LITHIUM-NICKEL HALIDE SECONDARY BATTERY INVESTIGATION
Abstract
The report encompasses a study of the electrode processes, the electrolyte, and cell components of the nickel chloride-lithium cell. Compatability test results are discussed and recommendations for cell components made. Electrolytes, based on the compatability tests, were made and evaluated. A major modification to the propylene carbonate - AlCl3 electrolyte was made. The electrolyte is chlorinated and the excess chlorine scavenged with lithium metal. This modification has greatly reduced the kinetic polarization originally associated with the nickel chloride electrode. A satisfactory lithium electrode was prepared by pasting an oil mixture of powdered lithium, carbonyl nickel and a carboxymethylcellulose binder on an expanded nickel screen. Three good separator materials were found for the chloride system. Through the technique of 'formation cycling', nickel chloride electrodes were prepared which yield 80% utilization of the theoretical capacity. Concentration polarization at the nickel chloride electrode restricts the discharge rate to C/ 40 and charge rates to C/20. Methods of reducing the concentration polarization are outlined. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1965
- Accession Number
- AD0612492
Entities
People
- A. Lyall
- H. N. Seiger
- R. C. Shair