Ultra-low vanadium ion permeable electrolyte membrane for vanadium redox flow battery by pore filling of PTFE substrate

The electrochemical activity and the reversibility for electrode processes of vanadium ion redox couples are significantly enhanced on an EAGE, which is due to the functional groups of COOH and CO introduced on its surface.

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GO-modified membranes for vanadium redox flow battery

E3S Web of Conferences ◽

10.1051/e3sconf/20199001004 ◽

2019 ◽

Vol 90 ◽

pp. 01004 ◽

Cited By ~ 1

Author(s):

Saidatul Sophia ◽

Ebrahim Abouzari Lotf ◽

Arshad Ahmad ◽

Pooria Moozarm Nia ◽

Roshafima Rasit Ali

Keyword(s):

Low Cost ◽

Vanadium Redox Flow Battery ◽

Redox Flow Battery ◽

Flow Battery ◽

The Stability ◽

High Flexibility ◽

Vanadium Redox ◽

Vanadium Ion ◽

Excellent Stability

Graphene oxide (GO) has attracted tremendous attention in membrane-based separation field as it can filter ions and molecules. Recently, GO-based materials have emerged as excellent modifiers for vanadium redox flow battery (VRFB) application. Its high mechanical and chemical stability, nearly frictionless surface, high flexibility, and low cost make GO-based materials as proper materials for the membranes in VRFB. In VRFB, a membrane acts as the key component to determine the performance. Therefore, employing low vanadium ion permeability with excellent stability membrane in vanadium electrolytes is important to ensure high battery performance. Herein, recent progress of GO-modified membranes for VRFB is briefly reviewed. This review begins with current membranes used for VRFB, followed by the challenges faced by the membranes. In addition, the transport mechanism of vanadium ion and the stability properties of GO-modified membranes are also discussed to enlighten the role of GO in the modified membranes.

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Chemical Degradation of Commercial Polymer Electrolyte Membrane for Vanadium Redox Flow Battery (VRFB)

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2017.14171 ◽

2017 ◽

Vol 17 (8) ◽

pp. 5788-5791 ◽

Cited By ~ 2

Author(s):

Min-Hwa Lim ◽

Mi-Jung Park ◽

Sang-Chai Kim ◽

S. H Roh ◽

Seung-Hun Jung ◽

...

Keyword(s):

Polymer Electrolyte ◽

Polymer Electrolyte Membrane ◽

Chemical Degradation ◽

Vanadium Redox Flow Battery ◽

Redox Flow Battery ◽

Flow Battery ◽

Electrolyte Membrane ◽

Vanadium Redox

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Preparation and Properties of Sulfonated Polyimide Proton Conductive Membrane for Vanadium Redox Flow Battery

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.239-242.2779 ◽

2011 ◽

Vol 239-242 ◽

pp. 2779-2784 ◽

Cited By ~ 12

Author(s):

Ming Zhu Yue ◽

Ya Ping Zhang ◽

Yan Chen

Keyword(s):

Exchange Capacity ◽

Vanadium Redox Flow Battery ◽

Redox Flow Battery ◽

Flow Battery ◽

Chemical Structures ◽

Sulfonated Polyimide ◽

Sulfonated Polyimides ◽

Ft Ir ◽

Vanadium Redox ◽

Vanadium Ion

A series of sulfonated polyimides (SPIs) were synthesized by 1,4,5,8-naphthalene tetracarboxylic dianhydride (NTDA), 2,2′-benzidinedisulfonic acid (BDSA) and 4,4′- diaminodiphenyl ether (ODA) in m-cresol. The sulfonation degree of SPI was controlled through the ratio of sulfonated diamine to the non-sulfonated diamine, and the SPI membranes were prepared by a casting method. The chemical structures of SPI membranes were characterized by FT-IR. The properties of obtained SPI membranes were investigated, such as water uptake, ion exchange capacity, proton conductivity and permeability of vanadium ion. The proton conductivities of SPI membranes are ranged from 0.012 to 0.051 S/cm, and the permeabilities of vanadium ion are one or two orders of magnitude less than that of Nafion®117 (1.80×10-6cm2/min ). Experimental results showed that SPI membranes are potential candidates for vanadium redox flow battery.

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