Back to Search
Start Over
MgO coated P2-Na0.67Mn0.75Ni0.25O2 layered oxide cathode for Na-Ion batteries
- Source :
- Journal of Power Sources Advances, Vol 25, Iss , Pp 100135- (2024)
- Publication Year :
- 2024
- Publisher :
- Elsevier, 2024.
-
Abstract
- In this study, we propose an effective strategy to improve the electrochemical performance of a P2-Na0.67Mn0.75Ni0.25O2 (P2-MNO) cathode material for Na-ion batteries based on MgO surface coating. The MgO coating, with a thickness of ∼20–50 nm, is obtained by means of a facile wet-chemistry approach followed by heat treatment carried out at comparatively low temperatures (400–500 °C) in order to avoid possible Mg doping in the bulk of the P2-MNO. Detailed electrochemical investigations demonstrate improved electrochemical performance of the MgO-coated material (M-P2-MNO) in comparison to pristine bare one at both room and elevated (40 °C) temperatures. Operando differential electrochemical mass spectroscopy (DEMS) demonstrate that the MgO coating is effective in suppressing unwanted gas evolution due to side reactions thus stabilizing the cathode/electrolyte interface.
Details
- Language :
- English
- ISSN :
- 26662485
- Volume :
- 25
- Issue :
- 100135-
- Database :
- Directory of Open Access Journals
- Journal :
- Journal of Power Sources Advances
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.78cce47a2e244aa7b25c599feb385caf
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.powera.2024.100135