Battery Zinc Electrode Kinetics Investigation.
Abstract
Time-to passivation studies have been made on the zinc electrode in a range of KOH solutions. Attempts to interpret results in terms of rate at which charge transfer product dissolves encountered theoretical difficulties. Limiting diffusion currents have been measured in 1 to 13.4 M KOH over a temperature range of -33 to 44C. The diffusion coefficients of the zincate ion have been measured polarographically. The exhange current densities of the zinc electrode in KOH solutions were measured over a temperature range of -33 to +55C in 1 to 14 molar KOH. Galvanostatic, double impulse, and potentiostatic methods were used. Double layer capacitance of the zinc electrode was also measured at room temperature in a variety of solutions. An NMR study of Zincate Solutions shows only evidence for Zn(OH)4(-2). (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 15, 1972
- Accession Number
- AD0753096
Entities
People
- T. P. Dirkse
Organizations
- Calvin University