DOI QR코드

DOI QR Code

Electrochemical Properties and Estimation on Active Material LiMnO2 Synthesis for Secondary

  • Wee, Sung-Dong (Department of Electron Media, SungWon College) ;
  • Kim, Jong-Uk (Division of Electronics and Information Engineering, Chonbuk National University) ;
  • Gu, Hal-Bon (Department of electrical Engineering, Chonnam National University)
  • Published : 2003.04.01

Abstract

This paper is contents on the orthorhombic crystalline calcined by the solid phase method with LiMnO$_2$ thin film structured as the result which an average pore diameter of power was 132.3${\AA}$ in porosity analysis. Voltage ranges are able to get the properties of charge and discharge for experimental results of LiMnO$_2$ thin film were 2.2V 4.3V. The current density and scan speed were 0. 1㎃/$\textrm{cm}^2$ and 0.2㎷/sec respectively. Properties of the charge and discharge are obtained by optimum experiment condition parameters. Li dense ratio of the LiMnO$_2$ thin film that discharged capacities were 87㎃h/g have been 96.9[ppm] at 670.784[nm] wavelength. The dense ratio of Mn analyzed to 837[ppm] at 257.610[nm] wavelength. It can be estimated the quality of the LiMnO$_2$ thin film as that the wrong LiMnO$_2$ thin film pulled up from cell of electrolyte and became dry it at 800$^{\circ}C$. The results of SEM and XRD were the same as that of original researchers.

Keywords

References

  1. S. T. Myung, S. K.omaba, and N. Kumagai, 'Orthorhombic LiMn$O_2$ as high capacity catgode for lithium Ion battery by hydrother mal route at $170^\circC$', Chemirty Letters, p. 80, 2001
  2. S. T. Myung, S. Komaba, and N. Kumagai, 'Synthesis of orthorhombic LiMn$O_2$ as ahigh capacity cathode for lithium ion battery by emulsion drying method', Chemistry Letters, p. 574, 2001
  3. S. T. Myung, S. Komaba, N. Kumagai, T. Kanouch,and N. Kumagai, 'Hydrothemal synthesis of orthohombic LiMn$O_2$ and its electrochemical properties' 13th International Conference on Solid Ionic, Caims, Australia, Jul. 2001, p. 85
  4. S. Tobishima, Y. Ogino, and Yuwatanabe, 'Influence of additives in electrolyte solutions on safety and cycle life of lithium cells', Department of Chemistry, Faculty of Engineering, Gunma University. August 6, 2002
  5. Y. Sasaki, H. Miura, K. Tominaga, and N. Nanbu, 'Electric properties and application to a lithium battery of ternary solvent electrolyes with ethylene', Carbonate Dimethy1 Cabonate -3 Methylaydnone and 3_Ethy1sydnone, Depart ment of Applied Chemistry, Faculty of Engineering, Tokyo Institute of Polytechnics, February 21, 2002
  6. I. V. Kim, Y. J. Jo, and H. B. Gu, 'Electrochemical properties of LiMn$O_2$ organic composite cathodes with hight capacity for lithium ion polymer battery' Joumal of KIEEME, Vol. 15, No. 2, p. 162, 2002