DIFFUSION OF POTASSIUM IN A LIQUID METAL CELL,
Abstract
This report presents the results of a study of potassium diffusion in the electrodes of a liquid metal cell (LMC) and its effect on cell performance. Experimental work 1nd analytical analyses were initiated to (1) investigate diffusion properties of amalgams, and (2) evaluate the effect of diffusion rate on LMC performance. Analyses of diffusion characteristics were conducted to relate electrode-electrolyte interface concentrations with bulk electrode concentrations as a function of diffusion coefficients. These analyses were programmed into a computer mathematical model. Attempts were made to correlate the mathematical model with data obtained from cells operated at the Allison Research Laboratories. System performance is presented for two basic cell configurations. The first cell, designed for space systems, is identical to that presented in Reference 1. The second is based on electrode thicknesses, electrolyte resistance, and concentrations currently experienced in the laboratory. Supplementary data regarding (1) interface concentration equation, (2) diffusion in the LMC, (3) parametric analysis of the liquid metal fuel cell, and (4) determination of diffusion coefficient are presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 21, 1964
- Accession Number
- AD0438407
Entities
People
- R. B. Wright
Organizations
- General Motors