Crosslinkable sulfonated poly (diallyl-bisphenol ether ether ketone) membranes for vanadium redox flow battery application

Zhang, Hongzhang; Zhang, Huamin; Li, Xianfeng; Mai, Zhensheng; Wei, Wenping; Li, Yun

doi:10.1016/j.jpowsour.2012.06.030

Cited by 51 publications

(21 citation statements)

References 28 publications

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“…Obviously, the oxidative ability of the anolyte is stronger than that of catholyte; thus, the SPI-PDMS membrane facing the anode is oxidized more significantly. Similar experimental results were also reported by Zhang et al 20 The dispersion of PDMS in the SPI-PDMS membrane was also investigated by energy-dispersive spectroscopy and the result is shown in Figure 2b. The element Si (red markers), originating from PDMS, and the element N (green markers), originating from the imide ring, are both uniformly distributed at the surface of SPI-PDMS membrane, further indicating that the PDMS was successfully introduced into SPI-PDMS membrane.…”

Section: Characterization Of the Membranesupporting

confidence: 84%

Sulfonated poly(imide-siloxane) membrane as a low vanadium ion permeable separator for a vanadium redox flow battery

Zhang

Huang

et al. 2015

Polym J

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A sulfonated poly(imide-siloxane) (SPI-PDMS) membrane was prepared and evaluated for its performance in a vanadium redox flow battery (VRFB). Fourier transform infrared spectroscopy analysis verified the successful synthesis of SPI-PDMS, and scanning electron microscopy images and energy-dispersive spectroscopy results illustrated the homogeneity of the membrane. The chemical stability of the SPI-PDMS membrane was superior to that of the pristine sulfonated polyimide membrane. The as-prepared SPI-PDMS membrane showed an order-of-magnitude lower permeability of VO 2+ ion (1.92 × 10 − 7 cm 2 min − 1 ) in contrast to Nafion 117 (17.1 × 10 − 7 cm 2 min − 1 ) and it possessed a much longer self-discharge time (550 h above 1.3 V) than Nafion 117 (65 h above 1.3 V). The SPI-PDMS-containing VRFB exhibited higher coulombic efficiency (98.50%-99.10%) at current densities ranging from 20 to 80 mA cm − 2 than that of Nafion 117 (80.6%-94.8%). At current densities lower than 70 mA cm − 2 , the energy efficiency of the SPI-PDMS-containing VRFB was higher than that of Nafion 117. Cyclic chargedischarge testing demonstrated that the VRFB containing the SPI-PDMS membrane had good operational stability. Overall, this low-cost SPI-PDMS membrane exhibits excellent battery performance and has considerable potential for applications in VRFBs. INTRODUCTIONThe vanadium redox flow battery (VRFB) has been attracting increasing attention as a promising candidate for large-scale energy storage systems because of its advantageous features, including long life, high reliability, non-pollution, low cost and high efficiency. 1-3 The proton-conductive membrane is an important component of VRFBs. The membrane must separate the catholyte and the anolyte, while allowing the passage of protons to form a circuit. The ideal protonconductive membrane should have a low permeability to vanadium ions, high proton conductivity, good chemical stability, strong mechanical integrity and low cost. 4 To date, the perfluorinated sulfonic acid membranes such as Nafion membranes (Dupont Co., Wilmington, DE, USA) have been widely used in VRFB systems, owing to their high proton conductivity and excellent chemical stability. However, Nafion membranes also possess disadvantages such as high vanadium ion permeability and cost, which limit their largescale commercial application in VRFB systems. 5 Consequently, a series of novel proton-conductive membranes with lower vanadium ion permeability and cost have been developed for VRFB applications such as sulfonated poly(phenylsulfone), 6 sulfonated poly(ether ether ketone) 7 and sulfonated polysulfone 8 membranes.Sulfonated polyimide (SPI) is one of the most promising potential candidates for VRFB membranes, because the polyimide can form a compact microstructure to control vanadium ion permeability, and

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Section: Characterization Of the Membranesupporting

confidence: 84%

Sulfonated poly(imide-siloxane) membrane as a low vanadium ion permeable separator for a vanadium redox flow battery

Zhang

Huang

et al. 2015

Polym J

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“…1), a new peak at 4.64 ppm was assigned to the methylene protons in the chloromethyl groups [34]. As mentioned in the experimental part, degree of substitution (DS) of chloromethylated poly(phenyl sulfone) was calculated from 1 H NMR spectroscopy by taking the integral ratio of eCH 2 Cl (H(2)) at 4.64 ppm to the poly(phenyl sulfone) backbone protons at 7.90 ppm (H (11,12,13,14)) which were intact during the chloromethylation reaction, and the calculation equation was shown as following:…”

Section: Membrane Synthesis and Propertiesmentioning

confidence: 99%

“…where A 2 was the integration value of H(2), A 11,12,13,14 was the integration value of H (11,12,13,14), respectively.…”

Section: Membrane Synthesis and Propertiesmentioning

confidence: 99%

Poly(phenyl sulfone) anion exchange membranes with pyridinium groups for vanadium redox flow battery applications

Zhang

Wang

et al. 2015

Journal of Power Sources

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“…When the crosslinkable groups were introduced into the backbone of high sulfonated SPEEK, [47] the chemical and mechanical stabilities of membranes were strengthened. When the crosslinkable groups were introduced into the backbone of high sulfonated SPEEK, [47] the chemical and mechanical stabilities of membranes were strengthened.…”

Section: Design and Optimization Of Chemical Structuresmentioning

confidence: 99%

The Structure–Activity Relationship in Membranes for Vanadium Redox Flow Batteries

Jiang

Xiang

et al. 2019

Advanced Sustainable Systems

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IntroductionWith the rapid increase of consumption of fossil fuels and the consequent environment pollution, there is an urgent need for the development and effective utilization of renewable energy sources like wind, solar, biomass, etc. However, these renewable energy sources are intermittent in nature, leading to the conflict between the seasonal and unstable electricity generation and requirement of the continuous and stable power supply for the end application. Thereby, energy storage Vanadium redox flow batteries (VRFBs) are regarded as one of the most promising electrochemical technologies for grid-connected renewable energy storage systems. The performance of VRFBs, however, strongly depends on the membrane, one of the key components of VRFBs with critical dual functions of promotion of diffusion of active species (H + , H 3 O + , SO 4 2−, or SO 4 H − ) and inhibition of crossover of vanadium ions. This is intrinsically related to the microstructure of membranes. For example, large and connected ionic clusters or pores in membranes are favorable for the ion transfer, but detrimental to the ion selectivity. While small and isolated hydrophilic ion clusters or pores suppress the water uptake and ion transfer, the decreased swelling ratio would enhance chemical stability of membrane. Thus, comprehensive strategies are required to realize the optimal balance between the ion selectivity, proton conductivity, and chemical stability. This review focuses on the effects of microstructure of membranes on the ion transfer and the chemical stability, including introduction of the rigid groups, electron-withdrawing groups, and hydrophobic backbones, are reviewed. The prospect of the development of membranes with high ion selectivity and high-performance VRFBs is discussed.

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Crosslinkable sulfonated poly (diallyl-bisphenol ether ether ketone) membranes for vanadium redox flow battery application

Cited by 51 publications

References 28 publications

Sulfonated poly(imide-siloxane) membrane as a low vanadium ion permeable separator for a vanadium redox flow battery

Sulfonated poly(imide-siloxane) membrane as a low vanadium ion permeable separator for a vanadium redox flow battery

Poly(phenyl sulfone) anion exchange membranes with pyridinium groups for vanadium redox flow battery applications

The Structure–Activity Relationship in Membranes for Vanadium Redox Flow Batteries

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