Development of a circulating zinc-bromine battery. Phase I. Final report
This report summarizes Phase I of a three phase program aimed at developing Exxon's circulating zinc-bromine battery for photovoltaic energy storage. Previous work at Exxon had developed a basic zinc-bromine system approach. This approach incorporates carbon plastic electrodes in a bipolar stack design, a circulating electrolyte with separable bromine complexes, and shunt current protection. Phase I was highlighted by the successful scale-up and demonstration of 3 and 10 kWh submodules. Two smaller demonstration batteries were delivered to Sandia for testing. Important technology improvements were demonstrated concerning shunt current protection, improved performance of low cost microporous separators, and insert injection molding of electrodes and separators. Base technology was expanded via an increased parametric testing program, materials testing and electrolyte studies. Production cost estimates were revised based on improved design concepts to project direct factory costs of $28/kWh (1980$) for large scale production of 20 kWh modules. A potential developmental plan was drafted, delineating critical development milestones. The project effort is continuing to show steady progress toward developing a deliverable 20 kWh photovoltaic battery for the completion of Phase III in 1983.
- Research Organization:
- Exxon Research and Engineering Co., Linden, NJ (USA). Advanced Energy Systems Labs.
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6775593
- Report Number(s):
- SAND-82-7022; ON: DE83006841
- Resource Relation:
- Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
PHOTOVOLTAIC POWER SUPPLIES
ZINC-BROMINE BATTERIES
DESIGN
TESTING
BATTERY SEPARATORS
CATALYSTS
COST
ELECTRODES
ELECTROLYTES
PERFORMANCE TESTING
PLANNING
POWER RANGE 1-10 KW
PRODUCTION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRONIC EQUIPMENT
EQUIPMENT
METAL-NONMETAL BATTERIES
POWER SUPPLIES
SOLAR EQUIPMENT
250901* - Energy Storage- Batteries- Design & Development
250902 - Energy Storage- Batteries- Performance & Testing
140600 - Solar Energy- Photovoltaic Power Systems