Effect of Membrane Properties on Ion Crossover in Vanadium Redox Flow Batteries

2019 ◽  
Vol 166 (15) ◽  
pp. A3784-A3795 ◽  
Author(s):  
Yuanhui Wang ◽  
Liang Hao
Keyword(s):  
Membrane Properties ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Numerical study of effect of membrane properties on long-cycle performance of vanadium redox flow batteries

2016 ◽  
Vol 4 (4) ◽  
pp. 285-297
Author(s):  
Zi Wei ◽  
N.A. Siddique ◽  
Dong Liu ◽  
Shambhavi Sakri ◽  
Fuqiang Liu
Keyword(s):  
Numerical Study ◽  
Membrane Properties ◽  
Cycle Performance ◽  
Long Cycle ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

scholarly journals Performances of Anion-Exchange Blend Membranes on Vanadium Redox Flow Batteries

Membranes ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 31 ◽  
Author(s):  
Hyeongrae Cho ◽  
Henning Krieg ◽  
Jochen Kerres
Keyword(s):  
Anion Exchange ◽  
Exchange Capacity ◽  
Superior Performance ◽  
Membrane Properties ◽  
Redox Flow Batteries ◽  
Blend Membranes ◽  
Flow Batteries ◽  
A Charge ◽  
Exchange Membrane ◽  
Vanadium Redox

Anion exchange blend membranes (AEBMs) were prepared for use in Vanadium Redox Flow Batteries (VRFBs). These AEBMs consisted of 3 polymer components. Firstly, PBI-OO (nonfluorinated PBI) or F6-PBI (partially fluorinated PBI) were used as a matrix polymer. The second polymer, a bromomethylated PPO, was quaternized with 1,2,4,5-tetramethylimidazole (TMIm) which provided the anion exchange sites. Thirdly, a partially fluorinated polyether or a non-fluorinated poly (ether sulfone) was used as an ionical cross-linker. While the AEBMs were prepared with different combinations of the blend polymers, the same weight ratios of the three components were used. The AEBMs showed similar membrane properties such as ion exchange capacity, dimensional stability and thermal stability. For the VRFB application, comparable or better energy efficiencies were obtained when using the AEBMs compared to the commercial membranes included in this study, that is, Nafion (cation exchange membrane) and FAP 450 (anion exchange membrane). One of the blend membranes showed no capacity decay during a charge-discharge cycles test for 550 cycles run at 40 mA/cm2 indicating superior performance compared to the commercial membranes tested.

Thermo–chemical treatments based on NH3/O2 for improved graphite-based fiber electrodes in vanadium redox flow batteries

Carbon ◽  
2013 ◽  
Vol 60 ◽  
pp. 280-288 ◽  
Author(s):  
Cristina Flox ◽  
Javier Rubio-García ◽  
Marcel Skoumal ◽  
Teresa Andreu ◽  
Juan Ramón Morante
Keyword(s):  
Chemical Treatments ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Locating Shunt Currents in a Multistack System of All-Vanadium Redox Flow Batteries

2021 ◽  
Author(s):  
Han-Wen Chou ◽  
Feng-Zhi Chang ◽  
Hwa-Jou Wei ◽  
Bhupendra Singh ◽  
Amornchai Arpornwichanop ◽  
...  
Keyword(s):  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

scholarly journals Vanadium Redox Flow Batteries: A Review Oriented to Fluid-Dynamic Optimization

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 176
Author(s):  
Iñigo Aramendia ◽  
Unai Fernandez-Gamiz ◽  
Adrian Martinez-San-Vicente ◽  
Ekaitz Zulueta ◽  
Jose Manuel Lopez-Guede
Keyword(s):  
Large Scale ◽  
Numerical Models ◽  
Fluid Dynamic ◽  
Renewable Energy Sources ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Batteries ◽  
Design Flexibility ◽  
Flow Batteries ◽  
Exchange Membrane ◽  
Vanadium Redox

Large-scale energy storage systems (ESS) are nowadays growing in popularity due to the increase in the energy production by renewable energy sources, which in general have a random intermittent nature. Currently, several redox flow batteries have been presented as an alternative of the classical ESS; the scalability, design flexibility and long life cycle of the vanadium redox flow battery (VRFB) have made it to stand out. In a VRFB cell, which consists of two electrodes and an ion exchange membrane, the electrolyte flows through the electrodes where the electrochemical reactions take place. Computational Fluid Dynamics (CFD) simulations are a very powerful tool to develop feasible numerical models to enhance the performance and lifetime of VRFBs. This review aims to present and discuss the numerical models developed in this field and, particularly, to analyze different types of flow fields and patterns that can be found in the literature. The numerical studies presented in this review are a helpful tool to evaluate several key parameters important to optimize the energy systems based on redox flow technologies.

Chloride ions as an electrolyte additive for high performance vanadium redox flow batteries

2021 ◽  
Vol 289 ◽  
pp. 116690
Author(s):  
Z.H. Zhang ◽  
L. Wei ◽  
M.C. Wu ◽  
B.F. Bai ◽  
T.S. Zhao
Keyword(s):  
High Performance ◽  
Chloride Ions ◽  
Electrolyte Additive ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox

Inspired by “quenching-cracking” strategy: Structure-based design of sulfur-doped graphite felts for ultrahigh-rate vanadium redox flow batteries

2021 ◽  
Vol 39 ◽  
pp. 166-175
Author(s):  
Zeyu Xu ◽  
Mingdong Zhu ◽  
Kaiyue Zhang ◽  
Xihao Zhang ◽  
Lixin Xu ◽  
...  
Keyword(s):  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Vanadium Redox
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