Theoretical and experimental flow cell studies of a hydrogen-bromine fuel cell, part 1. M. S. Thesis. Final report
There is increasing interest in hydrogen-bromine fuel cells as both primary and regenerative energy storage systems. One promising design for a hydrogen-bromine fuel cell is a negative half cell having only a gas phase, which is separated by a cationic exchange membrane from a positive half cell having an aqueous electrolyte. The hydrogen gas and the aqueous bromide solution are stored external to the cell. In order to calculate the energy storage capacity and to predict and assess the performance of a single cell, the open circuit potential (OCV) must be estimated for different states of change, under various conditions. Theoretical expressions were derived to estimate the OCV of a hydrogen-bromine fuel cell. In these expressions temperature, hydrogen pressure, and bromine and hydrobromic acid concentrations were taken into consideration. Also included are the effects of the Nafion membrance separator and the various bromide complex species. Activity coefficients were taken into account in one of the expressions. The sensitivity of these parameters on the calculated OCV was studied.
- Research Organization:
- Akron Univ., OH (USA)
- OSTI ID:
- 7143607
- Report Number(s):
- N-86-29409; NASA-CR-177165; NAS-1.26:177165
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
300501* -- Fuel Cells-- Design & Development
BROMIDES
BROMINE COMPOUNDS
CHEMISTRY
CURRENT DENSITY
DESIGN
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ENERGY STORAGE
FUEL CELLS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN FUEL CELLS
MASS TRANSFER
MATHEMATICS
MEMBRANES
REGRESSION ANALYSIS
STATISTICS
STORAGE