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In Situ Constructed "Poly‐Ionic Bridges" Promoting Performances of All‐Solid‐State Lithium‐Sulfur Batteries.

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Title: In Situ Constructed "Poly‐Ionic Bridges" Promoting Performances of All‐Solid‐State Lithium‐Sulfur Batteries.
Authors: Du, Kang1 (AUTHOR), Xuan, Yimin1 (AUTHOR) ymxuan@nuaa.edu.cn, Li, Di2 (AUTHOR), Li, Hong3,4,5 (AUTHOR)
Source: Advanced Energy Materials. 5/6/2026, Vol. 16 Issue 17, p1-17. 17p.
Subject Terms: *Lithium sulfur batteries, *Polysulfides, *Ionic mobility, *Solid electrolytes, *Energy density, *Polymerized ionic liquids
Abstract: All‐solid‐state lithium‐sulfur batteries (ASSLSBs) suffer from severe polysulfide shuttling and inadequate solid‐solid interfacial contact, which restrict their practical application. Enhancing interfacial ion transport and polysulfide confinement is therefore critical for achieving high energy density and enabling use in electric aviation. Herein, we develop a composite solid‐state electrolyte (DHCSE@PIL) integrating a covalent organic framework (COF) to suppress polysulfide shuttling and a poly(ionic liquid) (PIL) phase to improve interfacial ion transport. In this design, ─SO3H‐rich COF functions as functionalized fillers within the Li6.25Al0.25La3Zr2O12 (LALZO)/poly(ethylene oxide) matrix, enabling selective trapping of polysulfides, while in situ polymerization of pyrrolidinium‐based ionic liquids (Pyr13TFSI) forms PIL "poly‐ionic bridges" reinforcing electrode‐electrolyte contact. Moreover, pyrrolidinium cations optimize lithium‐salt coordination, facilitating Li+ transport and promoting a stable solid electrolyte interphase. Consequently, DHCSE@PIL exhibits an ionic conductivity of 0.74 mS cm−1 and a Li+ transference number of 0.65. Li symmetric cells deliver stable plating/stripping for over 8000 h at 3 mA cm−2, and Li|DHCSE@PIL|S full cells with high sulfur loading achieve 600 stable cycles at 0.5C. Furthermore, an Ah‐level pouch cell delivers an energy density of 482 Wh kg−1. This synergistic electrolyte/interfacial strategy provides insights into solid‐state electrolyte engineering for advanced ASSLSBs. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 193520572
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: In Situ Constructed "Poly‐Ionic Bridges" Promoting Performances of All‐Solid‐State Lithium‐Sulfur Batteries.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Du%2C+Kang%22">Du, Kang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xuan%2C+Yimin%22">Xuan, Yimin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ymxuan@nuaa.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Di%22">Li, Di</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Hong%22">Li, Hong</searchLink><relatesTo>3,4,5</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Advanced+Energy+Materials%22">Advanced Energy Materials</searchLink>. 5/6/2026, Vol. 16 Issue 17, p1-17. 17p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Lithium+sulfur+batteries%22">Lithium sulfur batteries</searchLink><br />*<searchLink fieldCode="DE" term="%22Polysulfides%22">Polysulfides</searchLink><br />*<searchLink fieldCode="DE" term="%22Ionic+mobility%22">Ionic mobility</searchLink><br />*<searchLink fieldCode="DE" term="%22Solid+electrolytes%22">Solid electrolytes</searchLink><br />*<searchLink fieldCode="DE" term="%22Energy+density%22">Energy density</searchLink><br />*<searchLink fieldCode="DE" term="%22Polymerized+ionic+liquids%22">Polymerized ionic liquids</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: All‐solid‐state lithium‐sulfur batteries (ASSLSBs) suffer from severe polysulfide shuttling and inadequate solid‐solid interfacial contact, which restrict their practical application. Enhancing interfacial ion transport and polysulfide confinement is therefore critical for achieving high energy density and enabling use in electric aviation. Herein, we develop a composite solid‐state electrolyte (DHCSE@PIL) integrating a covalent organic framework (COF) to suppress polysulfide shuttling and a poly(ionic liquid) (PIL) phase to improve interfacial ion transport. In this design, ─SO3H‐rich COF functions as functionalized fillers within the Li6.25Al0.25La3Zr2O12 (LALZO)/poly(ethylene oxide) matrix, enabling selective trapping of polysulfides, while in situ polymerization of pyrrolidinium‐based ionic liquids (Pyr13TFSI) forms PIL "poly‐ionic bridges" reinforcing electrode‐electrolyte contact. Moreover, pyrrolidinium cations optimize lithium‐salt coordination, facilitating Li+ transport and promoting a stable solid electrolyte interphase. Consequently, DHCSE@PIL exhibits an ionic conductivity of 0.74 mS cm−1 and a Li+ transference number of 0.65. Li symmetric cells deliver stable plating/stripping for over 8000 h at 3 mA cm−2, and Li|DHCSE@PIL|S full cells with high sulfur loading achieve 600 stable cycles at 0.5C. Furthermore, an Ah‐level pouch cell delivers an energy density of 482 Wh kg−1. This synergistic electrolyte/interfacial strategy provides insights into solid‐state electrolyte engineering for advanced ASSLSBs. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=193520572
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/aenm.70792
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 17
        StartPage: 1
    Subjects:
      – SubjectFull: Lithium sulfur batteries
        Type: general
      – SubjectFull: Polysulfides
        Type: general
      – SubjectFull: Ionic mobility
        Type: general
      – SubjectFull: Solid electrolytes
        Type: general
      – SubjectFull: Energy density
        Type: general
      – SubjectFull: Polymerized ionic liquids
        Type: general
    Titles:
      – TitleFull: In Situ Constructed "Poly‐Ionic Bridges" Promoting Performances of All‐Solid‐State Lithium‐Sulfur Batteries.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Du, Kang
      – PersonEntity:
          Name:
            NameFull: Xuan, Yimin
      – PersonEntity:
          Name:
            NameFull: Li, Di
      – PersonEntity:
          Name:
            NameFull: Li, Hong
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 06
              M: 05
              Text: 5/6/2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 16146832
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              Value: 16
            – Type: issue
              Value: 17
          Titles:
            – TitleFull: Advanced Energy Materials
              Type: main
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