Preparation of Three Dimensionally Ordered Macroporous LiCoO2 Cathode for Lithium Batteries

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Macroporous LiCoO2 was prepared by a colloidal crystal templating method. Colloidal crystal consisting of monodisperse polystyrene particles was used as the template for the synthesis of macroporous LiCoO2. A Li-Co-O sol was injected into the template, and it was calcined at high temperatures. A porous membrane of LiCoO2 with three dimensionally ordered macroporous (3DOM) structure was obtained. The prepared material had a rock-salt type crystallographic structure with R3m space group. The interconnected macropores with relative uniform size (0.8~0.9 ;m) were observed on entire part of the membrane. The electrochemical properties of the 3DOM LiCoO2 were characterized with galvanostatic charge-discharge measurements in an organic electrolyte containing a lithium salt. The 3DOM LiCoO2 exhibited charge and discharge capacities of 136 and 107 mA h g-1, respectively, at around 3.9 V vs. Li/Li+, indicating that 3DOM LiCoO2 electrode had solid state redox reaction accompanying with Li+ ion insertion and extraction to CoO2 frameworks.

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Periodical:

Edited by:

K. Katayama, K. Kato, T. Takenaka, M. Takata and K. Shinozaki

Pages:

195-198

Citation:

S. W. Woo et al., "Preparation of Three Dimensionally Ordered Macroporous LiCoO2 Cathode for Lithium Batteries", Key Engineering Materials, Vol. 350, pp. 195-198, 2007

Online since:

October 2007

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$38.00

[1] J.R. Owen, Chem. Soc. Rev., 26 (1997) p.259.

[2] C.J. Patrissi, C.R. Martin, J. Electrochem. Soc., 146 (1999) p.3176.

[3] J.C. Lytle, H. Yan, N.S. Ergang, W.H. Smyrl, A. Stein, J. Mater. Chem., 14 (2004) p.1616.

[4] L. Kavan, M. Zukalova, M. Kalbac, M. Graetzel, J. Electrochem. Soc., 151 (2004) p. A1301.

[5] J.S. Sakamoto, B. Dunn, J. Mater. Chem., 12 (2002) p.2859.

[6] A. Stein, R.C. Schroden, Curr. Opin. Solid State Mater. Sci., 5 (2001) p.553.

[7] R. Rengarajan, P. Jiang, V. Colvin, D. Mittleman, Appl. Phys. Lett., 77 (2000) p.3517.

[8] G. Chai, S.B. Yoon, S. Kang, J.H. Choi, Y.E. Sung, Y.S. Ahn, H.S. Kim, J.S. Yu, Electrochim. Acta, 50 (2004) p.823.

[9] K. Zhang, N.R. Washburn, C.G. Simon Jr., Biomaterials, 26 (2005) p.4532.

[10] K.M. Kulinowski, P. Jiang, H. Vaswani, V.L. Colvin, Adv. Mater., 12 (2000) p.833.

[11] K. Kanamura, T. Umegaki, H. Naito, Z. Takehara, T. Yao, J. Appl. Electrochem., 31 (2001) p.73.

[12] R.J. Gummow, M.M. Thackeray, W.I.F. David, S. Hull, Mater. Res. Bull., 27 (1992) p.327.

[13] S.G. Kang, Y.S. Kang, K.S. Ryu, S.H. Chang, Solid State Ionics, 120 (1999).

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