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Unlocking Four‐electron Conversion in Tellurium Cathodes for Advanced Magnesium‐based Dual‐ion Batteries

Ahiud Morag, Xingyuan Chu, Maciej Marczewski, Jonas Kunigkeit, more

Angewandte Chemie International Edition > 63 > 19 > n/a - n/a

Magnesium (Mg) batteries hold promise as a large‐scale energy storage solution, but their progress has been hindered by the lack of high‐performance cathodes. Here, we address this challenge by unlocking the reversible four‐electron Te⁰/Te⁴⁺ conversion in elemental Te, enabling the demonstration of superior Mg//Te dual‐ion batteries. Specifically, the classic magnesium aluminum chloride complex (MACC)...

article

Unlocking Four‐electron Conversion in Tellurium Cathodes for Advanced Magnesium‐based Dual‐ion Batteries

Ahiud Morag, Xingyuan Chu, Maciej Marczewski, Jonas Kunigkeit, more

Angewandte Chemie > 136 > 19 > n/a - n/a

Magnesium (Mg) batteries hold promise as a large‐scale energy storage solution, but their progress has been hindered by the lack of high‐performance cathodes. Here, we address this challenge by unlocking the reversible four‐electron Te⁰/Te⁴⁺ conversion in elemental Te, enabling the demonstration of superior Mg//Te dual‐ion batteries. Specifically, the classic magnesium aluminum chloride complex (MACC)...

article

Accessing Mg‐Ion Storage in V₂PS₁₀ via Combined Cationic‐Anionic Redox with Selective Bond Cleavage

Matthew A. Wright, T. Wesley Surta, Jae A. Evans, Jungwoo Lim, more

Angewandte Chemie International Edition > 63 > 18 > n/a - n/a

Magnesium batteries attract interest as alternative energy‐storage devices because of elemental abundance and potential for high energy density. Development is limited by the absence of suitable cathodes, associated with poor diffusion kinetics resulting from strong interactions between Mg²⁺ and the host structure. V₂PS₁₀ is reported as a positive electrode material for rechargeable magnesium batteries...

article

Accessing Mg‐Ion Storage in V₂PS₁₀ via Combined Cationic‐Anionic Redox with Selective Bond Cleavage

Matthew A. Wright, T. Wesley Surta, Jae A. Evans, Jungwoo Lim, more

Angewandte Chemie > 136 > 18 > n/a - n/a

Magnesium batteries attract interest as alternative energy‐storage devices because of elemental abundance and potential for high energy density. Development is limited by the absence of suitable cathodes, associated with poor diffusion kinetics resulting from strong interactions between Mg²⁺ and the host structure. V₂PS₁₀ is reported as a positive electrode material for rechargeable magnesium batteries...

article

Polysulfides in Magnesium‐Sulfur Batteries

Tongtong Luo, Yang Wang, Brooke Elander, Michael Goldstein, more

Advanced Materials > 36 > 7 > n/a - n/a

Mg‐S batteries hold great promise as a potential alternative to Li‐based technologies. Their further development hinges on solving a few key challenges, including the lower capacity and poorer cycling performance when compared to Li counterparts. At the heart of the issues is the lack of knowledge on polysulfide chemical behaviors in the Mg‐S battery environment. In this Review, a comprehensive overview...

article

Magnesium‐Ion Battery Anode from Polymer‐Derived SiOC Nanobeads

Wuqi Guo, Oyku Icin, Cekdar Vakifahmetoglu, Delf Kober, more

Advanced Functional Materials > 33 > 48 > n/a - n/a

Tin‐containing silicon oxycarbide (SiOC/Sn) nanobeads are synthesized with different carbon/tin content and tested as electrodes for magnesium‐ion batteries. The synthesized ceramics are characterized by thermogravimetric‐mass spectroscopy, Fourier‐transform infrared spectroscopy, X‐ray diffraction (XRD), Raman spectroscopy, N₂ sorption analysis, scanning electron microscope, energy‐dispersive X‐ray,...

article

A Low‐Cost and Recyclable Mg/SOCl₂ Primary Battery Via Synergistic Solvation and Kinetics Regulation

Qiuchen Xu, Shitao Geng, Bin Yuan, Meng Liao, more

Advanced Functional Materials > 33 > 5 > n/a - n/a

Lithium/thionyl chloride (Li/SOCl₂) primary batteries are appealing power solutions because of their remarkable electrochemical performances. However, their mass applications are hindered by the challenges in sustainability, cost and safety concerns owing to the employed Li chemistry. Here, magnesium (Mg) chemistry is shown as a promising alternative through synergistic optimization of electrolyte...

article

Organic Electrolyte Design for Rechargeable Batteries: From Lithium to Magnesium

Heng Zhang, Lixin Qiao, Michel Armand

Angewandte Chemie International Edition > 61 > 52 > n/a - n/a

Rechargeable magnesium batteries (RMBs) have been considered as one of the most viable battery chemistries amongst the “post” lithium‐ion battery (LIB) technologies owing to their high volumetric capacity and the natural abundance of their key elements. The fundamental properties of Mg‐ion conducting electrolytes are of essence to regulate the overall performance of RMBs. In this Review, the basic...

article

Organic Electrolyte Design for Rechargeable Batteries: From Lithium to Magnesium

Heng Zhang, Lixin Qiao, Michel Armand

Angewandte Chemie > 134 > 52 > n/a - n/a

Rechargeable magnesium batteries (RMBs) have been considered as one of the most viable battery chemistries amongst the “post” lithium‐ion battery (LIB) technologies owing to their high volumetric capacity and the natural abundance of their key elements. The fundamental properties of Mg‐ion conducting electrolytes are of essence to regulate the overall performance of RMBs. In this Review, the basic...

article

Electrolyte and Interphase Design for Magnesium Anode: Major Challenges and Perspectives

Yue Sun, Fei Ai, Yi‐Chun Lu

Small > 18 > 43 > n/a - n/a

The rechargeable magnesium battery (RMB) is regarded as a high‐energy, safe, and cost‐effective alternative for conventional batteries. Unfortunately, the passivation and uneven Mg growth not only raise the voltage hysteresis but also shorten the cycle life of RMBs. In this review, Mg passivation induced by electrolytes/contaminants, growth patterns of high dimensional Mg⁰, and mechanisms of Mg anode...

article

Stable Solid Electrolyte Interphase In Situ Formed on Magnesium‐Metal Anode by using a Perfluorinated Alkoxide‐Based All‐Magnesium Salt Electrolyte

Jianhua Xiao, Xinxin Zhang, Haiyan Fan, Yuxing Zhao, more

Advanced Materials > 34 > 30 > n/a - n/a

Passivation of the Mg anode surface in conventional electrolytes constitutes a critical issue for practical Mg batteries. In this work, a perfluorinated tert‐butoxide magnesium salt, Mg(pftb)₂, is codissolved with MgCl₂ in tetrahydrofuran (THF) to form an all‐magnesium salt electrolyte. Raman spectroscopy and density function theory calculation confirm that [Mg₂Cl₃·6THF]⁺[Mg(pftb)₃]⁻ is the main electrochemically...

article

Charge‐Compensation in a Displacement Mg²⁺ Storage Cathode through Polyselenide‐Mediated Anion Redox

Xuelian Qu, Aobing Du, Tao Wang, Qingyu Kong, more

Angewandte Chemie International Edition > 61 > 29 > n/a - n/a

Chalcogenides have been viewed as important conversion‐type Mg²⁺‐storage cathodes to fulfill the high volumetric energy density promise of magnesium (Mg) batteries. However, the low initial Columbic efficiency and the rapid capacity degradation remain challenges for the chalcogenide cathodes, as the clear Mg²⁺‐storage mechanism has yet to be clarified. Herein, we illustrate that the charge storage...

article

Charge‐Compensation in a Displacement Mg²⁺ Storage Cathode through Polyselenide‐Mediated Anion Redox

Xuelian Qu, Aobing Du, Tao Wang, Qingyu Kong, more

Angewandte Chemie > 134 > 29 > n/a - n/a

Chalcogenides have been viewed as important conversion‐type Mg²⁺‐storage cathodes to fulfill the high volumetric energy density promise of magnesium (Mg) batteries. However, the low initial Columbic efficiency and the rapid capacity degradation remain challenges for the chalcogenide cathodes, as the clear Mg²⁺‐storage mechanism has yet to be clarified. Herein, we illustrate that the charge storage...

article

Ion Conductive Behavior of Oligoether/Zwitterion Diblock Copolymers Containing Magnesium Salt

Masahiro Yoshizawa‐Fujita, Ryoma Ota, Jun Ishii, Yuko Takeoka, more

Macromolecular Chemistry and Physics > 223 > 8 > n/a - n/a

Rechargeable magnesium (Mg) batteries are envisioned as next generation batteries. The development of solid polymer electrolytes with high ionic conductivity will contribute to realize not only high performance Mg batteries but also reliable and safe devices. In this study, diblock copolymers (PPEGMA_m‐b‐SPB_n) with oligoether (PEGMA) and zwitterionic (SPB) side‐chains are synthesized in order to develop...

article

Synchrotron X‐ray Spectroscopic Investigations of In‐Situ‐Formed Alloy Anodes for Magnesium Batteries

Xin Xu, Chao Ye, Dongliang Chao, Biao Chen, more

Advanced Materials > 34 > 8 > n/a - n/a

Magnesium batteries present high volumetric energy density and dendrite‐free deposition of Mg, drawing wide attention in energy‐storage devices. However, their further development remains stagnated due to relevant interfacial issues between the Mg anode and the electrolyte and sluggish solid‐state diffusion kinetics of Mg²⁺ ions. Herein, an in situ conversion chemistry to construct a nanostructured...

article

Magnesium Deintercalation From the Spinel‐Type MgMn_2‐yFe_yO₄ (0.4≤y≤2.0) by Acid‐Treatment and Electrochemistry

Alejandro Medina, Ana I. Rodríguez, Carlos Pérez‐Vicente, Ricardo Alcántara

Chemistry – A European Journal > 27 > 49 > 12599 - 12609

Rechargeable magnesium batteries attract lots of attention because of their high safety and low cost compared to lithium batteries, and it is needed to develop more efficient electrode materials. Although MgMn₂O₄ is a promising material for the positive electrode in Mg rechargeable batteries, it usually exhibits poor cyclability. To improve the electrochemical behavior, we have prepared nanoparticles...

article

Uniform Magnesium Electrodeposition via Synergistic Coupling of Current Homogenization, Geometric Confinement, and Chemisorption Effect

Zihao Song, Zhonghua Zhang, Aobing Du, Shanmu Dong, more

Advanced Materials > 33 > 26 > n/a - n/a

Unevenly distributed magnesium (Mg) electrodeposits have emerged as a major obstacle for Mg‐metal batteries. A comprehensive design matrix is reported for 3D magnesiophilic hosts, which regulate the uniform Mg electrodeposition through a synergistic coupling of homogenizing current distribution, geometric confinement, and chemisorptive interaction. Vertically aligned nitrogen‐ and oxygen‐doped carbon...

article

Highly Reversible Cuprous Mediated Cathode Chemistry for Magnesium Batteries

Xiangyang Cheng, Zhonghua Zhang, Qingyu Kong, Qinghua Zhang, more

Angewandte Chemie International Edition > 59 > 28 > 11477 - 11482

Sluggish kinetics and poor reversibility of cathode chemistry is the major challenge for magnesium batteries to achieve high volumetric capacity. Introduction of the cuprous ion (Cu⁺) as a charge carrier can decouple the magnesiation related energy storage from the cathode electrochemistry. Cu⁺ is generated from a fast equilibrium between copper selenide electrode and Mg electrolyte during standing...

article

Highly Reversible Cuprous Mediated Cathode Chemistry for Magnesium Batteries

Xiangyang Cheng, Zhonghua Zhang, Qingyu Kong, Qinghua Zhang, more

Angewandte Chemie > 132 > 28 > 11574 - 11579

Sluggish kinetics and poor reversibility of cathode chemistry is the major challenge for magnesium batteries to achieve high volumetric capacity. Introduction of the cuprous ion (Cu⁺) as a charge carrier can decouple the magnesiation related energy storage from the cathode electrochemistry. Cu⁺ is generated from a fast equilibrium between copper selenide electrode and Mg electrolyte during standing...

article

High‐Energy Interlayer‐Expanded Copper Sulfide Cathode Material in Non‐Corrosive Electrolyte for Rechargeable Magnesium Batteries

Yinlin Shen, Yujia Wang, Yingchun Miao, Meng Yang, more

Advanced Materials > 32 > 4 > n/a - n/a

Rechargeable magnesium batteries (RMB) have been regarded as an alternative to lithium‐based batteries because of their abundant elemental resource, high theoretical volumetric capacity, and multi‐electron redox reaction without the dendrite formation of magnesium metal anode. However, their development is impeded by their poor electrode/electrolyte compatibility and the strong Coulombic effect of...

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Search results

Unlocking Four‐electron Conversion in Tellurium Cathodes for Advanced Magnesium‐based Dual‐ion Batteries

Unlocking Four‐electron Conversion in Tellurium Cathodes for Advanced Magnesium‐based Dual‐ion Batteries

Accessing Mg‐Ion Storage in V₂PS₁₀ via Combined Cationic‐Anionic Redox with Selective Bond Cleavage

Accessing Mg‐Ion Storage in V₂PS₁₀ via Combined Cationic‐Anionic Redox with Selective Bond Cleavage

Polysulfides in Magnesium‐Sulfur Batteries

Magnesium‐Ion Battery Anode from Polymer‐Derived SiOC Nanobeads

A Low‐Cost and Recyclable Mg/SOCl₂ Primary Battery Via Synergistic Solvation and Kinetics Regulation

Organic Electrolyte Design for Rechargeable Batteries: From Lithium to Magnesium

Organic Electrolyte Design for Rechargeable Batteries: From Lithium to Magnesium

Electrolyte and Interphase Design for Magnesium Anode: Major Challenges and Perspectives

Stable Solid Electrolyte Interphase In Situ Formed on Magnesium‐Metal Anode by using a Perfluorinated Alkoxide‐Based All‐Magnesium Salt Electrolyte

Charge‐Compensation in a Displacement Mg²⁺ Storage Cathode through Polyselenide‐Mediated Anion Redox

Charge‐Compensation in a Displacement Mg²⁺ Storage Cathode through Polyselenide‐Mediated Anion Redox

Ion Conductive Behavior of Oligoether/Zwitterion Diblock Copolymers Containing Magnesium Salt

Synchrotron X‐ray Spectroscopic Investigations of In‐Situ‐Formed Alloy Anodes for Magnesium Batteries

Magnesium Deintercalation From the Spinel‐Type MgMn_2‐yFe_yO₄ (0.4≤y≤2.0) by Acid‐Treatment and Electrochemistry

Uniform Magnesium Electrodeposition via Synergistic Coupling of Current Homogenization, Geometric Confinement, and Chemisorption Effect

Highly Reversible Cuprous Mediated Cathode Chemistry for Magnesium Batteries

Highly Reversible Cuprous Mediated Cathode Chemistry for Magnesium Batteries

High‐Energy Interlayer‐Expanded Copper Sulfide Cathode Material in Non‐Corrosive Electrolyte for Rechargeable Magnesium Batteries

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