Development of alkaline zinc/ferricyanide battery
The zinc/ferro-ferricyanide battery system is intended for utility load leveling and solar photovoltaic/wind applications with advantages of high cyclic efficiency, high cell voltage, random cycling without zinc strip cycles and with switching times of less than 5 ms from load to insolation or vice versa. Self-discharge has been measured at 1.6%/day. The system demonstrates excellent electrochemical performance. Cell voltages are 1.88 V OCV and 1.61 V discharge at 35 mA/cm/sup 2/ or 57 mW/cm/sup 2/ in 2N NaOH at 40/sup 0/C (Nafion N-125 separator). Cell polarization losses are almost entirely resistive and within the separator. Over 800 4-hr cycles have been demonstrated in cell of 60-cm/sup 2/ nominal area (70 mA.h/cm/sup 2/ capacity) with mean energy efficiency of 76.6 + or - 2.1 percent). Similarly, a 60-cm/sup 2/ cell has demonstrated over 220, 11 to 17 hour cycles (255 + or - 48 mA.h/cm/sup 2/ capacity) with a mean energy efficiency of 75.3 + or - 5.1 percent.
- Research Organization:
- Lockheed Palo Alto Research Laboratory
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5419702
- Report Number(s):
- CONF-830812-
- Journal Information:
- Proc., Intersoc. Energy Convers. Eng. Conf.; (United States), Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Vol. 4; ISSN PIECD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Rechargeable alkaline zinc/ferricyanide battery, Phase III. Final report, 26 October 1981-18 September 1982
Rechargeable alkaline zinc/ferricyanide battery. Final report, 29 September 1978-28 September 1979. [35 mA/cm/sup 2/, 4. 5 kW/m/sup 2/]
Related Subjects
250902* -- Energy Storage-- Batteries-- Performance & Testing
ALKALI METAL COMPOUNDS
CAPACITY
CHEMISTRY
COMPLEXES
EFFICIENCY
ELECTRIC BATTERIES
ELECTRIC DISCHARGES
ELECTRIC POTENTIAL
ELECTRIC UTILITIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRONIC EQUIPMENT
ELEMENTS
ENERGY SOURCES
EQUIPMENT
FERRICYANIDES
HYDROGEN COMPOUNDS
HYDROXIDES
INSOLATION
IRON COMPLEXES
LOAD MANAGEMENT
MANAGEMENT
METAL-NONMETAL BATTERIES
METALS
OXYGEN COMPOUNDS
PERFORMANCE
PHOTOVOLTAIC POWER SUPPLIES
POLARIZATION
POWER
POWER SUPPLIES
PUBLIC UTILITIES
RENEWABLE ENERGY SOURCES
SEPARATION EQUIPMENT
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SOLAR EQUIPMENT
TRANSITION ELEMENT COMPLEXES
WIND POWER
ZINC