Fast Production of High Performance LiNi<sub>0.815</sub>Co<sub>0.15</sub>Al<sub>0.035</sub>O<sub>2</sub> Cathode Material via Urea-Assisted Flame Spray Pyrolysis
oleh: Cornelius Satria Yudha, Soraya Ulfa Muzayanha, Mintarsih Rahmawati, Hendri Widiyandari, Wahyudi Sutopo, Muhammad Nizam, Sigit Puji Santosa, Agus Purwanto
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2020-06-01 |
Deskripsi
The high throughput and rapid flame-assisted spray pyrolysis method has been adapted to synthesize cathode materials LiNi<sub>0.ap</sub>Co<sub>0.15</sub>Al<sub>0.035</sub>O<sub>2</sub> (NCA). This method is considered low cost and simple. By varying the precursor solution concentration and sintering temperature, the optimal condition was established at temperature sintering of 800 °C and precursor solution concentration of 1 M. X-ray diffraction patterns showed the as-prepared NCA particles exhibit a pure well-ordered hexagonal layer structure with high crystallinity. Polyhedral shaped micro-sized particles are confirmed by SEM images. Galvanostic charge–discharge tests were conducted using cylindrical full-cell utilizing artificial graphite as the anode. The highest specific initial discharge capacity measured between 2.7 and 4.3 V is 155 mAh g<sup>−1</sup> with capacity retention of 92% after cycled at 0.2 C for 50 cycles. Thus, this method is considered as a satisfying approach for NCA mass production.