Heteroanionic Halogenated TiBT MBene Protective Layer With Dual-Functional Zincophilic and Hydrophobic Characteristics for Dendrite-Free Zinc Anode.

Two-dimensional (2D) hexagonal transition metal borides (h-MBenes), emerging members of 2D materials, demonstrate significant potential as protective layers for metal anodes. However, conventional MBenes synthesized by wet etching have massive oxygen-containing terminations imported during the chemical synthesis process, with zincophobic and hydrophilic, resulting in severe dendrite growth kinetics and compromising electrode performance. In this study, we report a novel hetero-halogen TiBT (T = Cl and I) h-MBenes through a halogen-radius-isomerization strategy, enabling precise mixed-halogen functionalization to create an ultrahigh zincophilic and hydrophobic microenvironment.

Recent Progress in the Applications of MXene-Based Materials in Multivalent Ion Batteries.

Multivalent-ion batteries have garnered significant attention as promising alternatives to traditional lithium-ion batteries due to their higher charge density and potential for sustainable energy storage solutions. Nevertheless, the slow diffusion of multivalent ions is the primary issue with electrode materials for multivalent-ion batteries. In this review, the suitability of MXene-based materials for multivalent-ion batteries applications is explored, focusing onions such as magnesium (Mg), aluminum (Al), zinc (Zn), and beyond.

Recent Advancements of Graphene-Based Materials for Zinc-Based Batteries: Beyond Lithium-Ion Batteries.

Graphene-based materials (GBMs) possess a unique set of properties including tunable interlayer channels, high specific surface area, and good electrical conductivity characteristics, making it a promising material of choice for making electrode in rechargeable batteries. Lithium-ion batteries (LIBs) currently dominate the commercial rechargeable battery market, but their further development has been hampered by limited lithium resources, high lithium costs, and organic electrolyte safety concerns. From the performance, safety, and cost aspects, zinc-based rechargeable batteries have become a promising alternative of rechargeable batteries.

Pearl-Structure-Enhanced NASICON Cathode toward Ultrastable Sodium-Ion Batteries.

Based on the favorable ionic conductivity and structural stability, sodium superionic conductor (NASICON) materials especially utilizing multivalent redox reaction of vanadium are one of the most promising cathodes in sodium-ion batteries (SIBs). To further boost their application in large-scale energy storage production, a rational strategy is to tailor vanadium with earth-abundant and cheap elements (such as Fe, Mn), reducing the cost and toxicity of vanadium-based NASICON materials. Here, the Na V Fe (PO ) (NVFP) is synthesized with highly conductive Ketjen Black (KB) by ball-milling assisted sol-gel method.