Electrochemical Properties of Spinel $LiMn_2O_4$ Synthesized at Various Heat Treatment for Lithium lon Battery

리튬 이온 전지용 스피넬 $LiMn_2O_4$의 열처리 온도에 따른 전기 화학적 특성

  • Han, Tae-Hee (Dept.of Electric Engineering, Chonbuk National University) ;
  • Min, Hyung-Sik (Korea Reserch Institute of Standards and Science) ;
  • Han, Byoung-Sung (Dept.of Electric Engineering, Chonbuk National University)
  • Published : 1999.03.01

Abstract

In the past ten years, $LiMn_2O_4$-based spinels have been extensively studied as positive electrode materials for lithium-ion batteries. To improve the cycle performance of spinel $LiMn_2O_4$ as the cathode of 4V class lithium secondary batteries, spinel phases $LiMn_2O_4$ were prepared at various temperatures ranging form 600-900$^{\cire}C$ in air. The results showed that charge.dischare capacity of $LiMn_2O_4$ varied at 1st temperature from $200^{\circ}C to 600^{\circ}C$ increase with increasing temperature. $LiMn_2O_4$ synthesized at 2nd temperature $750^{\circ}C$excellent charge.discharge capacity, efficiency and cyclability compared to the samplesynthesized different temperatures. The value of lst charge.discharge capacity was 121mAh/g, 118mAh/g, Also, the efficiency value was about 97%.

Keywords

References

  1. Solid State Ionics v.84 Synthesis of electrochemically active LiCoO₂ and LiNiO₂ at 100℃ G.G.Amatucci;J.M.Tarascon;D.Larcher;L.C.Klein
  2. J. Power Sources v.54 Synthesis and properties of LiNiO₂ as cathode material for secondary batteries S.Yamada;M.Fujiwara; M.Kanda
  3. Solid State Ionics v.95 Electrochemical properties of $LiMn_2O_4$ composite electrode in cells based on glass-polymer composite electrolytes J.Cho;J.Guan;M.Liu
  4. J. Solid State Chem. v.88 Sol-Gel Synthesis of Manganese Oxides S.Bach;M.Henry;N.Baffier;J.Livage
  5. J. Electrochem. Soc. v.143 no.11 Electrochemical Characteristics of Spinel Phase $LiMn_2O_4$-Based Cathode Materials Prepared by the Pechini Process W. Liu;K. Kowal;G. C. Farrington
  6. J. Electrochem. Soc. v.144 no.12 Optimization of Spinel $Li_{1+x}Mn_{2-y}O_4$ as a 4V Li-Cell Cathode in Terms of a Li-Mn-O Phase Diagram Y.Xia; M.Yoshio
  7. J. Electrochem. Soc. v.143 no.1 The Spinel Phases $LiM_yMn_{2-y}O_4$(M=Co, Cr, Ni) as the Cathode for Rechargeable Lithium Batteries L.Guohua;H.Ikuta;T.Uchida;M.Wakihara
  8. J. Electrochem. Soc. v.138 no.10 Li metal-free rechargeable batteries based on $Li_{1+x}Mn_2O_4$ vathodes(0≤x≤1) and carbon anode J.M.Tarascon;E.Wang;F.K.Shokooki;W.R.Mckinnon;S.Colson
  9. Solid State Ionics v.89 Electrochemical and Magnetic properties of lithium manganese oxide spinels prepared by oxidation at low temperature of hydrothermally obtained LiMnO₂ M.Tabuchi;K.Ado;C.Masquelier;I.Matsubara
  10. J. Electrochem. Soc. v.142 no.8 Some Aspects of $LiMn_2O_4$ Electrochemistry in the 4 Volt Range G.Postoia;D.Zane;Y.Zhang
  11. Solid State Ionics v.90 Lithium extraction/insertion from $LiMn_2O_4$-effect of cristallinity T.Tsumura;A.Shimizu;M.Iangaki
  12. Solid State Ionics v.84 Correlation between the growth of the 3.3V discharge plateau and capacity fading in $Li_{1+x}Mn_{2-x}O_4$ materials Y.Gao;J.R.Dahn
  13. Solid State Ionics v.95 Electrochemical properties of $Li_xMn_2O_4$ composite electrode in cells based on glass-polymer composite electrolytes J.Cho;J.Guan;M.Liu
  14. Solide State Ionics v.69 Improved capacity retention in rechargeable 4V lithium/lithium-manganese oxide(spinel) cells R.G.Gummow;A.Kock;M.M.Thackeray
  15. リチウムオン二次電池;材料と應用 芳尾眞幸