Fast-Charging and Long-Cycle Sodium-Ion Batteries Enabled by an Ultra-Stable Carbon Anode
© 2025 Wiley‐VCH GmbH.
| Publié dans: | Advanced materials (Deerfield Beach, Fla.). - 1998. - (2025) vom: 03. Sept., Seite e09953 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2025
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| Accès à la collection: | Advanced materials (Deerfield Beach, Fla.) |
| Sujets: | Journal Article carbon anode fast charging interface engineering long‐cycle stability sodium ion battery |
| Résumé: | © 2025 Wiley‐VCH GmbH. The realization of rapid-charging sodium-ion batteries (SIBs) with exceptional power density represents a pivotal challenge for next-generation electric vehicles. Currently, carbonaceous anodes are considered the most technologically mature yet rate-limited candidate approaching commercialization. To address the bottlenecks of slow ion transport and interfacial instability in conventional carbon architectures, a hierarchical anode material has been designed by incorporating g-C3N4 electronic inert layer onto hollow carbon spheres (CNHCS). This structure not only facilitates Na⁺ diffusion but also effectively suppresses side reactions, while enabling selective screening of electrons. As a result, the material exhibits outstanding rate capabilities, maintaining high performance even at a current density as high as 40 A g-1, and demonstrates remarkable cycling stability over 40 000 cycles with negligible capacity decay. Consequently, the full battery enables rapid charging within 0.1 h and delivers a prolonged discharge duration of up to 1 h, accompanied by a high power density of 21 600 W kg-1 (cathode + anode). This work represents a significant advancement in the development of advance anode materials for SIBs |
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| Description: | Date Revised 03.09.2025 published: Print-Electronic Citation Status Publisher |
| ISSN: | 1521-4095 |
| DOI: | 10.1002/adma.202509953 |