Abstract
A sulfur-doped spinel material, LiAl0.18Mn1.82O3.97S0.03, was synthesized by a sol-gel method using glycolic acid as chelating agent. The structural change of the oxysulfide spinel before and after cycling at elevated temperature was studied by charge/discharge measurements and X-ray diffraction. The capacity loss during cycling was noticeably increased in the cell operation temperature from 50 to 80 °C. The capacity loss for the spinel material during cycling at elevated temperature is largely attributed to the formation of tetragonal Li2Mn2O4 and rock salt phase Li2MnO3.
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Amatucci, G.G., Bylr, A., Signable, C., Alfonse, P. and Tarascon, J.-M., “Surface Treatments of Li1+xMn2-xO4 Spinels for Improved Elevated Temperature Performance,”Solid State Ionics,104, 131997).
Amatucci, G.G., Pereira, N., Zheng, T. and Tarascon, J.-M., “Failure Mechanism and Improvement of the Elevated Temperature Cycling of LiMn2O4 Compounds Through the Use of the LiAlxMn2-xO4-zFz Solid Solution,”J. Electrochem. Soc.,148, A171 (2001).
Amatucci, G.G., Schmutz, C.N., Bylr, A., Siala, C., Gozdz, A. S., Larcher, D. and Tarascon, J.M., “Materials’ Effects on the Elevated and Room Temperature Performance of C/LiMn2O4 Li-Ion Batteries,”J. of Power Sources.,69, 11 (1997).
Amine, K., Tukamoto, H., Yasuda, H. and Fujita, Y., “A New Threevolt spinel Li1+xMn1.5Ni0.5O4 for Secondary Lithium Batteries,”J. Electrochem. Soc.,143, 1607 (1996).
Cho, J. and Thackeray, M. M., “Structural Changes of LiMn2O4 Spinel Electrodes during Electrochemical Cycling,”J. Electrochem. Soc.,146, 3577 (1999).
Cho, J., Kim, G. B., Lim, H. S., Kim, C.-S. and Yoo, S.-I., “Improvement of Structural Stability of LiMn2O4 Cathode Material on 55 °C Cycling by Sol-Gel Coating of LiCoO2,”Electrochemical & Solid-State Letters,2, 609 (1999).
Gee, B., Horne, C. R., Cairns, E. J. and Reimers, J.A., “Supertransferred Hyperfine Fields at 7Li Variable Temperature 7Li NMR Studies of LiMn2O4-Based Spinels,”J. Phys. Chem. B.,102, 10142 (1998).
Myung, S.-T., Komba, S. and Kumagai, N., “Enhanced Structural Stability and Cyclability of Al-Doped LiMn2O4 Spinel Synthesized by the Emulsion Drying Method,”J. Electrochem. Soc.,148, A482 (2001).
Park, S. H., Park, K. S., Sun, Y.-K. and Nahm, K. S., “Synthesis and Characterization of a New Spinel, Li1.02Al0.25Mn1.75O3.97S0.03, Operating at Potentials Between 4.3 and 2.4V,”J. of Electrochem. Soc.,147, 2116 (2000).
Pasquier, A.D., Blyr, A., Courjal, P., Larcher, D., Amatucci, G., Gerand, B. and Tarascon, J.-M., “Mechanism for Limited 55 °C Storage Performance of Li1.05Mn1.95O4 Electrode,”J. Electrochem. Soc.,146, 428 (1999).
Robertson, A.D., Lu, S.H. and Howard,. Jr W. F., “M3+-Modified Li Mn2O4 Spinel Intercalation Cathodes. II. Electrochemical Stabilization by Cr3+,”J. Electrochem. Soc.,144, 3505 (1997).
Sun, Y.-K. and Kim, D.-W., “Synthesis and Electrochemical Characterization of LiMn2O4 Cathode Materials Prepared for Lithium Polymer Batteries,”Korean J. Chem. Eng.,16, 449 (1999).
Sun, Y.-K., “Structural Degradation Mechanism of Oxysulfide Spinel LiAl0.24Mn1.76O3.98S0.02 Cathode Materials on High Temperature,”Electrochemistry Communications,3, 199 (2001).
Sun, Y.-K., “Synthesis and Electrochemical Studies of Spinel Li1.03Mn2O4 Cathode Materials Prepared by a Sol-Gel Method for Lithium Secondary Batteries,”Solid State Ionics,100, 115 (1997).
Thackeray, M. M., Yang, S., Kahaian, A. J., Kepler, K.D., Skinner, E., Vaughey, J. T. and Hackney, S.A., “Structural Fatigue in Spinel Electrodes in High Voltage (4V) Li/LixMn2O4 Cells,”Electrochemical & Solid-State Lett.,1, 7 (1998).
Xia, Y., Kumada, N. and Yoshio, M., “Enhancing the Elevated Temperature Performance of Li/LiMn2O4 Cells by Reducing LiMn2O4 Surface Area,”J. Power Sources,90, 135 (2000).
Xia, Y., Zhou, Y. and Yoshio, M., “Capacity Fading on Li/LiMn2O4 Cells Cycling of 4 V,”J. Electrochem. Soc.,144, 2593 (1997).
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This paper is dedicated to Professor Wha Young Lee on the occasion of his retirement from Seoul National University.
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Sun, YK., Nahm, K.S. Electrochemical properties of the oxysulfide lial0.18mn1.82o3.97s0.03 cathode materials at elevated temperature. Korean J. Chem. Eng. 19, 718–721 (2002). https://doi.org/10.1007/BF02699323
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DOI: https://doi.org/10.1007/BF02699323