Chloride-Free Electrolyte Based on Tetrabutylammonium Triflate Additive for Extended Anodic Stability in Magnesium Batteries

Chinnadurai, Deviprasath; Li, Yuanjian; Zhang, Chang; Yang, Gaoliang; Lieu, Wei Ying; Kumar, Sonal; Xing, Zhenxiang; Liu, Wei; Seh, Zhi Wei

doi:10.1021/acs.nanolett.3c03740

Cited by 10 publications

(2 citation statements)

References 76 publications

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“…[122,123] Rubber pristine nature rubber/Mg(OTf) 2 4.41×10 À 3 @ R.T. 0.77 t tot > 0.97, electrochemical window 2.5 V, Mg j nature graphite full cell: 1.7 V The calculation procedure follows the reported work of N. N. Rajput. [124] GCD: 0.5 mA/ cm 2 @0.5 mAh/cm 2 ; ICE ~90 % using Mg j Al-C 0.5 mA/ cm 2 @0.5 mAh/ cm 2 ; 0.29 V for the first cycle oxidative stablity:4.43 V vs. Pt; 4.01 V vs. Ni; 4.12 V vs. Mo and 3.63 V vs. SS [113]…”

Section: Discussionmentioning

confidence: 99%

“…Recently, D. Chinnadurai et al. reported a chloride‐free electrolyte based on the tetrabutylammonium triflate (TBAOTf) additive for extended anodic stability [113] . As shown in Figure 18a–c, adding TABOTf effectively reduces the plating overpotential of the Mg(OTf) 2 or Mg(HMDS) 2 electrolyte and significantly improves Colulombic efficiency.…”

Section: Application and Improvement Strategies Of Mg(otf)2‐based Ele...mentioning

confidence: 99%

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The Metamorphosis of Mg(SO₃CF₃)₂‐based Electrolytes for Rechargeable Magnesium Batteries

Chen,

Tan,

et al. 2024

ChemElectroChem

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Cost‐effective, non‐corrosive and non‐nucleophilic Mg(SO3CF3)‐based electrolytes with high anodization stability are promising candidates for realizing high‐performance rechargeable magnesium batteries (RMBs). Since the 1990s, the community has developed polymer‐based, room‐temperature molten salt‐based, chlorine‐containing and chlorine‐free electrolyte systems using Mg(SO3CF3)2 as the simple magnesium salt. However, there is currently a lack of overall understanding of the metamorphosis of Mg(SO3CF3)2‐based electrolytes. This survey reviews the development of various branches of Mg(SO3CF3)2‐based electrolytes, with a special focus on strategies to improve electrolyte performance. First, the utilization of various polymer matrices, room‐temperature molten salts, inorganic/organic chlorine salts and chelating ligands to promote the performance of Mg(SO3CF3)2‐based (quasi‐)solid and liquid electrolytes is outlined. Subsequently, combining the passivation nature of Mg(SO3CF3)2 and polar aprotic solvents toward the Mg anode and the current improvement strategies, the future challenges and opportunities of Mg(SO3CF3)2‐based electrolytes in various branches are discussed. These summaries and discussions will provide guidelines for the development of Mg(SO3CF3)2‐based electrolytes with desirable properties for RMBs.

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Section: Discussionmentioning

confidence: 99%

Section: Application and Improvement Strategies Of Mg(otf)2‐based Ele...mentioning

confidence: 99%

The Metamorphosis of Mg(SO₃CF₃)₂‐based Electrolytes for Rechargeable Magnesium Batteries

Chen,

Tan,

et al. 2024

ChemElectroChem

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Recent Progress in Computational Materials Science Boosting Development of Rechargeable Batteries

Tian,

Wang,

Yang

et al. 2024

Advanced Energy Materials

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Rechargeable batteries have been regarded as a truly transformative technology, providing energy storage for portable electronics, power tools, and even electric vehicles. Unfortunately, the practical applications of new battery systems are postponed by some inevitable technical bottlenecks. Sometimes the technical know‐how gained from the current state‐of‐the‐art lithium‐based batteries is untransferable. Therefore, with the continuous development of chemistry, materials and physics, computational materials science has gradually become crucial in supporting the field of rechargeable batteries technically. In this review, brief overviews of computational methods are first presented for the research of battery materials. The study then summarizes the recent advances of computational techniques in assisting experimental analyses, elucidating reaction mechanisms, and exploring new materials. Finally, the challenges and perspectives for future computational research are prospected. This review is anticipated to stimulate design inspiration of novel materials and structures with the assistance of theoretical simulations toward advanced energy storage systems.

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Effect of Chloride Ions on the Electrochemical Performance of Magnesium Metal‐Organic‐Frameworks‐Based Semi‐Solid Electrolytes

Elnagar,

Hassan,

Kibler

et al. 2024

Batteries & Supercaps

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The majority of research on magnesium (Mg) electrolytes has focused on enhancing reversible Mg deposition, often employing chloride‐containing electrolytes. However, there is a notable gap in the literature regarding the influence of chloride ions in semi‐solid Mg electrolytes. In this study, we systematically explore the impact of chloride ions on Mg deposition/dissolution on a copper (Cu) anode using a semi‐solid electrolyte composed of Mg‐based mixed metal‐organic frameworks, MgCl2 and Mg(TFSI)2. We separate the Mg deposition/dissolution process from changes in the anode’s surface morphology through cyclic voltammetry and galvanostatic cycling. In this respect, the morphological and compositional transformations in the electrolyte and electrode following galvanostatic cycling are meticulously investigated. Initial potential cycling reveals the feasibility of Mg deposition/dissolution on Cu electrodes, albeit with reduced reversibility in subsequent cycles. Extending the upper potential limit to 4.0 V vs. Mg/Mg2+ enhances Mg dissolution, attributed to chloride ions facilitating Cu surface dissolution. Our findings provide insights into optimizing semi‐solid electrolytes for advanced Magnesium battery technologies.

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Chloride-Free Electrolyte Based on Tetrabutylammonium Triflate Additive for Extended Anodic Stability in Magnesium Batteries

Cited by 10 publications

References 76 publications

The Metamorphosis of Mg(SO₃CF₃)₂‐based Electrolytes for Rechargeable Magnesium Batteries

The Metamorphosis of Mg(SO₃CF₃)₂‐based Electrolytes for Rechargeable Magnesium Batteries

Recent Progress in Computational Materials Science Boosting Development of Rechargeable Batteries

Effect of Chloride Ions on the Electrochemical Performance of Magnesium Metal‐Organic‐Frameworks‐Based Semi‐Solid Electrolytes

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Chloride-Free Electrolyte Based on Tetrabutylammonium Triflate Additive for Extended Anodic Stability in Magnesium Batteries

Cited by 10 publications

References 76 publications

The Metamorphosis of Mg(SO3CF3)2‐based Electrolytes for Rechargeable Magnesium Batteries

The Metamorphosis of Mg(SO3CF3)2‐based Electrolytes for Rechargeable Magnesium Batteries

Recent Progress in Computational Materials Science Boosting Development of Rechargeable Batteries

Effect of Chloride Ions on the Electrochemical Performance of Magnesium Metal‐Organic‐Frameworks‐Based Semi‐Solid Electrolytes

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The Metamorphosis of Mg(SO₃CF₃)₂‐based Electrolytes for Rechargeable Magnesium Batteries

The Metamorphosis of Mg(SO₃CF₃)₂‐based Electrolytes for Rechargeable Magnesium Batteries