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http://dx.doi.org/10.5229/JKES.2012.15.2.67

Relationship between Particle Density and Electrochemical Properties of Spherical LiMn2-xMxO4 (M = Al, Mg, B) Spinel Cathode Materials  

Kim, Kyoung-Hee (Advanced Batteries Research Center, Korea Electronic Technology Institute)
Jung, Tae-Gyu (Advanced Batteries Research Center, Korea Electronic Technology Institute)
Song, Jun-Ho (Advanced Batteries Research Center, Korea Electronic Technology Institute)
Kim, Young-Jun (Advanced Batteries Research Center, Korea Electronic Technology Institute)
Publication Information
Journal of the Korean Electrochemical Society / v.15, no.2, 2012 , pp. 67-73 More about this Journal
Abstract
Spherical lithium manganese oxide spinel, $LiMn_{2-x}M_xO_4$ (M = Al, Mg, B) prepared by wet-milling, spray-drying, and sintering process has been investigated as a cathode material for lithium ion batteries. As-prepared powders exhibit various surface morphologies and internal density in terms of boron (B) doping level. It is found that the dopant B drives the growth of the primary particle and minimizes the surface area of the powder. As a result, the dopant enhances the internal density of the particles. Electrochemical tests demonstrated that the capacity of the synthesized material at 5 C could be maintained up to 90% of that at 0.2 C. The cycle performance of the material showed that the initial capacity was retained up to 80% even after 500 cycles under the high temperature of $60^{\circ}C$.
Keywords
Li-ion battery; Cathode active material; Lithium manganese oxide spinel; Spray-drying; Rate-capability;
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  • Reference
1 Y. Gao and J. R. Dahn, 'Correlation between the growth of the 3.3 V discharge plateau and capacity fading in $Li_{1+x}Mn_{2x}O_{4}$ materials', Solid State Ionics, 84, 33 (1996).   DOI
2 Y. Gao and J. R. Dahn, 'Synthesis and Characterization of $Li_{1+x}Mn_{2x}O_{4}$ for Li-Ion Battery Applications', J. Electrochem. Soc., 143, 100 (1996).   DOI
3 Y. Xia and M. Yoshio, 'An Investigation of Lithium Ion Insertion into Spinel Structure Li-Mn-O Compounds', J. Electrochem. Soc., 143, 825 (1996).   DOI
4 G. H. Li, H. Ikuta, and T. Uchida, 'The Spinel Phases $LiMyMn_{2-y}O_{4}$ (M= Co, Cr, Ni) as the Cathode for Rechargeable Lithium Batteries', J. Electrochem. Soc., 143, 178 (1996).   DOI
5 S. T. Myung, S. Komaba, and N. Kumagai, 'Enhanced Structural Stability and Cyclability of Al-Doped $LiMn_{2}O_{4}$ Spinel Synthesized by the Emulsion Drying Method', J. Electrochem. Soc., 148, A482 (2001).   DOI   ScienceOn
6 A. Veluchamy, H. Ikuta, and M. Wakihara, 'Boronsubstituted manganese spinel oxide cathode for lithium ion battery', Solid State Ionics, 143, 161 (2001).   DOI
7 Y. Xia, Q. Zhang, H. Wag, H. Nakamura, H. Noguchi, and M. yoshio, 'Improved cycling performance of oxygenstoichiometric spinel $Li_{1+x}AlyMn_{2-x-y}O_{4+\delta}$ at elevated temperature', Electrochimica Acta, 52, 4708 (2007).   DOI   ScienceOn
8 C. Sigala, D. Guyomard, A. Vebaere, Y. Piffard, and M. Tourmous, 'Positive electrode materials with high operating voltage for lithium batteries: $LiCryMn_{2-y}O_{4}$ (0 $\leq$ y $\leq$ 1)', Solid State Ionics, 81, 167 (1995).   DOI
9 J. Desilvestro and O. Haas, 'Metal Oxide Cathode Materials for Electrochemical Energy Storage: A Review', J. Electrochem. Soc., 137, 5C (1990).   DOI
10 S. Megahed and B. Scrosati, 'Lithium-ion rechargeable batteries', J. Power Sources, 51, 79 (1994).   DOI