Browse > Article
http://dx.doi.org/10.4313/JKEM.2007.20.5.443

Stability of Li[Co0.1Ni0.15Li0.2Mn0.55]O2 Cathode Material for Lithium Secondary Battery  

Park, Yong-Joon (경기대학교 신소재공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.20, no.5, 2007 , pp. 443-449 More about this Journal
Abstract
The structural and thermal stability of $Li[Co_{0.1}Ni_{0.15}Li_{0.2}Mn_{0.55}]O_2$ electrode during cycling process was studied. The sample was prepared by simple combustion method. Although there were irreversible changes on the initial cycle, O3 stacking for $Li[Co_{0.1}Ni_{0.15}Li_{0.2}Mn_{0.55}]O_2$ structure was retained during the first and subsequent cycling process. Impedance of the test cell was decreased after the first charge-discharge process, which would be of benefit to intercalation and deintercalation of lithium ion on subsequent cycling. As expected, cycling test for 75 times increased impedance of the cell a little, instead, thermal stability of $Li[Co_{0.1}Ni_{0.15}Li_{0.2}Mn_{0.55}]O_2$ was improved. Moreover, based on DSC analysis, the initial exothermic peak was shifted to high temperature range and the amount of heat was also decreased after cycling test, which displayed that thermal stability was not deteriorated during cycling.
Keywords
Cathode material; Lithium battery; Thermal stability; Impedance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 박용준, 'Li[Co$_{0.50}Li_{0.17}Mn_{0.33}]O_2$ 양극물질의 고율 충방전 특성', 전기전자재료학회논문지, 19권, 8호, p. 737, 2006   과학기술학회마을   DOI
2 G. T.-K. Fey, C.-Z. Lu, and T. P. Kumar, 'Preparation and electrochemical properties of high-voltage cathode materials', $LiM_yNi_{0.5-y}Mn_{1.5}O_4$ (M=Fe, Cu, AI, Mg: y=0.0 - 0.4), J. Power Sources, Vol. 115, p. 332, 2003   DOI   ScienceOn
3 Z. Lu, L. Y. Beaulieu, R. A. Donaberger, C. L. Thomas, and J. R. Dahn, 'Synthesis, structure, and electrochemical behavior of Li[$Ni_xLi_{(1/3-2X/3)}Mn_{(2/3-X/3)}]O_2$', J. Electrochem. Soc., Vol. 149, p. A778, 2002   DOI   ScienceOn
4 Z. Lu and J. R. Dahn, 'Understanding the anomalous capacity of Li/Li [$Ni_xLi_{1/3-2X/3}Mn_{2/3-X/3}]O_2$ cells using in situ X -ray diffraction and electrochemical studies', J. Electrochern. Soc., Vol. 149, p. A815, 2002   DOI   ScienceOn
5 Z. Lu, and J. R. Dahn, 'Structure and electrochemistry of layered $Li[Cr_xLi_{(1/3-X/3)}Mn{(2/3-2X/3)}]O_2$', J. Electrochem. Soc., Vol. 149. p. A1454, 2002   DOI   ScienceOn
6 Y. J. Park, M. G. Kim, Y.-S. Hong, X. Wu, K. S. Ryu, and S. H. Chang, 'Electrochemical behaviou of Li intercalation processes into a $Li[Ni_xLi_{(1/3-2X/3)}Mn_{(2/3-x/3)}]O_2$ cathode', Solid State Commun., Vol. 127, p. 509, 2003   DOI   ScienceOn
7 Y. J. Park, Y.-S. Hong, X. Wu, M. G. Kim, K. S. Ryu, and S. H. Chang, 'Synthesis and electrochemical characteristics of $Li[Co_xLi_{(1/3-x/3)}Mn_{(2/3-2x/3)}]O_2$ compounds', J. Electrochem. Soc., Vol. 151, No. 5, p. A720, 2004   DOI   ScienceOn
8 Y. J. Park, Y.-S. Hong, X. Wu, K. S. Ryu, and S. H. Chang, 'Structural investigation and electrochemical behaviour of $Li[Ni_xLi_{(1/3-2x/3)}Mn_{(2/3-x/3)}]O_2$ compounds by a simple combustion method', J. Power Sources, Vol. 129, p. 288, 2004   DOI   ScienceOn
9 Y.-S. Hong, Y. J. Park, K. S. Ryu, S. H. Chang, and Y.-J. Shin, 'Structural and electrochemical properties of (1-x) $Li[Ni_{0.20}Li_{0.50}Mn_{0.60}]O_2-xLi[Co_{0.50}Li_{0.167}Mn_{0.333}]O_2$ for lithium secondary batteries', J. Power Sources, Vol. 147, p. 214, 2005   DOI   ScienceOn
10 Y.-S. Hong, Y. J. Park, K. S. Ryu, S. H. Chang, and M. G. Kim, 'Synthesis and electrochemical properties of nanocrystalline $Li[Ni_xLi{1-2x)/3}Mn_{(2-x)/3}]O_2$ prepared by a simple combustion method', J. Mater. Chem., Vol. 14, p. 1424, 2004   DOI   ScienceOn
11 A. D. Robertson and P. G. Bruce, 'Mechanism of electrochemical activity in $Li_2MnO_3$', Chem. Mater., Vol. 15, p. 1984, 2003   DOI   ScienceOn
12 K. Numata, C. Sakaki, and S. Yamanaka, 'Synthesis and characterization of layer structured solid solutions in the system of $LiCoO_2-Li_2MnO_3$', Solid State Ionics, Vol. 117, p. 257, 1999   DOI   ScienceOn