Characterization of materials for Ca/CaCrO/sub 4/ thermal batteries
The performance of pelletized Ca/CaCrO/sub 4/ thermal batteries is known to be sensitive to processing of the catholyte or DEB mix, which consists of CaCrO/sub 4/ depolarizer(D), KCl-LiCl eutectic electrolyte(E), and SiO/sub 2/ binder(B). The chemical composition of the DEB mix affects the electrochemical behavior. Little work has been reported, however, for the characterization of DEB mixes in relation to their performance in Ca/CaCrO/sub 4/ thermal batteries. Considerable variability of battery performance has also been observed when different lots of sheet calcium are used with the same DEB. The causes for this behavior remain elusive. In an effort to resolve these discrepancies in materials behavior, a study was carried out to characterize DEB powders and pellets and, to a lesser extent, sheet calcium, with the primary objective of correlating observed battery performance to easily measured physical and chemical properties. A secondary objective was to examine the suitability of such techniques for process control and quality assurance during battery production. Results are presented and discussed.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA); General Electric Co., St. Petersburg, FL (USA). Neutron Devices Dept.
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5234184
- Report Number(s):
- SAND-81-2442C; CONF-820621-4; ON: DE82009028
- Country of Publication:
- United States
- Language:
- English
Similar Records
Characterization of cathodic corrosion products in the Ca/CaCrO/sub 4/ thermal battery
Investigation of the dissolution of CaCrO/sub 4/ in molten LiCl-KCl eutectic
Related Subjects
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
BINDERS
CALCIUM
CALCIUM COMPOUNDS
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CHROMATES
CHROMIUM COMPOUNDS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
LITHIUM CHLORIDES
LITHIUM COMPOUNDS
LITHIUM HALIDES
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
PELLETS
PERFORMANCE
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
POWDERS
QUALITY ASSURANCE
SILICON COMPOUNDS
SILICON OXIDES
THERMAL BATTERIES
TRANSITION ELEMENT COMPOUNDS