Browse > Article
http://dx.doi.org/10.6111/JKCGCT.2014.24.3.094

Synthesis and characterization of LiCoO2 thin film by sol-gel process  

Roh, Tae-Ho (Department of Gem and Precious Metal, Dongshin University)
Yon, Seog-Joo (Department of Gem and Precious Metal, Dongshin University)
Ko, Tae-Seog (Department of Gem and Precious Metal, Dongshin University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.24, no.3, 2014 , pp. 94-98 More about this Journal
Abstract
$LiCoO_2$ thin film has received diverse attention as cathodes material of thin-film micro-batteries. In this study, $LiCoO_2$ thin films were synthesized on Au substrates by sol-gel spin coating method and an annealing process. Their structures were studied using X-ray diffraction and Raman Spectroscopy. The particle morphologies of these thin films were observed by Scaning electron microscope. From the results of X-ray diffractometry and Raman Spectroscopy analyses, it was found that as-grown films had the structure of spinel (LT-$LiCoO_2$) and layered-Rock-salt (HT-$LiCoO_2$) at $550^{\circ}C$ and $750^{\circ}C$ respectively. The annealed films at $650^{\circ}C$ were presumed to be the mixed state of these two types. Throlugh the scanning electron microscope, It was estimated that the particle size in as-grown films at $750^{\circ}C$, were larger crystilline particle than in those at the other lower temperature and well distributed in the film.
Keywords
Sol-gel; $LiCoO_2$; Synthesis of thin film;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Y.H. Rho, K. Kanamura, M. Fujisaki, J.I. Hamagami, S.I. Suda and T. Umegaki, "Preparation of $Li4Ti_5O_{12}$ and $LiCoO_2$ thin film electrodes from precursors obtained by sol-gel method", Solid State Ionics 151 (2002) 151.   DOI
2 G.T. Kim, S.H. Lee and B.O. Park, "Characterization and deposition of $Cu_2ZnSnS_4$ film for thin solar cells via sol-gel method", J. Korean Cryst. Growth Cryst. Technol. 22 (2012) 127.   과학기술학회마을   DOI   ScienceOn
3 E. Antolini, "$LiCoO_2$: formation, structure, lithium and oxygen nonstoichiometry, electrochemical behaviour and transport properties", Solid State Ionics 170 (2004) 159.   DOI   ScienceOn
4 S.G. Kang, S.Y. Kang, K.S. Ryu and S.H. Chang, "Electrochemical and structural properties of HT-$LiCoO_2$ and LT-$LiCoO_2$ prepared by the citrate sol-gel method", Solid State Ionics 120 (1999) 155.   DOI
5 K. Kushida and K. Kuriyama, "Optical absorption related to Co-3d bands in sol-gel grown $LiCoO_2$ films", Solid State Commum. 118 (2001) 615.   DOI
6 F.X. Hart and J.B. Bates, "Lattice model calculation of the strain energy density and other properties of crystalline $LiCoO_2$", J. Appl. Phys. 83 (1998) 7560.   DOI   ScienceOn
7 S. Megahed and B. Scrodati, "Lithium-ion rechargeable batteries", J. Power Sources 51 (1994) 79.   DOI   ScienceOn
8 A.K. Padhi, K.S. Nanjundaswamy and J.B. Goodenough, "Phospho-olivines as positive-electrode materials for rechargeable lithium batteries", J. Electrochem. Soc. 144 (1997) 1188.   DOI   ScienceOn
9 J.L. Souquet and M. Duclot, "Thin film lithium batteries", Solid State Ionics 148 (2002) 375.   DOI
10 C.L. Liao and K.Z. Fung, "Lithium cobalt oxide cathod film prepared by rf sputtering", J. Power Sources 128 (2004) 263.   DOI   ScienceOn
11 W.S. Kim, "Characteristics of $LiCoO_2$ thin film cathodes according to the annealing ambient for the postannealing process", J. Power Sources 134 (2004) 103.   DOI   ScienceOn
12 G.X. Wang, M.J. Lindsay, M. Ionescu, D.H. Bradhurst, S.X. Dou and H.K. Liu, "Physical and electrochemical characterization of $LiNi_{0.8}Co_{0.2}O_2$ thin-film electrodes deposited by laser ablation", J. Power Sources 97 (2001) 298.
13 B.Y. Kim, B.K. Shin, H.S. Lee and H.H. Chun, "Physico-chemical effects of cerium oxide on catalytic activity of $CeO_2-TiO_2$ prepared by sol-gel method for $NH_3$-SCR", J. Korean Cryst. Growth Cryst. Technol. 23 (2013) 320.   과학기술학회마을   DOI   ScienceOn
14 M.K. Kim, K.S. Park, D.S. Kim, J.T. Son and H.G. Kim, "Effects of drying temperature on the $LiCoO_2$ thin films fabricated by sol-gel method", J. Kor. Ceram. Society 38(9) (2001) 777.   과학기술학회마을
15 M.K. Kim, H.T. Chung, Y.J. Park, J.G. Kim, J.T. Son, K.S. Park and H.G. Kim, "Fabrication of $LiCoO_2$ thin films by sol-gel method and characterisation as positive electrodes for $Li/LiCoO_2$ cells", J. Power Sources 99 (2001) 34.   DOI
16 Y.I. Jang, N.J. Dudney, D.A. Blom and L.F. Allard, "Electrochemical microscopic characterization of thinfilm $LiCoO_2$ cathods under high-voltage cycling condition", J. Power Sources 119 (2003) 295.
17 M.K. Kim, K.S. Park, J.T. Son, J.G. Kim, H.T. Chung and H.G. Kim, "The electrochemical properties of thin-film $LiCoO_2$ cathode prepared by sol-gel process", Solid State Ionics 152 (2002) 267.