Electrochemical Stability of Magnesium Battery Current Collectors in a Grignard Reagent-Based Electrolyte

Yagi, Shunsuke; Tanaka, Akira; Ichikawa, Y.; Ichitsubo, Tetsu; Matsubara, Eiichiro

doi:10.1149/2.033303jes

Cited by 115 publications

(130 citation statements)

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“…As reported in previous studies, [22][23][24] the common metal current collectors such as Nif, Cuf and SSf exhibited limited anodic stability in APC electrolyte. For example, the stable Figure 6a.…”

Section: Electrochemical Measurementssupporting

confidence: 62%

“…However, even though these electrolytes perform remarkably well with the Mg anodes, most of them contain high concentrations of chloride anions which cause severe corrosion of most known current collectors made from metals. 2,4,21 Some typical metals (Cu, Al, Ni and stainless steel) in these electrolytes are basically anodically unstable at potentials of 2.0 V vs. Mg, [22][23][24] and thus result in high contact resistance between the active materials and the current collectors during electrochemical measurements. This severely affects the battery performance of the cathode materials.…”

Section: Introductionmentioning

confidence: 99%

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Sponge-Like Porous Manganese(II,III) Oxide as a Highly Efficient Cathode Material for Rechargeable Magnesium Ion Batteries

et al. 2016

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Here, we are the first to report a spinel type Mn3O4 as cathode material for Mg-ion battery (MIB) with graphite foil (Gif) as current collector. High coulombic efficiency and good cyclic stability of Mn3O4 are demonstrated, and the process is enhanced by using Mn3O4 nanoparticles with a sponge-like morphology. The powder exhibits a network of interconnected mesopores with well-dispersed nanoparticles (~10 nm) and large specific surface area (102 m 2 g -1 ). This structural configuration provides easy access for electrolyte penetration which markedly enhances the utilization of electroactive material, generates high ion flux across the electrode-electrolyte interface and provides more active sites for electrochemical reactions to occur. This study can possibly open the way for exploring other similar compounds with a spinel type structure for MIB.

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Section: Electrochemical Measurementssupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Sponge-Like Porous Manganese(II,III) Oxide as a Highly Efficient Cathode Material for Rechargeable Magnesium Ion Batteries

et al. 2016

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“…The anodic currents below the decomposition potential of the electrolyte on Pt working electrodes have been reported for Mg electrolytes with similar composition before and were attributed to pitting corrosion of the current collectors. 8,9,11,12 This observation was confirmed by investigation of the current collectors after the polarization by SEM, showing that the surface of the current collectors were covered with corrosion pits which is shown exemplarily for a Ni current collector in Figure 1b.Motivated by previous reports of high anodic stability of Grignard based electrolytes on glassy carbon and carbon coated Ti working electrodes, 9 the corrosion resistance of carbonaceous surfaces was investigated by linear sweep voltammetry and chronoamperometry.As shown in Figure 2a, a high anodic stability beyond 3 V was observed for a graphite current collector in linear sweep voltammetry. During chronoamperometry at a potential of 2.5 V vs. Mg/Mg 2+ no increase of the current density was measured during 48 h, confirming the good stability of the graphite current collector in the electrolyte.…”

supporting

confidence: 57%

Corrosion Resistance of Current Collector Materials in Bisamide Based Electrolyte for Magnesium Batteries

Wall

Zhao‐Karger

Fichtner

2014

ECS Electrochemistry Letters

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The compatibility of Ti, Cr, Ni, Fe, Al, steel type 304, Inconel 625, Hastelloy B and carbon coated current collectors with bisamide based electrolyte for Mg-batteries was investigated. Pitting corrosion of current collectors made from 3d-transition metals and steel type 304 was observed at potentials between 2.2-3.1 V vs. Mg/Mg 2+ . Anodic stability up to 3.8 V and resistance against corrosion for 48 h at a potential of 2.5 V vs. Mg/Mg 2+ and above was found for Inconel 625, Hastelloy B, graphite and carbon coated Al foil. © The Author(s) 2014. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited. For permission for commercial reuse, please email: oa@electrochem.org. [DOI: 10.1149/2.0111501eel] All rights reserved.Manuscript submitted October 9, 2014; revised manuscript received November 10, 2014. Published November 18, 2014 Recently Mg batteries have gained large interest due to the high theoretical energy density of Mg (2233 mAh g −1 and 3832 mAh cm −3 , respectively) but also because of the comparable low price, high abundance and the non-toxic properties of Mg.1,2 In contrast to metallic Li, no dendrite formation has been observed during electrochemical cycling of Mg.3,4 Thus, the technical application of metallic Mg anodes for secondary batteries with liquid electrolyte is not hampered by safety concerns as they exist for metallic Li. As the energy density of a battery is determined by the capacity of the electrode materials and by the potential difference between the anode and the cathode, both should be as high as possible. However, high operation potentials increase the driving force for oxidative decomposition of the electrolyte as well as for corrosion of the current collector at the cathode. Anodic stabilities of electrolytes exceeding 3 V vs. Mg/Mg 2+ have been demonstrated recently. [5][6][7] However, until now all electrolytes for Mg batteries with good electrochemical performance (i.e. large voltage window, compatibility with metallic Mg and high ionic conductivity) contain chlorine, which was found to cause severe corrosion of current collectors made from Cu, Al, Ti and stainless steel. 2,8,9Recently we developed a synthesis for bisamide based electrolytes with unprecedented anodic stability by reaction of magnesiumbis(hexamethyldisilazide) [(HMDS) 2 Mg] with AlCl 3 in different aprotic solvents, which are compatible with sulfur cathodes. 5,10 In order to utilize such electrolytes for magnesium batteries, we have now studied the corrosion behavior of various metals and steels and investigated if corrosion can be mitigated by a carbon coating. ExperimentalChronoamperometry and linear sweep voltammetry of current collectors was conducted vs. Mg foil, (Goodfellow, 99.99 %) in two...

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“…[24,57] In addition, corrosion on metallic current collectors has been verified with such chloride ion containing electrolytes. [64,65] It has therefore been one of the goals to develop highly ion conductive Mg salts, which have favorable electrolytic characteristics, are chemically compatible with the electrode materials and non-corrosive against battery parts. In addition, they should be non-toxic, stable at ambient conditions, and be economically prepared from low-cost starting materials.…”

Section: Electrolytes From Chloride-free Magnesium Saltsmentioning

confidence: 99%

Magnesium-sulfur battery: its beginning and recent progress

Zhao‐Karger

Fichtner

2017

MRS Communications

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Rechargeable magnesium (Mg) battery has been considered as a promising candidate for future battery generations because of its potential high-energy density, its safety features and low cost. The challenges lying ahead for the realization of Mg battery in general are to develop proper electrolytes fulfilling a multitude of requirements and to discover cathode materials enabling high-energy Mg batteries. The combination of Mg anode with a sulfur cathode is one of the promising electrochemical couples due to its advantages of safety, low costs, and a high theoretical energy density of over 3200 Wh/L. However, the research on magnesium-sulfur (Mg-S) battery is just at its beginning and the development of suitable electrolytes has been the key challenge for further improvement, and, thus, in the focus of recent research. In this review, we highlight the recent progress achieved in Mg electrolytes and Mg-S batteries and discuss the major technical issues, which must be resolved for the improvement of Mg-S batteries.

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Electrochemical Stability of Magnesium Battery Current Collectors in a Grignard Reagent-Based Electrolyte

Cited by 115 publications

References 23 publications

Sponge-Like Porous Manganese(II,III) Oxide as a Highly Efficient Cathode Material for Rechargeable Magnesium Ion Batteries

Sponge-Like Porous Manganese(II,III) Oxide as a Highly Efficient Cathode Material for Rechargeable Magnesium Ion Batteries

Corrosion Resistance of Current Collector Materials in Bisamide Based Electrolyte for Magnesium Batteries

Magnesium-sulfur battery: its beginning and recent progress

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