The Out‐of‐Plane C─S Bonds Boosting Reversible Redox in Copper Sulfide Cathodes for Ultradurable Magnesium Battery DOI Open Access
Qin Su, Weixiao Wang, Jiajun Chen

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 21, 2024

Abstract As a typical conversion‐type cathode material, CuS has shown great potential in the field of rechargeable magnesium batteries (RMBs) due to its excellent energy density, stable voltage platforms, and low cost. However, poor phase conversion reversibility cathodes resulted Coulombic efficiency short cycling life, impeding further development. Herein, an abundance CS heterointerfaces is meticulously crafted by nanoparticles anchored on rGO nanosheets (CuS@G). The out‐of‐plane C─S bonds effectively reduce activation sulfur atoms within Cu‐S tetrahedrons, facilitating formation S─S Cu₂S crystal structure driving reversible between during charge/discharge process. Furthermore, more could diminish copper ion dissolution induced volume expansion. Consequently, CuS@G exhibits one most remarkable rate performances date (160.5 mAh g −1 at 1 A ), retaining 64.7% capacity after 1000 cycles. Additionally, durable CuS@G||Mg pouch cell successfully assembled, delivering high 9.5 mAh. These fundamental insights provide valuable guidance for design high‐performance materials next‐generation RMBs.

Language: Английский

The mystic role of high-entropy designs in rechargeable metal-ion batteries: A review DOI
Yi‐Cheng Lin, Shaohua Luo, Wei Zhao

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 98, P. 441 - 471

Published: July 4, 2024

Language: Английский

Citations

14
Dendritic Magnesium Formation in Conventional Electrolytes: Local Adsorption of Amine Solvents at Inner Helmholtz Plane Matters DOI Open Access
Chunqiu Li, Wenhao Sun, Hang Zhou

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Abstract Simple salts electrolyte is imperative for developing commercially feasible rechargeable magnesium (Mg) metal batteries. However, Mg electro‐plating/stripping reversibility in these electrolytes far from satisfactory, which mainly caused by interfacial passivation and dendrite growth of Mg‐metal anode. Therefore, it great urgent to develop a molecule‐level mechanistic understanding on electrode–electrolyte reactions. In this work, the transformation pathways solvents at inner Helmholtz plane are revealed play key role deterioration cell failure anodes. A benzylamine co‐solvent introduced into simple electrolyte, closely related gas evolution, MgH 2 formation possible electrochemical active species surface The uneven adsorption leads multiplicative effect local current density, causes growth. Interestingly, demonstrated do not directly participate first 2+ solvation sheath structures, instead they exhibit specific attributed significant steric hindrance. As result, visual bottle‐type asymmetric cells display fair cycle life above 500 cycles, while coin‐type assembly exhibits serious soft short circuit recovery behavior during cycling.

Language: Английский

Citations

0
Bifunctional Synergistic Mg@SnSb SEI for Low Interfacial Reaction Energy Barriers and Stable Cycling of High‐Performance Rechargeable Magnesium Batteries DOI Open Access
Xianhao Peng, Yuan Yuan, Dachong Gu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Abstract The formation of a stable passivation layer and the strong electrostatic interactions impede diffusion magnesium ions (Mg 2+ ) at Mg anode surface. Construction an artificial solid electrolyte interphase (SEI) presents promising approach to overcome these limitations. This study develops synergistic structurally Mg@SnSb SEI through in situ reaction between Tin trifluoromethanesulfonate antimony chloride (Sn(OTf) 2 ‐SbCl 3 ‐based) electrolyte, featuring low LUMO (lowest unoccupied molecular orbital). formed multi‐phase effectively reduces interfacial barriers facilitates during both plating stripping processes. Additionally, nano‐grained microstructure enhances uniformity plating/stripping suppresses decomposition OTf anions DME solvent molecules. incorporating exhibits exceptionally overpotential less than 0.07 V ultra‐long cycle life exceeding 1500 h. In full‐cell tests using Mg@SnSb||Mo 6 S 8 , system achieved exceptional electrochemical performance, maintaining over 94% its initial capacity after more 400 cycles.

Language: Английский

Citations

0
Critical Ingredients Revitalize Magnesium‐Metal Batteries: Rationality and Challenges DOI Open Access
Jinlei Zhang, Zhonghua Zhang, Hang Zhou

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Multivalent-metal batteries hold tremendous promise in solving safety and sustainability problems encountered by common lithium-ion batteries, but the lack of ideal electrolyte solutions restricts their large-scale adoption. Tuning structures with functional ingredients, especially amines/methoxy-based amines phosphates, can revitalize multivalent-metal anodes high-voltage cathodes conventional electrolytes, unlocking full potential. However, a rational clear understanding implications these notwithstanding critically important to commercially available design, has not been widely accepted. This concise perspective aims provide timely analysis discussion on ingredients' functionalities solvation shell speciation, interphase evolution, consequently metal plating/stripping kinetics acceleration. In addition prevailing coordination interactions, fresh understandings intermolecular ionization/association unique formation are underscored close relationship between chemistries weakly passivated properties. The existing proposed outlooks expected promote next breakthroughs for rechargeable batteries.

Language: Английский

Citations

0
Synthesis of MgCl+ and Mg2+ Cation Based Novel Electrolytes: Impact of Polydentate Ethers DOI Creative Commons
Yogendra Kumar, Ben Dlugatch, Ananya Maddegalla

et al.

ChemElectroChem, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Abstract The development of efficient electrolytes is crucial for advancing magnesium (Mg) batteries, which hold promise next‐generation energy storage systems. Previously, such as [Mg 2 (μ‐Cl) 3 ⋅ 6THF] + [Ph 4 Al] − , A, and AlCl] B have been studied, but their performance has limited by issues related to ion dissociation electrochemical stability. In this study, we report the synthesis novel introducing polydentate ligands these known systems, leading formation [DME MgCl 3THF] 1 [DG 2THF] 3DME] 2+ 2[Ph AlCl ] 2DG] . These firstly discovered compounds were thoroughly characterized using X‐ray crystallography NMR spectroscopy. Our findings reveal that choice counter anion plays a pivotal role in products mechanism bridged cation upon addition ligands. Specifically, with (precursor A ), results [MgCl] mono‐cation, while [Mg] divalent formed. resultant byproduct enhances solubility, expands windows, improves cyclic stability, superior new ( ) compared original precursors. insights offer valuable guidelines design advanced rechargeable potentially paving way more stable solutions.

Language: Английский

Citations

0
Research progress and perspectives on rechargeable batteries DOI
Guang Yang,

Zhimeng Hao,

Chun Fang

et al.

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 111185 - 111185

Published: April 1, 2025

Language: Английский

Citations

0
Low‐Concentration Electrolyte Engineering for Rechargeable Batteries DOI
Zijun Wang, Xiaolin Guo,

Yueyao Dong

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract Low‐concentration electrolytes (LCEs) present significant potential for actual applications because of their cost‐effectiveness, low viscosity, reduced side reactions, and wide‐temperature electrochemical stability. However, current electrolyte research predominantly focuses on regulation strategies conventional 1 m electrolytes, high‐concentration localized leaving design principles, optimization methods, prospects LCEs inadequately summarized. face unique challenges that cannot be addressed by the existing theories approaches applicable to three common mentioned above; thus, tailored provide development guidance are urgently needed. Herein, a systematic overview recent progress in is provided subsequent directions suggested. This review proposes core challenge high solvent ratio LCEs, which triggers unstable organic‐enriched electrolyte/electrode interface formation anion depletion near anode. On basis these issues, modification including passivation construction solvent‒anion interaction optimization, used various rechargeable battery systems. Finally, role advanced simulations cutting‐edge characterization techniques revealing LCE failure mechanisms further highlighted, offering new perspectives future practical application next‐generation batteries.

Language: Английский

Citations

0
Magnesium 4, 5, and 6 coordinate complexes with ligands bound via sp or sp2 hybridized atoms DOI Creative Commons

Annabel Rae,

Alan R. Kennedy, Stuart D. Robertson

et al.

Polyhedron, Journal Year: 2024, Volume and Issue: unknown, P. 117257 - 117257

Published: Oct. 1, 2024

Language: Английский

Citations

0
The Out‐of‐Plane C─S Bonds Boosting Reversible Redox in Copper Sulfide Cathodes for Ultradurable Magnesium Battery DOI Open Access
Qin Su, Weixiao Wang, Jiajun Chen

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 21, 2024

Abstract As a typical conversion‐type cathode material, CuS has shown great potential in the field of rechargeable magnesium batteries (RMBs) due to its excellent energy density, stable voltage platforms, and low cost. However, poor phase conversion reversibility cathodes resulted Coulombic efficiency short cycling life, impeding further development. Herein, an abundance CS heterointerfaces is meticulously crafted by nanoparticles anchored on rGO nanosheets (CuS@G). The out‐of‐plane C─S bonds effectively reduce activation sulfur atoms within Cu‐S tetrahedrons, facilitating formation S─S Cu₂S crystal structure driving reversible between during charge/discharge process. Furthermore, more could diminish copper ion dissolution induced volume expansion. Consequently, CuS@G exhibits one most remarkable rate performances date (160.5 mAh g −1 at 1 A ), retaining 64.7% capacity after 1000 cycles. Additionally, durable CuS@G||Mg pouch cell successfully assembled, delivering high 9.5 mAh. These fundamental insights provide valuable guidance for design high‐performance materials next‐generation RMBs.

Language: Английский

Citations

0