Characteristics of $\textrm{LiMn}_{2}\textrm{O}_{4}$ Cathode Material Prepared by Sol-Gel and Solid State Methods for Li Ion Battery

졸-겔법과 고상반응법에 의해 제조된 Li Ion 전지용 $\textrm{LiMn}_{2}\textrm{O}_{4}$ 정극재료 특성

  • Kim, Guk-Tae (Dept. of Inorganic Materials Eng. Gyeongsang National University) ;
  • Sim, Yeong-Jae (Dept. of Inorganic Materials Eng. Gyeongsang National University)
  • 김국태 (경상대학교 무기재료공학과) ;
  • 심영재 (경상대학교 무기재료공학과)
  • Published : 1997.06.01

Abstract

Li ion전지용 LiMn$_{2}$O$_{4}$분말을 졸-겔법과 고상반응법으로 제조하여 분말의 특성과 전지의 특성을 비교하였다. 졸-겔법에 의해 제조된 LiMn$_{2}$O$_{4}$분말은 고상반응법에 의해 제조된 분말보다 낮은 온도에서 합성이 가능하고, 균질하고 작은 입자들로 구성되었으며, Li stoichiometry가 우수하여 전지의 방전용량이 크나 양이온 혼합도가 높아 전지의 내부저항이 크게 나타났다. 졸-겔법은 높은 Li stoichiometry와 균질한 입자 크기를 갖는 LiMn$_{2}$O$_{4}$분말 제조에 적당한 것으로 생각되며, 전지의 내부저항 문제는 분말의 하소온도와 냉각속도의 조절에 의해 가능할 것으로 판단된다.

Keywords

References

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