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Cross-Linked Composite Gel Polymer Electrolyte Based on an H-Shaped Poly(ethylene oxide)-Poly(propylene oxide) Tetrablock Copolymer with SiO2 Nanoparticles for Solid-State Supercapacitor Applications
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Sohee | - |
dc.contributor.author | Kim, Ji Hee | - |
dc.contributor.author | Han, Jae Hee | - |
dc.contributor.author | Lee, Jang Yong | - |
dc.contributor.author | So, Soonyong | - |
dc.contributor.author | Yoon, Sang Jun | - |
dc.contributor.author | Kim, Hyung-Joong | - |
dc.contributor.author | Lee, Kyu Tae | - |
dc.contributor.author | Kim, Tae-Ho | - |
dc.date.accessioned | 2022-04-18T05:09:12Z | - |
dc.date.available | 2022-04-18T05:09:12Z | - |
dc.date.created | 2021-08-11 | - |
dc.date.created | 2021-08-11 | - |
dc.date.created | 2021-08-11 | - |
dc.date.created | 2021-08-11 | - |
dc.date.issued | 2021-07-06 | - |
dc.identifier.citation | ACS Omega, Vol.6 No.26, pp.16924-16933 | - |
dc.identifier.issn | 2470-1343 | - |
dc.identifier.other | 139107 | - |
dc.identifier.uri | https://hdl.handle.net/10371/178093 | - |
dc.description.abstract | Achieving high ionic conductivity, wide voltage window, and good mechanical strength in a single material remains a key challenge for polymer-based electrolytes for use in solid-state supercapacitors (SCs). Herein, we report cross-linked composite gel polymer electrolytes (CGPEs) based on multi-cross-linkable H-shaped poly(ethylene oxide)-poly(propylene oxide) (PEO-PPO) tetrablock copolymer precursors, SiO2 nanoparticles, and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, an ionic liquid (IL). Self-standing CGPE membranes with a high IL content were prepared using in situ cross-linking reactions between the silane groups present in the precursor and the SiO2 surface. The incorporation of an optimal amount of SiO2 increased the cross-linking density of the resulting CGPE while reducing polymer-chain ordering and, consequently, increasing both ionic conductivity and mechanical strength. As a result, the CGPE with 0.1 wt % SiO2 exhibited a high ionic conductivity (2.22 x 10(-3) S cm(-1) at 25 degrees C), good tensile strength (453 kPa), and high thermal stability up to 330 degrees C. Finally, an all-solid-state SC assembled with the prepared CGPE showed a high operating voltage (3 V), a large specific capacitance (103.9 F g(-1) at 1 A g(-1)), and excellent durability (94% capacitance retention over 10,000 charge/discharge cycles), which highlights its strong potential as a solid-state electrolyte for SCs. | - |
dc.language | 영어 | - |
dc.publisher | American Chemical Society | - |
dc.title | Cross-Linked Composite Gel Polymer Electrolyte Based on an H-Shaped Poly(ethylene oxide)-Poly(propylene oxide) Tetrablock Copolymer with SiO2 Nanoparticles for Solid-State Supercapacitor Applications | - |
dc.type | Article | - |
dc.contributor.AlternativeAuthor | 이규태 | - |
dc.identifier.doi | 10.1021/acsomega.1c01623 | - |
dc.citation.journaltitle | ACS Omega | - |
dc.identifier.wosid | 000671852300022 | - |
dc.identifier.scopusid | 2-s2.0-85110947108 | - |
dc.citation.endpage | 16933 | - |
dc.citation.number | 26 | - |
dc.citation.startpage | 16924 | - |
dc.citation.volume | 6 | - |
dc.identifier.sci | 000671852300022 | - |
dc.description.isOpenAccess | Y | - |
dc.contributor.affiliatedAuthor | Lee, Kyu Tae | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | HIGH IONIC-CONDUCTIVITY | - |
dc.subject.keywordPlus | POROUS CARBON | - |
dc.subject.keywordPlus | LIQUID | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordPlus | MEMBRANE | - |
dc.subject.keywordPlus | PVDF | - |
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