium-ion batteries show promise in achieving similar volumetric and specific capacities to lithium-ion batteries. Additionally, magnesium is substantially more abundant than lithium, allowing for the batteries to be cheaper and more sustainable. Numerous technical challenges related to cathode and electrolyte selection are yet to be solved for magnesium-ion batteries. This paper discusses the current state-of-the-art of magnesium-ion batteries with a particular emphasis on the material selection. Although, current research indicates that sulfur-based cathodes coupled with a (HMDS)2Mg-based electrolyte shows substantial promise, other options could allow for a better performing battery. This paper addresses the challenges (materials and costs) and benefits associated with developing these batteries. When overcoming these challenges, magnesium-ion batteries are posed to be a groundbreaking technology potentially revolutionizing the vehicle industry.

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“…One of the most interesting solutions seems to be represented by the rechargeable magnesium-ion batteries (MIBs) [92][93][94][95][96], which utilize magnesium cations as the active charge transporting species in solution and (in many cases) metallic magnesium as the anode. A primary advantage of this technology is given by the solid magnesium anode that leads to high energy density values, well above those of lithium-based cells [97][98][99][100][101]. However, some issues have emerged when using elemental magnesium and novel solutions have been proposed.…”

Section: Introductionmentioning

confidence: 99%

An Overview on Anodes for Magnesium Batteries: Challenges towards a Promising Storage Solution for Renewables

et al. 2021

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Magnesium-based batteries represent one of the successfully emerging electrochemical energy storage chemistries, mainly due to the high theoretical volumetric capacity of metallic magnesium (i.e., 3833 mAh cm−3 vs. 2046 mAh cm−3 for lithium), its low reduction potential (−2.37 V vs. SHE), abundance in the Earth’s crust (104 times higher than that of lithium) and dendrite-free behaviour when used as an anode during cycling. However, Mg deposition and dissolution processes in polar organic electrolytes lead to the formation of a passivation film bearing an insulating effect towards Mg2+ ions. Several strategies to overcome this drawback have been recently proposed, keeping as a main goal that of reducing the formation of such passivation layers and improving the magnesium-related kinetics. This manuscript offers a literature analysis on this topic, starting with a rapid overview on magnesium batteries as a feasible strategy for storing electricity coming from renewables, and then addressing the most relevant outcomes in the field of anodic materials (i.e., metallic magnesium, bismuth-, titanium- and tin-based electrodes, biphasic alloys, nanostructured metal oxides, boron clusters, graphene-based electrodes, etc.).

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Interfaces in rechargeable magnesium batteries

Abstract: This minireview provides a concise overview on the development of electrolytes for rechargeable magnesium (Mg) batteries. The intrinsic driving force of the evolution from Grignard-based electrolytes to electrolytes based on...

Cited by 29 publications

References 77 publications

The Quest for Functional Oxide Cathodes for Magnesium Batteries: A Critical Perspective

The Quest for Functional Oxide Cathodes for Magnesium Batteries: A Critical Perspective

Magnesium-ion batteries for electric vehicles: Current trends and future perspectives

An Overview on Anodes for Magnesium Batteries: Challenges towards a Promising Storage Solution for Renewables

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