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Highly efficient vanadium redox flow battery enabled by low permeability membrane regulated by sulfonated polyarylethersulfones.

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Title: Highly efficient vanadium redox flow battery enabled by low permeability membrane regulated by sulfonated polyarylethersulfones.
Authors: Su, Yi1,2 (AUTHOR), Zeng, Pengjin1,2 (AUTHOR), Sun, Fei1,2 (AUTHOR) sunfei_92@zstu.edu.cn, Li, Zhaoning1,2 (AUTHOR), Yu, Yuan1,3 (AUTHOR), Li, Danyang2,4 (AUTHOR), Guo, Yuhai1,2 (AUTHOR) gyh@zstu.edu.cn
Source: Journal of Materials Science. May2026, Vol. 61 Issue 17, p11998-12010. 13p.
Subjects: Vanadium redox battery, Polyethersulfone, Energy density, Ion-permeable membranes, Energy conversion, Biological membranes, Proton conductivity, Membrane permeability (Biology)
Abstract: To advance the large-scale application of vanadium redox flow batteries (VRFBs), developing proton-exchange membranes (PEMs) that combine low cost with high performance has become a key research focus. This research designed and constructed a low permeability PEM regulated by sulfonated polyethersulfones (SPAES), successfully achieving a balance between chemical stability and conductivity. The S1K1 PEM prepared by blending SPAES and SPEEK (Sulfonated Poly (ether ether ketone)) in equal mass ratio exhibits outstanding comprehensive performance. Its ion selectivity (8732.74 S·min−1·cm−3) and proton conductivity (392.1 mS·cm−1) are both higher than those of N212 (20.12 S·min−1·cm−3, 213.9 mS·cm−1), with a vanadium permeability of only 0.499 × 10−8 cm−2·min. Moreover, the VRFB assembled with the S1K1 PEM maintained stable energy efficiency around 70% after 100 cycles at 80 mA·cm−2 and sustained an operable voltage (> 0.8 V) for 445 h. At 350 mA·cm−2, the maximum power density reached 973.51 mW·cm−2 (compared to 916.2 mW·cm−2 for N212). This blended PEM effectively integrates the material advantages of SPAES and SPEEK, offering both high proton conductivity and excellent vanadium resistance properties. Additionally, its simple preparation process and low raw material costs demonstrate promising application prospects, with the potential to accelerate the commercialization of VRFBs. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Highly efficient vanadium redox flow battery enabled by low permeability membrane regulated by sulfonated polyarylethersulfones.
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  Data: <searchLink fieldCode="AR" term="%22Su%2C+Yi%22">Su, Yi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zeng%2C+Pengjin%22">Zeng, Pengjin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Fei%22">Sun, Fei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> sunfei_92@zstu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Zhaoning%22">Li, Zhaoning</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Yuan%22">Yu, Yuan</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Danyang%22">Li, Danyang</searchLink><relatesTo>2,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Yuhai%22">Guo, Yuhai</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> gyh@zstu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%22">Journal of Materials Science</searchLink>. May2026, Vol. 61 Issue 17, p11998-12010. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Vanadium+redox+battery%22">Vanadium redox battery</searchLink><br /><searchLink fieldCode="DE" term="%22Polyethersulfone%22">Polyethersulfone</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+density%22">Energy density</searchLink><br /><searchLink fieldCode="DE" term="%22Ion-permeable+membranes%22">Ion-permeable membranes</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+conversion%22">Energy conversion</searchLink><br /><searchLink fieldCode="DE" term="%22Biological+membranes%22">Biological membranes</searchLink><br /><searchLink fieldCode="DE" term="%22Proton+conductivity%22">Proton conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Membrane+permeability+%28Biology%29%22">Membrane permeability (Biology)</searchLink>
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  Label: Abstract
  Group: Ab
  Data: To advance the large-scale application of vanadium redox flow batteries (VRFBs), developing proton-exchange membranes (PEMs) that combine low cost with high performance has become a key research focus. This research designed and constructed a low permeability PEM regulated by sulfonated polyethersulfones (SPAES), successfully achieving a balance between chemical stability and conductivity. The S1K1 PEM prepared by blending SPAES and SPEEK (Sulfonated Poly (ether ether ketone)) in equal mass ratio exhibits outstanding comprehensive performance. Its ion selectivity (8732.74 S·min−1·cm−3) and proton conductivity (392.1 mS·cm−1) are both higher than those of N212 (20.12 S·min−1·cm−3, 213.9 mS·cm−1), with a vanadium permeability of only 0.499 × 10−8 cm−2·min. Moreover, the VRFB assembled with the S1K1 PEM maintained stable energy efficiency around 70% after 100 cycles at 80 mA·cm−2 and sustained an operable voltage (> 0.8 V) for 445 h. At 350 mA·cm−2, the maximum power density reached 973.51 mW·cm−2 (compared to 916.2 mW·cm−2 for N212). This blended PEM effectively integrates the material advantages of SPAES and SPEEK, offering both high proton conductivity and excellent vanadium resistance properties. Additionally, its simple preparation process and low raw material costs demonstrate promising application prospects, with the potential to accelerate the commercialization of VRFBs. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1007/s10853-026-12551-z
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 13
        StartPage: 11998
    Subjects:
      – SubjectFull: Vanadium redox battery
        Type: general
      – SubjectFull: Polyethersulfone
        Type: general
      – SubjectFull: Energy density
        Type: general
      – SubjectFull: Ion-permeable membranes
        Type: general
      – SubjectFull: Energy conversion
        Type: general
      – SubjectFull: Biological membranes
        Type: general
      – SubjectFull: Proton conductivity
        Type: general
      – SubjectFull: Membrane permeability (Biology)
        Type: general
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      – TitleFull: Highly efficient vanadium redox flow battery enabled by low permeability membrane regulated by sulfonated polyarylethersulfones.
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            NameFull: Su, Yi
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            NameFull: Zeng, Pengjin
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            NameFull: Sun, Fei
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            NameFull: Li, Zhaoning
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            NameFull: Yu, Yuan
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            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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