Development of the zinc-chloride battery for utility applications. Work period: April 1, 1978-March 31, 1980. [Contains glossary]
Significant accomplishments in the research and development programs during Phase II of the Zn/Cl/sub 2/ battery development project were as follows: development of a data base on the density, conductivity, viscosity, chlorine solubility, and the zinc transference number for ZnCl/sub 2/-KCl-NaCl electrolytes; development of a model describing the hydrodynamic phenomena occurring between individual zinc and chlorine electrodes during charge; demonstration of cell electrochemical energy efficiencies of 74% for delivered capacity densities of 500 Wh/cm/sup 2/; completion of reliability studies for 100-MWh battery plants that discuss quantitatively plant availability and electricity cost in terms of module-failure rate; invention of a module-bypass switch concept that isolates a failed module in a series-connected string and thereby avoids string outage; development of a computer model for module operation that allows prediction of the effects of component changes on module performance; and accumulation of 1250 cycles - 50% of the target for battery-stack life - on a 1.7-kWh system with negligible performance degradation. 294 figures, 99 tables.
- Research Organization:
- Energy Development Associates, Madison Heights, MI (USA)
- OSTI ID:
- 5412281
- Report Number(s):
- EPRI-EM-1417
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
OFF-PEAK ENERGY STORAGE
ZINC-CHLORINE BATTERIES
RESEARCH PROGRAMS
ELECTROCHEMISTRY
ELECTROLYTES
ENERGY EFFICIENCY
EXPERIMENTAL DATA
MATHEMATICAL MODELS
PERFORMANCE
POTASSIUM CHLORIDES
RELIABILITY
SODIUM CHLORIDES
SWITCHES
ZINC CHLORIDES
ALKALI METAL COMPOUNDS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DATA
EFFICIENCY
ELECTRIC BATTERIES
ELECTRICAL EQUIPMENT
ELECTROCHEMICAL CELLS
ENERGY STORAGE
ENERGY STORAGE SYSTEMS
EQUIPMENT
HALIDES
HALOGEN COMPOUNDS
INFORMATION
METAL-GAS BATTERIES
NUMERICAL DATA
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
STORAGE
ZINC COMPOUNDS
ZINC HALIDES
250901* - Energy Storage- Batteries- Design & Development