Boosting Zinc‐Ion Storage Capability in Longitudinally Aligned MXene Arrays with Microchannel Architecture

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

Published: Sept. 10, 2024

Abstract Flexible Zn 2+ ion hybrid capacitors (ZHCs) will play a crucial role in developing next‐generation wearable products, which demand portability, durability, and environmental adaptability. To further meet these requirements, Ti 3 C 2 T x MXene with exceptional conductivity robust mechanical properties can be utilized as cathodes, except for challenges such the dense stacking of nanosheets. In this study, novel cathode architecture has been developed facilitation an ice template, creates longitudinally aligned arrays microchannels. The introduction hydrochloric acid to slurry induces crumpled morphology, increasing active sites enhancing transport expanded interlayer spacing. Interestingly, experimental results COMSOL simulations verify that structure also effective impacts on anode weakened concentration gradient suppressed dendrite formation. Consequently, ZHCs exhibit enhanced electrochemical performance excellent rate long‐term cycling stability (enduring over 50 000 cycles at 5 A g −1 ) deliver reliable low‐temperature operation by applying anti‐freezing electrolyte. Moreover, flexible assembled gel electrolytes demonstrate flexibility, improved performance, stability, making them well‐suited electronics power LED panels.

Language: Английский

Advancements in Zinc Reversibility and Utilization for Practical Aqueous Zinc‐Ion Battery Applications

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

Published: April 22, 2025

Abstract Aqueous zinc‐ion batteries (AZIBs) have become critical in driving the advancement of large‐scale energy storage systems due to their high specific capacity, safety, environmental friendliness, and low cost. However, fundamental challenges associated with Zn anodes, including dendrite growth, hydrogen evolution reaction, corrosion, zinc utilization, significantly hinder improvement cyclic stability density AZIBs. In light these challenges, considerable efforts been devoted exploring stable while a significant gap persists between current research advancements practical working conditions. Therefore, this review first reveals detailed mechanisms formation, as well influence utilization on AZIB systems. addition, recent various modification strategies for improving anodes are summarized, corresponding investigated. Finally, key factors advancing development application AZIBs clarified, goal bridging status future demands.

Language: Английский