TY  - JOUR
AU  - An, Siyu
AU  - Karger, Leonhard
AU  - Müller, Philipp
AU  - Lin, Jing
AU  - Vasala, Sami
AU  - Baran, Volodymyr
AU  - Dreyer, Sören L.
AU  - Zhang, Ruizhuo
AU  - Ulusoy, Fatih
AU  - Kondrakov, Aleksandr
AU  - Janek, Juergen
AU  - Brezesinski, Torsten
TI  - Exploring calcium pillaring of O3-type NaNi<sub>0.9</sub>Ti<sub>0.1</sub>O<sub>2</sub> cathodes to advance Na-ion battery technology
JO  - The chemical engineering journal
VL  - 509
SN  - 1385-8947
CY  - Amsterdam
PB  - Elsevier
M1  - PUBDB-2025-02386
SP  - 160939
PY  - 2025
N1  - ISSN 1385-8947 not unique: **2 hits**.
AB  - NaNi<sub>0.9</sub>Ti<sub>0.1</sub>O<sub>2</sub> (NNTO), a promising sodium-ion cathode material, is capable of delivering high specific capacities but is compromised by structural degradation at high potentials and poor redox stability. Herein, we introduced varying amounts of Ca<sup>2+</sup> as pillaring ions into the intercalation sites of NNTO to examine their effect on structure and electrochemical performance. Laboratory X-ray diffraction and charge/discharge testing identified Na<sub>0.95</sub>Ca<sub>0.025</sub>Ni<sub>0.9</sub>Ti<sub>0.1</sub>O<sub>2</sub> (CaNNTO) as the optimal composition in terms of interlayer spacing, rate capability, and cycling stability. Specifically, the capacity retention after 200 cycles improved from 27 to 48 
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1016/j.cej.2025.160939
UR  - https://bib-pubdb1.desy.de/record/633260
ER  -