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Unlocking the electrochemistry abilities of nanoscaled Na2/3Ni1/4Mn3/4O2 thin films.
- Source :
-
Electrochimica Acta . Oct2016, Vol. 215, p550-555. 6p. - Publication Year :
- 2016
-
Abstract
- Different thickness of Na 2/3 Ni 1/4 Mn 3/4 O 2 thin films were deposited on stainless steel substrates by pulsed laser deposition technique. X-ray diffraction and field-emission scanning electron microscope results reveal that the thin film with highly preferred c-axis orientation is composed of homogeneous nano-sized grains. The charge/discharge tests indicate that the 0.55 μm thick film demonstrates a high initial discharge capacity of 175.3 mAhg −1 and a retention of 91% after 30 cycles at a current density of 13 mAg −1 . Furthermore, as the current density increases from 13 to 130 mAg −1 , about 89% of its initial discharge capacity can be maintained, exhibiting excellent rate capability. These superior electrochemical properties would promote Na 2/3 Ni 1/4 Mn 3/4 O 2 thin film to be a promising cathode material for sodium-ion micro-batteries. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 215
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 118180349
- Full Text :
- https://doi.org/10.1016/j.electacta.2016.08.029