Electrochemical Studies of Li Intercalation in Ni0.2V2O5 Aerogel

리튬전지용 Ni0.2V2O5 Aerogel 전극의 특성

  • Park, Heai-Ku (Department of Industrial Chemistry, Keimyung University) ;
  • Kim, Kwang-Hyun (Department of Industrial Chemistry, Keimyung University)
  • 박희구 (계명대학교 공과대학 공업화학과) ;
  • 김광현 (계명대학교 공과대학 공업화학과)
  • Received : 1999.03.24
  • Accepted : 1999.04.14
  • Published : 1999.05.10

Abstract

$Ni_{0.2}V_2O_5$ aerogel (ARG) was synthesized via the sol gel method and has been studied with an emphasis on the characterization of its electrochemical properties. ARG appear to be amorphous layered material. Electron micrograph revealed that entangled fibrous textures has been grown to form anisotropic corrugated sheets. Several sites for the Li ion intercalation exist between the layers of ARG and average cell potential was 3.1 V vs $Li/Li^+$ Th charge transfer resistance increases 3 to 4 times as lithium composition increases, but the interphase resistance remains almost constant regardless of the lithium composition in thc ARG.

Keywords

$Ni_{0.2}V_2O_5$ Aerogel;Lithium Battery;Cathode Material;lntercalation

Acknowledgement

Supported by : 한국학술진흥재단

References

  1. J. Electrochem. Soc. v.143 W. Xing;J. S. Xue;T. Zheng;A. Gibaud;J. R. Dahn
  2. Chem. Mater. v.7 S. Passerini;D. Chang;X. Chu;D. B. Le;W. H. Smyrl
  3. J. Electrochem. Soc. v.142 H.-K. Park;W. H. Smyrl;M. D. Ward
  4. Mat. Res. Bull v.16 P. Aldebert;N. Baffier;N. Gharbi;J. Livage
  5. J. Mater. Chem. v.2 T. Yao;Y. Oka;N. Yamamoto
  6. J. Power Sources v.68 M. M. Thackeray;M. F. Mansuetto;J. B. Bates
  7. Mat. Res. Bull. v.26 J. Livage
  8. Modern Aspect of Electrochemistry v.15 W. R. Mckinnon;R. R. Haering
  9. J. Electrochem. Soc. v.146 P. Yu;B. N. Popov;J. A. Ritter;R. E. White
  10. Mat. Res. Bull. v.24 L. Znaidi;N. Baffier;M. Huber
  11. Electrochim. Acta. v.38 K. West;B. Zachau-Chratiansen;T. Jacobsen;S. Skaarup
  12. Eelctrochemical Methods A. J. Bard;L. R. Faulkner