| Issue |
Korean Journal of Chemical Engineering,
Vol.18, No.5, 765-769, 2001
Vol.18, No.5, 765-769, 2001
Synthesis and Electrochemical Properties of HT-LiCo0.8Ni0.2O2 Prepared by Molten Salt Synthesis Method using 0.59LiNO3-0.41LiOH System
LiCo0.8Ni0.2O2 powders were prepared by molten salt synthesis method using a 0.59LiNO3-0.41LiOH melt. The physico-chemical properties of the LiCo0.8Ni0.2O2 powders were investigated by powder X-ray diffraction method, field emission scanning electron microscopy, cyclic voltammetry, and charge-discharge cycling. Uniform size nanocrystalline powder (~40 nm) could be obtained at temperature ranges of 280-480 ℃. These nanocrystalline powders showed poor electrochemical properties because of presence of the low temperature phase. Pure single-phase HT-LiCo0.8Ni0.2O2 powder could be obtained at 580 ℃. Charge-discharge measurements indicated that this exhibited a good capacity and cyclability without further heat treatment at higher temperatures.
[References]
- Garcia B, Farcy J, Pereiraramos JP, Baffier N, J. Electrochem. Soc., 144(4), 1179, 1997
- Gummow RJ, Thackeray MM, J. Electrochem. Soc., 140(12), 3365, 1993
- Han CH, Hong YS, Park CM, Kim K, J. Power Sources, 92(1-2), 95, 2001
- Jang YI, Huang BY, Wang HF, Sadoway DR, Ceder G, Chiang YM, Liu H, Tamura H, J. Electrochem. Soc., 146(3), 862, 1999
- Kim SJ, Hong YS, Park HB, Park SY, Kim K, J. Mater. Sci. Lett., 15(16), 1443, 1996
- Li W, Currie C, J. Electrochem. Soc., 144(8), 2773, 1997
- Ohzuku T, Yanagawa T, Kouguchi M, Ueda A, J. Power Sources, 68(1), 131, 1997
- Rodriguez-Carvajal J, Program FULLPROF, version 3.2, January 1997, LLB
- Wang GX, Zhong S, Bradhurst DH, Dou SX, Liu HK, J. Power Sources, 76(2), 141, 1998
- Wang HF, Jang YI, Huang BY, Sadoway DR, Chiang YT, J. Electrochem. Soc., 146(2), 473, 1999
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