1.
Chem Commun (Camb)
; 56(58): 8107-8110, 2020 Jul 21.
Article
in English
| MEDLINE
| ID: mdl-32555815
ABSTRACT
We experimentally and computationally investigated the Ca substitution effect on the electrochemical performance of P3-NaxCoO2. The cycle performance of Ca-substituted NaxCa0.04CoO2 was effectively improved due to its better crystallinity retention after charging. Our DFT calculations suggested that the presence of Ca2+ ions in Na sites kinetically mitigates phase transition.