TY  - JOUR
AU  - Patra, Biplab
AU  - Narayanan, Swathy
AU  - Halder, Suraj
AU  - Sharma, Mayank
AU  - Sachdeva, Dorothy
AU  - Ravishankar, Narayanan
AU  - Pati, Swapan K.
AU  - Jain, Sheetal K.
AU  - Senguttuvan, Premkumar
TI  - 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
JO  - Advanced materials
VL  - 37
IS  - 24
SN  - 0935-9648
CY  - Weinheim
PB  - Wiley-VCH
M1  - PUBDB-2025-03938
SP  - 2419417
PY  - 2025
N1  - Waiting for fulltext 
AB  - 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
LB  - PUB:(DE-HGF)16
C6  - pmid:40195626
DO  - DOI:10.1002/adma.202419417
UR  - https://bib-pubdb1.desy.de/record/637948
ER  -