An Improvement of the Characteristics of Pasted Cadmium Electrodes by Electrolytes in Ni/Cd Battery

Ni/Cd 전지에서 전해액에 의한 페이스트식 카드뮴 전극 특성 향상

  • Han, Min-Young (Department of Chemical Engineering, Chonnam National University) ;
  • Lee, Wan-Jin (Faculty of Applied Chemistry, Chonnam National University) ;
  • Lee, Woo-Tai (Department of Chemical Engineering, Chonnam National University) ;
  • Kim, Sun-Il (Department of Chemical Engineering, Chosun University) ;
  • Kim, Jin-Hwan (Department of Chemical Engineering, Chonnam National University)
  • Received : 1999.08.25
  • Accepted : 1999.11.01
  • Published : 1999.12.10


The morphology changes of cadmium hydroxide into ${\gamma}$ phase by eletrolytes were carried out to improve the high rate charge and discharge efficiency of pasted cadmium electrodes. KOH solutions with different concentrations of NaOH were used as eletrolytes. It was found that the utilization of active material of cadmium electrode was the best in an electrolyte with 1.82 M NaOH. The amount of ${\gamma}-Cd(OH)_2$ increased in proportion to the concentration of NaOH. The surface area measurement showed that an active material which contained mainly ${\gamma}-Cd(OH)_2$ had a higher specific surface area than an active material of ${\beta}-Cd(OH)_2$. In a sealed cell, the discharge capacity was improved at high rate charge and discharge (1.0 C, 2.0 C) by using an electrolyte with NaOH. Furthermore, these improved performances were maintained up to 500 cycles at 1.0 C rate charge and discharge cycles.


pasted cadmium electrode;structure;electrolyte;$Cd(OH)_2$ system


  1. J. Electrochem. Soc. v.113 M. W. Breiter;J. L. Weininger
  2. J. Electrochem. Soc. v.27 K. E. Heusler;L. Gaiser
  3. Denki Kagaku v.32 S. Yoshizawa;Z. Takehara
  4. J. Power Sources v.8 P. Oliva;J. Leonardi;J. F. Laurent;C. Delmas;J. J. Braconnier;M. Figlarz;F. Fievet;A. de Guibert
  5. Mater. Res. Bull. v.25 M. Schmidt;H. D. Lutz
  6. 28th Intersociety Energy Conversion Engineering Conference v.1 O. J. Timmerman
  7. J. Applied Electrochem v.15 M. Z. A. Munshi;A. C. C. Tseung;J. Parker;J. L. Dawson
  8. Yuasa-Jiho v.59 M. Oshitani;T. Takayama;H. Uramoto;S. Tsuji
  9. Mater. Res. Bull. v.25 A. Riou;Y. Cudennec;Y. Gerault
  10. J. Appl. Electrochem v.11 R. Barnard
  11. J. Applied Electrochem. v.17 M. Z. A. Munshi;A. C. C. Tseung;J. Parker
  12. Yuasa-Jiho v.68 M. Oshitani;M. Ohnishi;C. Kawamura
  13. Alkaline Storage Batteries S. U. Falk;A. J. Salkind
  14. Denki Kagaku v.34 S. Yoshizawa;Z. Takehara
  15. Denki Kagaku v.63 H. Kaiya;N. Fujioka;S. Kaida
  16. 新しぃ電池技術のはなし 川內晶介;飯島孝志;川瀨哲成
  17. Denki Kagaku v.30 T. Hosono;M. Matsui
  18. Spectrochim. Acta v.A52 B. Weckler;H. D. Lutz
  19. J. Electrochem. Soc. v.117 Y. Okinaka
  20. Denki Kagaku v.29 T. Hosono;M. Matsui
  21. Denki Kagaku v.27 T. Hosono;M. Matsui;K. Suzuki
  22. Yuasa-Jiho v.51 M. Oshitani;M. Yamane;S. Hattori;S. Kimura
  23. Denki Kagaku v.63 H. Kaiya;N. Fujioka
  24. Mater. Res. Bull. v.23 A. Lecery;Y. C. A. Riou;Y. Gereult
  25. J. Electrochem. Soc. v.117 Y. Okinaka;C. M. Whitehurst