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A transient model of vanadium redox flow battery

Ozgoli, H. A ; Sharif University of Technology | 2016

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  1. Type of Document: Article
  2. DOI: 10.1051/meca/2015065
  3. Publisher: EDP Sciences , 2016
  4. Abstract:
  5. It has been attempted to gain a new viewpoint in transient cell modeling of vanadium redox flow battery. This has been achieved by considering electrochemical relations along with conceptual electrical circuit of this kind of battery. The redox flow battery is one of the best rechargeable batteries because of its capability to average loads and output power sources. A model of transient behavior is presented in this paper. The transient features are considered as the most remarkable characteristics of the battery. The chemical reactions, fluid flow, and electrical circuit of the structure govern the dynamics. The transient behavior of the redox flow battery based on chemical reactions is discussed in this paper. According to the model responses, the relation between electrolyte concentration changes and the battery cell with current density has been studied in transient state and the rate of state of charge changes has been achieved. Sensitivity analysis based on the presented model indicated that the battery voltage highly depends on the concentration amount of reactants. In addition the negative effect of the operation temperature increases on one hand and the effect of electrolyte fluid flow rate on the other hand have been noticed on output voltage of the cell
  6. Keywords:
  7. Vanadium redox flow battery ; Battery management systems ; Charging (batteries) ; Chemical reactions ; Concentration (process) ; Electric batteries ; Electric network parameters ; Electrodes ; Electrolytes ; Flow of fluids ; Networks (circuits) ; Reconfigurable hardware ; Redox reactions ; Secondary batteries ; Sensitivity analysis ; Vanadium ; Electrolyte concentration ; Electrolyte solutions ; Operation temperature ; Porous electrodes ; Transient behavior ; Transient features ; Transient model ; Flow batteries
  8. Source: Mechanics and Industry ; Volume 17, Issue 4 , 2016 ; 22577777 (ISSN)
  9. URL: https://www.mechanics-industry.org/articles/meca/abs/2016/04/mi140174/mi140174.html