Synthesis and Electrochemical Characterization of LiMn<sub>2</sub>O<sub>4</sub> Cathode Materials for Lithium Polymer Batteries

Yang-Kook Sun; Dong-Won Kim

Korean Journal of Chemical Engineering, Vol.16, No.4, 449-455, July, 1999

DOI10.1007/BF02698267 Export Citation

Synthesis and Electrochemical Characterization of LiMn₂O₄ Cathode Materials for Lithium Polymer Batteries

Yang-Kook Sun^†, and Dong-Won Kim

Polymer Materials Laboratory, Chemical Sector, Samsung Advanced Institute of Technology, Taejon, Korea

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Spinel LiMn₂O₄ powders with sub-micron, narrow particle-size distribution, and phase-pure particles were synthesized at low temperatures from aqueous solution of metal acetate containing glyoxylic acid as a chelating agent by a sol-gel method. The effects of the calcination temperature and glyoxylic acid quantity on the physicochemical properties of spinel LiMn₂O₄ powders were examined with X-ray diffractometry(XRD), the Brunauer-Emmett-Teller(BET) method and scanning electron microscopy(SEM). Porous LiMn₂O₄ electrode was characterized electrochemically with charge/LiMn₂O₄ cell has been discussed in terms of contact and interfacial resistance by A.C. impedance spectroscopy.

Keywords:Lithium Manganese Oxide;Sol-Gel Method;Chelating Agent;Glyoxylic Acid;Lithium Polymer Batteries

[References]

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[Referenced By]

[1] Bruce PG, Krok F, Solid State Ion., 36, 171 (1989)

[2] Choi YM, Pyun SI, Bae JS, Moon SI, J. Power Sources, 56, 15 (1995)

[3] Fauteux D, J. Electrochem. Soc., 135, 2231 (1988)

[4] Guyomard D, Tarascon JM, Solid State Ion., 69(3-4), 222 (1994)

[5] Gao Y, Dahn JR, J. Electrochem. Soc., 143(1), 100 (1996)

[6] Hiratani M, Miyauchi K, Kudo T, Solid State Ion., 28-30, 1431 (1988)

[7] Jang DH, Shin YJ, Oh SM, J. Electrochem. Soc., 143(7), 2204 (1996)

[8] Jiang ZP, Abraham KM, J. Electrochem. Soc., 143(5), 1591 (1996)

[9] Koksbang R, Olsen II, Tonder PE, Knudsen N, Fauteux D, J. Appl. Electrochem., 21, 301 (1991)

[10] Lessing PA, Ceram. Bull., 68, 1002 (1989)

[11] Macklin WJ, Neat RJ, Powell RJ, J. Power Sources, 34, 39 (1991)

[12] Masquelier C, Tabuchi M, Ado K, Kanno R, Kobayashi Y, Maki Y, Nakamura O, Goodenough B, J. Solid State Chem., 123, 255 (1996)

[13] Ratnakumar BV, Di Stefano S, Bankston CP, J. Appl. Electrochem., 19, 813 (1989)

[14] Steele BCH, Lagos GE, Spurdens PC, Forsyth C, Foord AD, Solid State Ion., 9-10, 391 (1983)

[15] Sun YK, Oh IH, Kim KY, Ind. Eng. Chem. Res., 36(11), 4839 (1997)

[16] Sun YK, Solid State Ion., 100(1-2), 115 (1997)

[17] Xia YY, Zhou YH, Yoshio M, J. Electrochem. Soc., 144(8), 2593 (1997)