A sulfonated polyethylene–styrene cation exchange membrane: a potential separator material in vanadium redox flow battery applications

Nagarale, Rajaram K.; Sreenath, Sooraj; Pawar, Chetan M.; Bavdane, Priyanka P.; Nikumbe, Devendra Y.

doi:10.1039/d1ya00059d

Cited by 22 publications

(33 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has a pronounced effect on the vanadium ion permeability. The diffusion coefficient ( K ) and permeability rate ( K / L ) of the different vanadium ion species across the membrane were measured by a two-compartment cell with equal ionic concentration on either side as mentioned in our earlier report . A freshly prepared PFAEM membrane was used to measure the diffusion coefficient and permeability rate of V 3+ , VO 2+ , and VO 2 + species.…”

Section: Resultsmentioning

confidence: 99%

“…The cycling stability of the membrane was evaluated by operating the VRFB at 150 mA cm –2 for 50 charge/discharge cycles. The open circuit potential (OCV) of the membrane was obtained by charging the battery till 1.8 V at 50 mA cm –2 and allowing it to self-discharge till the voltage reached 1.0 V. Coulombic, voltage, and energy efficiencies were calculated as reported using eqs – Coulombic 0.25em efficiency 0.25em ( CE ) = Q discharge Q charge × 100 voltage 0.25em efficiency 0.25em ( VE ) = V discharge V charge × 100 energy 0.25em efficiency 0.25em ( EE ) = ( CE × VE ) × 100 …”

Section: Methodsmentioning

confidence: 99%

“…The excellent dimensional stability of the PFAEM was better than those of the commercial membranes evaluated by Skyllas-Kazacos et al 37 and our previous work. 38 The experiment was concluded with measurement of electrochemical properties, and data were compared with the membrane (PFAEM) before chemical treatment (Table 4). The observed change in IEC, conductivity, and transport number values with respect to before and after chemical stability experiments was attributed to the irreversible adsorption of vanadium ions onto the membrane matrix.…”

Section: Stability Of the Pfaem In Vomentioning

confidence: 99%

“…allowing it to self-discharge till the voltage reached 1.0 V. Coulombic, voltage, and energy efficiencies were calculated as reported using eqs 10−12 38. …”

mentioning

confidence: 99%

See 3 more Smart Citations

High-Capacity Retention Thermally Reinforced Pore-Filled Anion Exchange Membrane for All-Vanadium Flow Batteries

Sreenath

Pawar

et al. 2022

ACS Appl. Energy Mater.

Self Cite

View full text Add to dashboard Cite

In this work, we report a thermally annealed porefilled anion exchange membrane (PFAEM) with excellent mechanical and chemical stability effected by a polypropylene support and impressive electrochemical properties induced by a pore-filled poly (4-vinyl pyridine) matrix followed by its successful demonstration in vanadium redox flow batteries (VRFBs). As expected, a low swelling ratio synergized with Donnan exclusion resulted in low vanadium ion diffusion. The calculated permeability rates for V +3 , VO 2+ , and VO 2 + were 4.80 × 10 −7 , 7.11 × 10 −7 , and 9.4 × 10 −7 dm s −1 , respectively. An exceptionally low dimension change (∼4.5%) was observed in 1.6 M VO 2 + /2 M H 2 SO 4 solution over 15 days. The assembled VRFB exhibited a Coulombic efficiency (CE) of 98.6% and energy efficiency (EE) of 69.2% over 50 charge/discharge cycles at 150 mA cm −2 with a high-capacity retention of 70% and average capacity decay of 0.63% per cycle. The observed peak power density was 340 mW cm −2 . Finally, the autopsy of the membrane after battery performance suggested negligible depreciation in mechanical and electrochemical properties, confirming its potential applicability in VRFBs.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Stability Of the Pfaem In Vomentioning

confidence: 99%

“…allowing it to self-discharge till the voltage reached 1.0 V. Coulombic, voltage, and energy efficiencies were calculated as reported using eqs 10−12 38. …”

mentioning

confidence: 99%

See 2 more Smart Citations

High-Capacity Retention Thermally Reinforced Pore-Filled Anion Exchange Membrane for All-Vanadium Flow Batteries

Sreenath

Pawar

et al. 2022

ACS Appl. Energy Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…26 A high water content in the membrane negatively affects the dimensional stability, whereas a low water content restricts its ion movements. 27 Gravimetrically estimated water content using eq 2 for IDB, IBP, and IFP was found to be 28.2%, 22.4%, and 18.6% respectively (Figure 4a). The obatined water content was good enough for the smooth ionic transport without compromise in dimensional stability.…”

Section: Determination Of the Degree Of Sulfonation (Ds)mentioning

confidence: 99%

N-Sulfonated Poly(arylene-oxindole) for Vanadium Redox Flow Battery Applications

Bavdane

Sreenath

Nikumbe

et al. 2022

ACS Appl. Energy Mater.

Self Cite

View full text Add to dashboard Cite

We describe the synthesis of N-sulfonated poly(arylene-oxindole) by metal-free superacid, denoted IDB, IBP, and IFP by polycondensation of isatin with 1,4-diphenoxybenzene, biphenyl, and fluorene, monomer, respectively. All three polymers provide flexible transparent films with high decomposition temperatures (400 to 500 °C) as well as good mechanical and oxidative stability. The physiochemical and electrochemical characteristics of the IDB membrane were better, in comparison to IBP and IFP. The presence of an ether linkage in IDB facilitates the formation of a highly negative charge amide ion, resulting in a high degree of N-sulfonation. To evaluate performance in VRFB, relevant physical properties and stability in a highly oxidative environment (2.1 M H2SO4 and 1.6 M VO2 +) were evaluated. In a single cell VRFB test, the peak power density for IDB, IBP, and IFP was 275 mW cm–2, 240 mW cm–2, and 225 mW cm–2 respectively, at 300 mA cm–2 current density. The IDB membrane showed 97% Coulombic, 68% energy, and 66% voltage efficiencies at 100 mA cm–2 over 200 charge/discharge cycles. In comparison to Nafion 117 in identical experimental settings, the OCV studies validated the low rate of self-discharge, showing the IDB membrane is better suited for VRFB applications.

show abstract

Stability of monoradical cation dimer of viologen derivatives in aqueous redox flow battery

Nikumbe,

Bavdane,

Sreenath

et al. 2024

J Appl Electrochem

View full text Add to dashboard Cite

A sulfonated polyethylene–styrene cation exchange membrane: a potential separator material in vanadium redox flow battery applications

Abstract: We report on the synthesis and characterization of polyethylene-styrene-divinylbenzene-based interpolymer cation exchange membrane (ICEM) and its applicability as a separator in vanadium redox flow battery (VRFB). ICEM preparation involved radical...

Cited by 22 publications

References 61 publications

High-Capacity Retention Thermally Reinforced Pore-Filled Anion Exchange Membrane for All-Vanadium Flow Batteries

High-Capacity Retention Thermally Reinforced Pore-Filled Anion Exchange Membrane for All-Vanadium Flow Batteries

N-Sulfonated Poly(arylene-oxindole) for Vanadium Redox Flow Battery Applications

Stability of monoradical cation dimer of viologen derivatives in aqueous redox flow battery

Contact Info

Product

Resources

About