Electrolyte Lifetime in Aqueous Organic Redox Flow Batteries: A Critical Review
University of Michigan · Harvard University
Abstract
Aqueous organic redox flow batteries (RFBs) could enable widespread integration of renewable energy, but only if costs are sufficiently low. Because the levelized cost of storage for an RFB is a function of electrolyte lifetime, understanding and improving the chemical stability of active reactants in RFBs is a critical research challenge. We review known or hypothesized molecular decomposition mechanisms for all five classes of aqueous redox-active organics and organometallics for which cycling lifetime results have been reported: quinones, viologens, aza-aromatics, iron coordination complexes, and nitroxide radicals. We collect, analyze, and compare capacity fade rates from all aqueous organic electrolytes…
Citation impact
- FWCI
- 38.39
- Percentile
- 100%
- References
- 155
Authors
3Topics & keywords
- Chemistry
- Redox
- Electrolyte
- Aqueous solution
- Chemical engineering
- Flow (mathematics)
- Nanotechnology
- Inorganic chemistry
- Affordable and clean energy
Funding
- NSNational Science FoundationAwards: CBET-1914543, 1914543, DE-AC05-76RL01830, 76RL01830
- UDU.S. Department of EnergyAwards: 428977, 76RL01830, AC05-76RL01830, DE-AC05-76RL01830, DE-AC05
- IInnovationsfondenAward: 7046-00018B
- ARAdvanced Research Projects Agency - EnergyAwards: DE-AC05-76RL01830, DE-AR-0000767
- ARAdvanced Research Projects Agency
- DODivision of Chemical, Bioengineering, Environmental, and Transport SystemsAward: CBET-1914543
- PNPacific Northwest National LaboratoryAwards: DE-AC05-76RL01830, 428977, CBET-1914543, 76RL01830