Title :
Development of a high-density pasted nickel electrode and battery
Author :
Watada, M. ; Ohnishi, M. ; Harada, Y. ; Oshitani, M.
Author_Institution :
Yuasa Battery Co. Ltd., Osaka, Japan
Abstract :
The authors developed a high energy density sealed Ni-Cd battery consisting of a pasted nickel electrode with a highly porous Ni fiber felt substrate and high-density nickel hydroxide powder. The high-density nickel hydroxide powder having a spherical shape made it possible to obtain a pasted nickel electrode with an energy density exceeding 550 mAh/cm3. The nickel electrode with high density nickel hydroxide powder added with Zn or Cd as a solid solution improved the cycle life and high-rate discharge characteristics. Additionally, high temperature charge acceptance is improved by the addition of cobalt together with Zn or Cd. The newly developed battery has a capacity of 800 mAh in AA size. 1800 mAh in SC size and 3000 mAh in C size
Keywords :
cadmium; electrochemical electrodes; nickel; secondary cells; Ni-Cd secondary cells; cycle life; energy density; fiber felt substrate; high temperature charge acceptance; high-density pasted electrode; high-rate discharge characteristics; Batteries; Cobalt; Electrodes; Laboratories; Manufacturing processes; Nickel; Oxidation; Polymers; Powders; Steel;
Conference_Titel :
Power Sources Symposium, 1990., Proceedings of the 34th International
Conference_Location :
Cherry Hill, NJ
Print_ISBN :
0-87942-604-7
DOI :
10.1109/IPSS.1990.145852
