Mathematical modeling of a zinc/bromine flow cell and a lithium/thionyl chloride primary cell
Three mathematical models are presented, one for the secondary zinc/bromine flow cell and two for the lithium/thionyl chloride primary cell. The objectives in this modeling work are to aid in understanding the physical phenomena affecting cell performance, determine methods of improving cell performance and safety, and reduce the experimental efforts needed to develop these electrochemical systems. The zinc/bromine cell model is the first such model to include a porous layer on the bromine electrode and to predict discharge behavior. The model is used to solve simultaneously the component material balances and the electroneutrality condition for the unknowns, species concentrations and the solution potential. Two models are presented for the lithium/thionyl chloride cell. The first model is a detailed one-dimensional model which is used to solve simultaneously the component material balances, Ohm's law relations, and current balance. The independent design criteria are identified from the model development. The second model presented here is a two-dimensional thermal model for the spirally would configuration of the lithium/thionyl chloride cell. This is the first model to address the effects of the spiral geometry on heat transfer in the cell.
- Research Organization:
- Texas A and M Univ., College Station, TX (USA)
- OSTI ID:
- 6120766
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
LITHIUM-COPPER CHLORIDE BATTERIES
EFFICIENCY
HEAT TRANSFER
ZINC-BROMINE BATTERIES
ELECTRICAL PROPERTIES
FUEL CELLS
MATHEMATICAL MODELS
THEORETICAL DATA
DATA
DIRECT ENERGY CONVERTERS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ENERGY TRANSFER
INFORMATION
METAL-NONMETAL BATTERIES
NUMERICAL DATA
PHYSICAL PROPERTIES
300501* - Fuel Cells- Design & Development
300502 - Fuel Cells- Performance & Testing