Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Electrochemical Performance of Spherical LiCoO2 Powders Synthesized Using Ultrasonic Spray Pyrolysis Method (I) : Effect of Pyrolysis Conditions on Powder Characteristics

  • Published : 2004.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

Process Parameters were studied in synthesis of LiCoO$_2$ Powder by ultrasonic spray Pyrolysis. Concentration of the mixed solution influenced the size, shape, and yield of the synthesized powder. The yield was affected primarily by the height of the solution, and then by the flow rate of a carrier gas. The temperature of the reactor governed the crystallinity and morphology of the powder. LiCoO$_2$ powders were synthesized as a layered high temperature phase above 800$^{\circ}C$. The synthesized powders were sphere and secondary Particles consisted of primary particles of 55-70 nm. The secondary Particles became bigger from 0.28 to 1.43 $\mu\textrm{m}$ as the concentration of the solution was increased from 0.05 to 2.0 M. The 2.0 M solution provided the highest production rate.

Keywords

References

  1. G. L. Messing, S.-C. Zhang, and G. V. Jayanthi, 'Ceramic Powder Synthesis by Spray pyrolysis,' J. Am. Ceram. Soc., 76 [11] 2707-26 (1993) https://doi.org/10.1111/j.1151-2916.1993.tb04007.x
  2. K. Eguchi, T. Hatagishi, and H. Arai, 'Power Generation and Steam Electrolysis Characteristics of an Electrochemical Cell with a Zirconia-or Ceria-Based Electrolyte,' Solid State Ionics, 86-88 1245-49 (1996) https://doi.org/10.1016/0167-2738(96)00295-0
  3. S. C. Lee, H. F. Lin, C. Y. Tung, H. M. Lin, and S. L. Hsu, 'Molecular Simulation of the Properties of Gas Absorption on the Surface of Nanocrystalline Ti$O_2$,' Nanostruct. Mater., 9 697-700 (1997) https://doi.org/10.1016/S0965-9773(97)00154-2
  4. O. B. Milosevic, M. J. Mirkovic, and D. P. Uskokovic, 'Characteristics and Formation Mechanism of BaTi$O_3$ Powders Preparation by Twin-Fluid and Ultrasonic Spray-Pyrolysis Methods,' J. Am. Ceram. Soc., 79 1720-22 (1996) https://doi.org/10.1111/j.1151-2916.1996.tb08794.x
  5. S. C. Tsai, P. Childs, and P. Luu, 'Ultrasound-Modulated Two-Fluid Atomization of a Water Jet,' AIChE J., 42 3340-50 (1996) https://doi.org/10.1002/aic.690421206
  6. S. C. Tsai, P. Luu, P. Childs, A. Teshome, and C. S. Tsai, 'The Role of Capillary Waves in Two-Fluid Atomization,' Phys. of Fluids, 9 [10] 2909-18 (1997) https://doi.org/10.1063/1.869403
  7. Y. H. Choa, J. K. Yang, W. J. Yang, and K. H. Auh, 'Synthesis and Characterization of Isolated Iron Oxide Nanoparticle Dispersed in MgO Matrix,' J. Magn. Magn. Mater., 266 20-7 (2003) https://doi.org/10.1016/S0304-8853(03)00451-7
  8. R. J. Lang, 'Ultrasonic Atomization of Liquids,' J. Acoustic Soc. of Am., 34 [1] 6-8 (1962) https://doi.org/10.1121/1.1909020
  9. S. C. Tsai, Y. L. Song, C. S. Tsai, C. C. Yang, W. Y. Chiu, and H. M. Lin, 'Ultrasonic Spray pyrolysis for Nanoparticles Synthesis,' J. Mater. Sci., 266 [39] 3647-57 (2004)
  10. E. Rossen, J. N. Reimers, and J. R. Dahn, 'Synthesis and Electrochemistry of Spinel LT-LiCo$O_2$,' Solid State Ionics, 62 53-60 (1993) https://doi.org/10.1016/0167-2738(93)90251-W
  11. S. G. Kang, S. Y. Kang, K. S. Rhy, and S. H. Chang, 'Electrochemical and Structural Properties of HT-LiCo$O_2$ and LT-LiCo$O_2$ Prepared by the Sol-Gel Method,' Solid State Ionics. 120 155-61 (1999) https://doi.org/10.1016/S0167-2738(98)00559-1

Cited by

  1. Microstructure and Electrochemical Properties of Post Heat-Treated Li(Ni1/3Co1/3Mn1/3)O2 Cathode Materials for Lithium Ion Battery vol.510-511, pp.1662-9752, 2006, https://doi.org/10.4028/www.scientific.net/MSF.510-511.1102