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Here, we report a photo\u2010curable, chemically recyclable solid polymer electrolyte platform built on a bio\u2010derived difunctional cross\u2010linker, poly(ethylene glycol) bis(lipoate) (PEG\u2010LP\n                    <jats:sub>2<\/jats:sub>\n                    ), prepared from naturally occurring \u03b1\u2010lipoic acid. Visible\u2010light\u2010driven copolymerization of PEG\u2010LP\n                    <jats:sub>2<\/jats:sub>\n                    with poly(ethylene glycol) methyl ether acrylate in the presence of an ionic liquid (BMITFSI, 45 wt%) yields flexible, ionically conductive membranes (1.30 mS cm\n                    <jats:sup>\u22121<\/jats:sup>\n                    at room temperature). The dynamic disulfide cross\u2010linked network imparts both solid\u2010like mechanical integrity and chemical recyclability. When assembled into symmetric supercapacitors, the optimized SPE\u201065 formulation retains \u223c70% of its initial specific capacitance after 6000 galvanostatic cycles at 100\u00a0mA g\n                    <jats:sup>\u22121<\/jats:sup>\n                    . Complete catalyst\u2010assisted depolymerization is achieved using 1,8\u2010diazabicyclo[5.4.0]undec\u20107\u2010ene (DBU) under mild, ambient conditions, and subsequent repolymerization regenerates ionically conductive membranes retaining \u223c70% of the original conductivity (0.86 mS cm\n                    <jats:sup>\u22121<\/jats:sup>\n                    ). Together, the bio\u2010derived lipoate cross\u2010linker, catalytically assisted depolymerization, and regenerated electrochemical performance constitute a sustainable and recyclable SPE manufacture platform for next\u2010generation supercapacitor applications.\n                  <\/jats:p>","DOI":"10.1002\/anie.3540036","type":"journal-article","created":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T10:45:48Z","timestamp":1786963548000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Closed\u2010Loop Recyclable Solid Polymer Electrolytes via Dynamic Lipoate Cross\u2010Linking"],"prefix":"10.1002","volume":"65","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-9975-4721","authenticated-orcid":false,"given":"Qian","family":"Huang","sequence":"first","affiliation":[{"name":"Cluster for Advanced Macromolecular Design School of Chemical Engineering University of New South Wales  Sydney New South Wales 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Biochemistry University of California  Santa Barbara California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9951-851X","authenticated-orcid":false,"given":"Craig J.","family":"Hawker","sequence":"additional","affiliation":[{"name":"Materials Department and Department of Chemistry and Biochemistry University of California  Santa Barbara California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5244-9836","authenticated-orcid":false,"given":"Dipan","family":"Kundu","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering UNSW Sydney  Sydney New South Wales Australia"},{"name":"School of Mechanical and Manufacturing Engineering UNSW Sydney  Sydney New South Wales 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