| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1489234 | Materials Research Bulletin | 2013 | 4 Pages |
•LiCoO2/LiNiO2 multi-layer thin film was successively deposited by sputtering.•The annealed films have the c-axis orientation.•The films present a uniform and smooth morphology.•The discharge capacity and capacity retention of the multi-layer thin film is definitely superior to that of the single-layer thin film.
LiCoO2 single-layer and LiCoO2/LiNiO2 multi-layer thin film electrodes were successfully fabricated by magnetron sputtering. Their microstructure and electrochemical properties were investigated. Once annealed, both films had the (0 0 3) preferred orientation to minimize the surface energy. The initial discharge capacity of the multi-layer thin film was approximately 53.1 μAh/cm2 μm, which was higher than that of the LiCoO2 single-layer thin film having similar thickness. The capacity retention of the multi-layer thin film was superior to that of the single-layer thin film. These findings indicate that the multi-layer thin film is a promising cathode material for the fabrication of high-performance thin film batteries.
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