Flexible Material O-PAM-LiCl Hydrogel Electrolyte for Advanced Supercapacitor

Flexible Material O-PAM-LiCl Hydrogel Electrolyte for Advanced Supercapacitor | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Flexible Material O-PAM-LiCl Hydrogel Electrolyte for Advanced Supercapacitor Shaolong Liang, Yang Luo, Yanmei Xu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6276238/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract In this work, the O-PAM-LiCl hydrogel was prepared by free radical copolymerization of dimethyl sulfoxide and acrylamide, LiCl as filler, which exhibited highly recoverable stretchable property, excellent adhesive and self-healing capacity. O-PAM-LiCl hydrogel with good recovery tensile properties, good adhesion and self-healing ability (healing within 30 mins) was selected as the main research object. The results show that O-PAM-LiCl hydrogel electrolytes have excellent ionic conductivity of 1.8 S m -1 . The as-synthesized O-PAM-LiCl hydrogel electrolyte with CNTs-Ni electrodes shows a specific capacitance of 58.12 F g -1 at 50 mV s -1 in 3 g LiCl concentrations. After 2000 cycles, the capacitance retention is retained at 71.98% at a current density of 1 A g -1 . After assembling the supercapacitor using carbon nanotube electrode material, it exhibits excellent electrochemical performance upon evaluation. The introduction of LiCl resulted in the "salting in" effect, which partially destroyed the original hydrogen bonds in the hydrogels and endowed O-PAM-LiCl hydrogels with extremely high transparency and water retention properties. It was observed by SEM that the O-PAM-LiCl have loose porous structure. Furthermore, this composite hydrogel demonstrates significant potential for development. Flexible material Hydrogel supercapacitor Self-healing Ionic conducting hydrogel Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6276238","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":437508837,"identity":"6791f5e9-0686-45ef-8d7d-08af88991d69","order_by":0,"name":"Shaolong Liang","email":"","orcid":"","institution":"North China Electric Power University","correspondingAuthor":false,"prefix":"","firstName":"Shaolong","middleName":"","lastName":"Liang","suffix":""},{"id":437508838,"identity":"ec824cf7-fb2b-4425-9c78-aaafd917f2b0","order_by":1,"name":"Yang Luo","email":"","orcid":"","institution":"North China Electric Power University","correspondingAuthor":false,"prefix":"","firstName":"Yang","middleName":"","lastName":"Luo","suffix":""},{"id":437508839,"identity":"e4bf294d-f590-43e1-b4d2-042ce93132ba","order_by":2,"name":"Yanmei Xu","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA60lEQVRIie3NsarCMBSA4SOF6pC0a0pEXyES6KJ4X6VScMqgi6uC0MkHSN9CEDJXBF3kzgHvcItwX6CjwzVTEYRUN4f8yznD+TgALtcHh8J6LV4l0epdAqy+bCJMi0E1F6Muv6zL6zyDXqCTVjWzkEgKTnM1RfHPkfM8Ax7pxKPSQkIiGMXqgGItfIozmGx14nvIQnwi+A2rf8SlaN8MWTYS8yU2XwrEiPA9QxLWRKLN32KIVYqInnIqv8kgP5draiPslO4uWI2/QpmW1Wwx6gendF/ZCECH1asHQMxorawAoP37SFwul8v13B1ahkOtQID+owAAAABJRU5ErkJggg==","orcid":"","institution":"North China Electric Power University","correspondingAuthor":true,"prefix":"","firstName":"Yanmei","middleName":"","lastName":"Xu","suffix":""}],"badges":[],"createdAt":"2025-03-21 09:38:22","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-6276238/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6276238/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":93462233,"identity":"4cb4996f-9f5d-48ee-924b-a943f8b732c7","added_by":"auto","created_at":"2025-10-14 06:32:12","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":877883,"visible":true,"origin":"","legend":"","description":"","filename":"Ionics.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6276238/v1_covered_995d9dc5-13ae-4187-baf8-950300d80b3b.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Flexible Material O-PAM-LiCl Hydrogel Electrolyte for Advanced Supercapacitor","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Flexible material, Hydrogel supercapacitor, Self-healing, Ionic conducting hydrogel","lastPublishedDoi":"10.21203/rs.3.rs-6276238/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6276238/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn this work, the O-PAM-LiCl hydrogel was prepared by free radical copolymerization of dimethyl sulfoxide and acrylamide, LiCl as filler, which exhibited highly recoverable stretchable property, excellent adhesive and self-healing capacity. O-PAM-LiCl hydrogel with good recovery tensile properties, good adhesion and self-healing ability (healing within 30 mins) was selected as the main research object. The results show that O-PAM-LiCl hydrogel electrolytes have excellent ionic conductivity of 1.8 S m\u003csup\u003e-1\u003c/sup\u003e. The as-synthesized O-PAM-LiCl hydrogel electrolyte with CNTs-Ni electrodes shows a specific capacitance of 58.12 F g\u003csup\u003e-1\u003c/sup\u003e at 50 mV s\u003csup\u003e-1\u003c/sup\u003e in 3 g LiCl concentrations. After 2000 cycles, the capacitance retention is retained at 71.98% at a current density of 1 A g\u003csup\u003e-1\u003c/sup\u003e. After assembling the supercapacitor using carbon nanotube electrode material, it exhibits excellent electrochemical performance upon evaluation. The introduction of LiCl resulted in the \"salting in\" effect, which partially destroyed the original hydrogen bonds in the hydrogels and endowed O-PAM-LiCl hydrogels with extremely high transparency and water retention properties. It was observed by SEM that the O-PAM-LiCl have loose porous structure. 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