Structure Engineering on Prussian Blue Analog Anode Toward Rapid Na‐Ion Storage

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

Published: Dec. 31, 2024

Abstract Developing high‐rate electrode materials is a critical enabler of fast‐charging Na‐ion battery (NIB). Prussian blue analog (PBA) with rapid charge transfer channels has shown significant potential as NIB cathodes; however, the capability reported PBA‐based anodes remains limited. This challenge primarily stems from complete transformation their original crystal structures during synthesis processes, resulting in loss inherent channels. Herein, Ni‐Fe based PBA (Ni 3 [Fe(CN) 6 ] 2 ) representative structure presented prototype to investigate its anode, and structural modification strategies are implemented unlock storage. First, conversion reaction mechanism demonstrated Ni sodiation, theoretical specific capacity 357.2 mAh g −1 . However, reversible capacities after long‐term cycling at high rates low. To address these issues, optimization including S incorporation, configurational entropy modulation, coordination environment regulation utilized. Consequently, (≈40 s per 245.0 input) excellent capabilities realized. study demonstrates feasibility anodes, promotes further investigation into aimed developing other electrodes.

Language: Английский

Current trends and future directions in Si-based MXene composites for enhanced lithium-ion battery applications: a comperehensive review

Composite Interfaces, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 36

Published: July 1, 2024

Language: Английский