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
- Country of Publication:
- United States
- Language:
- English
Similar Records
Recent progress on Exxon's zinc-bromine battery technology
Development of zinc-bromine batteries for utility energy storage. Interim report, September 1978-August 1979
Related Subjects
140600 -- Solar Energy-- Photovoltaic Power Systems
25 ENERGY STORAGE
250901* -- Energy Storage-- Batteries-- Design & Development
250902 -- Energy Storage-- Batteries-- Performance & Testing
BATTERY SEPARATORS
CATALYSTS
COST
DESIGN
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELECTRONIC EQUIPMENT
EQUIPMENT
METAL-NONMETAL BATTERIES
PERFORMANCE TESTING
PHOTOVOLTAIC POWER SUPPLIES
PLANNING
POWER RANGE 1-10 KW
POWER SUPPLIES
PRODUCTION
SOLAR EQUIPMENT
TESTING
ZINC-BROMINE BATTERIES