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Development and validation of chemistry agnostic flow battery cost performance model and application to nonaqueous electrolyte systems
Author(s) -
Crawford Alasdair,
Thomsen Edwin,
Reed David,
Stephenson David,
Sprenkle Vincent,
Liu Jun,
Viswanathan Vilayanur
Publication year - 2016
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.3526
Subject(s) - electrolyte , flow battery , battery (electricity) , volumetric flow rate , electrode , power density , current (fluid) , flow (mathematics) , duty cycle , stack (abstract data type) , current density , chemistry , analytical chemistry (journal) , process engineering , power (physics) , voltage , computer science , mechanics , electrical engineering , thermodynamics , engineering , chromatography , physics , quantum mechanics , programming language
Summary A chemistry agnostic cost performance model is described for a nonaqueous flow battery. The model predicts flow battery performance by estimating the active reaction zone thickness at each electrode as a function of current density, state of charge, and flow rate using measured data for electrode kinetics, electrolyte conductivity, and electrode‐specific surface area. Validation of the model is conducted using a 4 kW stack data at various current densities and flow rates. This model is used to estimate the performance of a nonaqueous flow battery with electrode and electrolyte properties used from the literature. The optimized cost for this system is estimated for various power and energy levels using component costs provided by vendors. The model allows optimization of design parameters such as electrode thickness, area, flow path design, and operating parameters such as power density, flow rate, and operating SOC range for various application duty cycles. A parametric analysis is done to identify components and electrode/electrolyte properties with the highest impact on system cost for various application durations. A pathway to 100$ kW h −1 for the storage system is identified. Copyright © 2016 John Wiley & Sons, Ltd.