Cu+ redox activation and polyselenide stabilization via strong Se-C interaction for superior magnesium storage

Strategy for enhancement of magnesium ion diffusion in a vanadium tetra sulfide-layered structure for rechargeable magnesium batteries

“…Most of these materials were reported by our group. 20,22,24,52–56 From this comparison, it can be clearly observed that any type of morphological manipulation that leads to the enhanced diffusivity of magnesium ions, can give promising results for higher energy density RMBS. Therefore, this emphasized that enhanced diffusion of magnesium ions for efficient RMBS was well achieved in this work.…”

“…metallic composites, heterostructure, nanoarchitecture fabrication, carbon nanocage formation, pre-intercalation, porosity based morphological designing, and doping. 10,15–22 Among these, morphological manipulations and expanded layer techniques stand out with respect to improving the cathodic performance of layered structured materials. Liu et al reported morphological manipulation using ammonium ions while synthesizing VS 4 for Na + ion batteries and achieved high performance with structural stability.…”

Lithiophilic and Eco-Friendly Nano-Se Seeds Unlock Dendrite-Free and Anode-Free Li-Metal Batteries

“…40,41 The strong Se−C interaction between Se particles and graphene substrate enables the firm immobilization of Se species on CC and boosts the electrochemical reactions. 42 From the reasoning above, it is logical that both elemental Se and Se dopants (i.e., Se−C complex) exist in Se@CC materials.…”

Mo3S13 Cluster-Based Cathodes for Rechargeable Magnesium Batteries: Reversible Magnesium Association/Dissociation at the Bridging Disulfur along with Sulfur–Sulfur Bond Break/Formation

“…(b) Charge/discharge curves and the (c, d) cycling performance of (NH 4 ) 2 Mo 3 S 13 and MoS x . (e) Rate performances of (NH 4 ) 2 Mo 3 S 13 and MoS x and (f) comparison with advanced RMB cathodes. ,− , (g) Comparison of active material loading and rate performance with advanced RMB cathodes. (h) Cycling stabilities of (NH 4 ) 2 Mo 3 S 13 and MoS x at 2.0 A g –1 .…”

“…In sharp contrast to the success of Mg electrolytes, the development of Mg-storage cathodes is currently experiencing a tough path. , The biggest difficulty in essence originates from the bivalence, small radius, and thus high ionic potential of the Mg 2+ cation . A strong interaction would occur between the Mg 2+ cation and the negatively charged regions of the Mg-storage cathodes due to the bivalence. , This affects both of the Mg 2+ dissociation during the charge process and solid-phase Mg 2+ diffusion, leading to poor Mg-storage reaction reversibility in thermodynamics and slow Mg 2+ diffusion in kinetics. − Actually, this difficulty exists as one of the major issues in electrode materials of most multivalent ion batteries. Therefore, efficient strategies in the high-performance cathode materials design would not only break the bottleneck of RMBs development but also provide inspiration for other multivalent ion batteries.…”