Aluminum doping of the P2-type layered structure results in a Na-ion cathode material (Na0.6Ni0.22Al0.11Mn0.66O2) with excellent performance. The material, in fact, exhibits outstanding specific capacities, 250 mA h g-1 and 150 mA h g-1 at 0.1 and 5C rate, respectively, which have never been reported before. Herein, a deep investigation of both the electrochemical behavior and the structural and morphological properties upon cycling reveals the beneficial effect of aluminum and the importance of a suitable metal intermixing selection for the obtainment of high performance cathode materials.
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Titolo: | Toward high energy density cathode materials for sodium-ion batteries: investigating the beneficial effect of aluminum doping on the P2-type structure |
Autori: | HASSOUN, Jusef (Corresponding) |
Data di pubblicazione: | 2017 |
Rivista: | |
Handle: | http://hdl.handle.net/11392/2369560 |
Appare nelle tipologie: | 03.1 Articolo su rivista |