High Oxidizing Stability and Ion Selectivity of Hybrid Polymer Electrolyte Membrane for Improving Electrochemical Performance in Vanadium Redox Flow Battery

Thong, Pham Tan; Thangarasu, Sadhasivam; Lim, Hankwon; Jin, Chang-Soo; Ryi, Shin-Kun; Park, Won-Shik; Kim, Hee Tak; Roh, Sung‐Hee; Jung, Ho‐Young

doi:10.1149/2.1071810jes

Cited by 22 publications

(17 citation statements)

References 31 publications

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“…Recently,G Ow as blended with sulfonated poly(2,6-dimethyl-1,4phenylene oxide), affording aS PPO/GO hybrid membrane for VRFBs (Figure 6e). [71] As expected, the chemical stability of the hybrid membrane was obviously improved compared with that of the pure SPPO.C oncretely speaking, the hydrogen bonds between GO and SPPO deactivated the lone pair electrons on the ether oxygen, and the steric bulk of the GO nanosheets hindered the VO 2 + ions.T of urther enhance the proton conductivity,GOnanosheets were functionalized with sulfonic acid groups (Figure 6f). [72] Given that added introduction of hydrophilic sulfonic groups might cause excessive swelling of IEMs,a cid-base interactions were introduced by Shi et al,b ym odifying GO with polyaniline or amines and blending them with SPEEK.…”

Section: Incorporation Of Nanomaterialssupporting

confidence: 65%

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A Chemistry and Microstructure Perspective on Ion‐Conducting Membranes for Redox Flow Batteries

et al. 2021

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Redox flow batteries (RFBs) are among the most promising grid‐scale energy storage technologies. However, the development of RFBs with high round‐trip efficiency, high rate capability, and long cycle life for practical applications is highly restricted by the lack of appropriate ion‐conducting membranes. Promising RFB membranes should separate positive and negative species completely and conduct balancing ions smoothly. Specific systems must meet additional requirements, such as high chemical stability in corrosive electrolytes, good resistance to organic solvents in nonaqueous systems, and excellent mechanical strength and flexibility. These rigorous requirements put high demands on the membrane design, essentially the chemistry and microstructure associated with ion transport channels. In this Review, we summarize the design rationale of recently reported RFB membranes at the molecular level, with an emphasis on new chemistry, novel microstructures, and innovative fabrication strategies. Future challenges and potential research opportunities within this field are also discussed.

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Section: Incorporation Of Nanomaterialssupporting

confidence: 65%

“…with permission from the AmericanC hemical Society. ( e) Reproduced from ref [71]. with permission from The Electrochemical Society.…”

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confidence: 99%

A Chemistry and Microstructure Perspective on Ion‐Conducting Membranes for Redox Flow Batteries

et al. 2021

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“…The cost proportion of the system is stated to be even lower at 10–15% in [ 65 ]. In relation to the stack costs, however, a cost proportion of about 40% has been assumed for the use of Nafion [ 52 , 65 , 86 , 92 , 185 , 193 , 197 ], whereby also cost ranges of 30–50% of the stack were mentioned [ 144 ]. The high specific cost of Nafion (500–800 USD m −2 ) [ 86 , 189 ] is reported disparately, since with decreasing mass per square meter and different membrane thickness (50.8 µm to 183 µm) as well as different purchase quantities, the price varies.…”

Section: Membrane Costsmentioning

confidence: 99%

Polymer Membranes for All-Vanadium Redox Flow Batteries: A Review

et al. 2021

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Redox flow batteries such as the all-vanadium redox flow battery (VRFB) are a technical solution for storing fluctuating renewable energies on a large scale. The optimization of cells regarding performance, cycle stability as well as cost reduction are the main areas of research which aim to enable more environmentally friendly energy conversion, especially for stationary applications. As a critical component of the electrochemical cell, the membrane influences battery performance, cycle stability, initial investment and maintenance costs. This review provides an overview about flow-battery targeted membranes in the past years (1995–2020). More than 200 membrane samples are sorted into fluoro-carbons, hydro-carbons or N-heterocycles according to the basic polymer used. Furthermore, the common description in membrane technology regarding the membrane structure is applied, whereby the samples are categorized as dense homogeneous, dense heterogeneous, symmetrical or asymmetrically porous. Moreover, these properties as well as the efficiencies achieved from VRFB cycling tests are discussed, e.g., membrane samples of fluoro-carbons, hydro-carbons and N-heterocycles as a function of current density. Membrane properties taken into consideration include membrane thickness, ion-exchange capacity, water uptake and vanadium-ion diffusion. The data on cycle stability and costs of commercial membranes, as well as membrane developments, are compared. Overall, this investigation shows that dense anion-exchange membranes (AEM) and N-heterocycle-based membranes, especially poly(benzimidazole) (PBI) membranes, are suitable for VRFB requiring low self-discharge. Symmetric and asymmetric porous membranes, as well as cation-exchange membranes (CEM) enable VRFB operation at high current densities. Amphoteric ion-exchange membranes (AIEM) and dense heterogeneous CEM are the choice for operation mode with the highest energy efficiency.

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“…[1][2][3][4] In a simple design, a large quantity of electrical energy/power (multi-MWhs/MWs) can be stored in RFBs, which may resolve the issue of the intermittent and random nature of renewable energy. Redox flow battery (RFB) is one of the most promising ESSs and has attracted intense attention owing to its high efficiency, long cycle life, low environmental impact, intrinsic safety, easy scalability, flexible operation, and fast response time.…”

Section: Introductionmentioning

confidence: 99%

“…Redox flow battery (RFB) is one of the most promising ESSs and has attracted intense attention owing to its high efficiency, long cycle life, low environmental impact, intrinsic safety, easy scalability, flexible operation, and fast response time. [1][2][3][4] In a simple design, a large quantity of electrical energy/power (multi-MWhs/MWs) can be stored in RFBs, which may resolve the issue of the intermittent and random nature of renewable energy. An RFB is a reversible ESS which realizes the conversion between electrical energy and chemical energy through the corresponding redox reactions of the active species during the charge-discharge process.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Nafion series membranes on the performance of iron‐chromium redox flow battery

Sun

Zhang

2019

Int J Energy Res

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Summary To boost the performance of the iron‐chromium redox flow battery (ICRFB), opting an appropriate proton exchange membrane (PEM) as the core component of ICRFB is of great importance. For the purpose, in this paper, various widely adopted commercial Nafion membranes with a different thickness of 50 μm (Nafion 212, N212), 126 μm (N115), and 178 μm (N117) are chosen for the sake of evaluating the influence of membrane thickness on the ICRFB single‐cell performance. Physicochemical properties, electrolyte utilization, cell efficiency, long‐term cycling stability, and the self‐discharge process of ICRFBs based on a series of Nafion membranes are contrasted comprehensively. The cycling test of ICRFBs is carried out under the current density range of 40 to 120 mA/cm2 for the charge‐discharge process. As a result of the good equilibrium of membrane resistance and electro‐active species permeability, Nafion 212 membrane exhibits the highest electrolyte utilization and energy efficiency during the operation, accompanied by the lowest overpotential. In the final part, the selection of Nafion membrane thickness was optimized on the basis of single‐cell performance and the overall cost of the system.

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High Oxidizing Stability and Ion Selectivity of Hybrid Polymer Electrolyte Membrane for Improving Electrochemical Performance in Vanadium Redox Flow Battery

Cited by 22 publications

References 31 publications

A Chemistry and Microstructure Perspective on Ion‐Conducting Membranes for Redox Flow Batteries

A Chemistry and Microstructure Perspective on Ion‐Conducting Membranes for Redox Flow Batteries

Polymer Membranes for All-Vanadium Redox Flow Batteries: A Review

Investigation of Nafion series membranes on the performance of iron‐chromium redox flow battery

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