INVESTIGATION OF POROUS LITHIUM BATTERY ELECTRODES.
Abstract
Methods are investigated for producing highly porous lithium electrodes for use in rechargeable spacecraft batteries. This report describes the theoretical considerations that were used to examine types of electrode structures. The structures selected for experimentation will use lithium active material (1) on an inert, nonporous, foil support and (2) impregnated in an inert, porous support. Both structures appear to hold promise for improved rechargeable lithium electrodes having weights, perhaps, as low as 2 to 20% of equal capacity cadmium electrodes. Horizontally suspended electrodes were used in preliminary experiments designed to evaluate nonporous foil supports. Results of efficiency measurements indicated that efficiency can be independent of lithium thickness for films calculated to be about 1/100 mil to 1 mil thick. Furthermore, efficiency also appeared independent of current density between 1 and 10 ma/sq cm for films thinner than 1/100 mil. Both results are pertinent because lithium thickness and efficiency of utilization of lithium were two important parameters in the general equation which was developed in the aforementioned theoretical studies. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 30, 1966
- Accession Number
- AD0484218
Entities
People
- J. Mccallum
Organizations
- Battelle Memorial Institute