The Effects of Additives on Nickel Electrode Discharge Kinetics.
Abstract
The effects of Ba, Cd, Co, Li, Mn, and Zn additives on the impedance of porous nickel electrodes have been measured. The resistance to proton diffusion in the charged electrode is decreased only by Li, Co, and Mn additives. The charge transfer resistancce of the nickel electrode can be decreased up to two orders of magnitude by Co and Li additives. The electronic resistance of the discharged active material is reduced significantly by Mn and Co and to a lesser extent by Li. Data are presented indicating that the resistance characteristics correlate with performance during high rate cycling, and that the effects of additives on the physical structure of the active material deposit can be just as important as changes on conductivity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1985
- Accession Number
- ADA161310
Entities
People
- Albert H. Zimmerman
- Peter K. Effa
Organizations
- The Aerospace Corporation