Abstract
Batteries will continue to encounter the problem of dendrite formation until a suitable solution is identified to address the problem. Dendrite formation can short circuit batteries cells, reduce their life span, voltages and cause mechanical abrasion to the cells. Batteries electrodes are part of the approaches that can be used to address these problems but depending on the fabrication of these electrodes and dimensions. Before fabricating and incorporating a real anode reactor to a fabricated ZnBr2 cell system, it was necessary to model the behaviour with injected carbon particles in between 254 microns to 354 microns and simulate the geometry in COMSOL to observe their interaction with the electrolyte. This study investigates the performances of a designed anode reactor and to observe within the reactor the effect of having a uniform and non-uniform current density distribution before the fabrication, physically charge and incorporating it to the anode-side of ZnBr2 cell system.
Highlights
Introduction ce pteCurrently, numerical modelling in any research is important
This study investigates the performances of a designed anode reactor and to observe within the reactor the effect of having a uniform and non-uniform current density distribution before the fabrication, physically charge and incorporating it to the anode-side of ZnBr2 cell system
Current density distribution is a major concern in the design of electrochemical cells in relation to the incorporated anode and cathode electrodes and circulating electrolytes [3]
Summary
Non-uniform consumption and deposition, and unreasonably high overvoltage, can result to energy loss and possibly a detrimental side-reaction, which may be the other effects that one would like to minimize. Details of the presented geometry is given in the ECS journal, on practical development of a ZnBr2 flow battery with a fluidized bed anode zinc-electrode [38]. Simulation and laboratory experiment [38] before selecting the most conductive feeder electrodes and the hydrodynamic behaviour of the examined glass beads and carbon particles within the fabricated anode-reactor. The designed and modelled high surface area of the fluidized bed anode reactor has demonstrated that it could prevent the issue of dendrites formation during the charge and discharge process. The fabrication and investigation of the anode reactor has been presented in literature [38], with details the practical development of a ZnBr2 flow battery using a fluidized bed anode zinc-electrode.
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