%0 Journal Article
%A Patra, Biplab
%A Narayanan, Swathy
%A Halder, Suraj
%A Sharma, Mayank
%A Sachdeva, Dorothy
%A Ravishankar, Narayanan
%A Pati, Swapan K.
%A Jain, Sheetal K.
%A Senguttuvan, Premkumar
%T NASICON‐NaV<sub>0.25</sub>Al<sub>0.25</sub>Nb<sub>1.5</sub>(PO<sub>4</sub>)<sub>3</sub>/C: A High‐Rate and Robust Anode for Fast Charging and Long‐Life Sodium‐Ion Batteries
%J Advanced materials
%V 37
%N 24
%@ 0935-9648
%C Weinheim
%I Wiley-VCH
%M PUBDB-2025-03938
%P 2419417
%D 2025
%Z Waiting for fulltext 
%X Nb-based NAtrium Super Ionic CONductor (NASICON) frameworks (e.g., Nb2(PO4)3 and Na1.5V0.5Nb1.5(PO4)3) are emerging as the attractive Na-ion anodes due to their lower intercalation voltage (≈1.4–1.2 V vs Na+/Na0) and higher storage capacities (≈140–160 mAh g−1). However, their practical realization is limited by moderate cycle life and rate performances. In this work, a carbon-coated NASICON-NaV0.25Al0.25Nb1.5(PO4)3 (NaVAlNb/C) anode is unveiled for fast charging Na-ion batteries. The incorporation of Al3+ increases covalency of NASICON and creates disordered Na-ion sublattice as observed by X-ray diffraction and nuclear magnetic resonance spectroscopy measurements. Besides, the carbon-coating and particle downsizing produces facile electron and ion percolation network. Accordingly, the NaVAlNb/C anode renders extraordinary rate performances (80 mAh g−1 at 20C) with longer cycling stability (95.2
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:40195626
%R 10.1002/adma.202419417
%U https://bib-pubdb1.desy.de/record/637948