{
  "abstract": "The escalating demand for high-performance dielectric energy storage materials in pulse-power systems and portable electronics calls for polymer film capacitors with high discharged energy density and breakdown strength. Conventional polymers, however, suffer severe performance degradation under concurrent thermal and electrical stress, and existing reinforcement strategies—involving inorganic nanofillers or chemical crosslinking—often compromise flexibility, introduce interfacial defects, or involve complex processing. Herein, we demonstrate that incorporating a rigid mechanically interlocked molecule, specifically an octacationic homo[2]catenane, into a polyimide matrix yields robust, crosslink-like networks through strong [π∙∙∙π] electrostatic interaction between electron-rich aromatic units of polyimide and electron-deficient homo[2]catenane. This supramolecular network simultaneously enhances breakdown strength via densified chain packing and suppresses conduction loss by forming deep electron traps derived from the high electron affinity of homo[2]catenane. The optimized PI–HC8+ composite achieves a high discharged energy density of 7.86 J/cm3 with an efficiency > 80% and sustains stable performance over 105 charge–discharge cycles at 150 °C. This research establishes mechanically interlocked molecules as a new class of functional fillers for high-performance polymer dielectrics, opening an unexplored avenue in the design of next-generation capacitive energy-storage materials.",
  "abstract_shown": true,
  "affiliations": [
    "High Purity Chemistry Science and Technology Innovation Center of Jilin Province, Centre of Analysis and Measurement, Jilin University of Chemical Technology, 45 Chengde Street, Jilin 132022, China",
    "Key Laboratory of Chemical Waste Resource Utilization of Jilin Province, School of Resources and Environment Engineering, Jilin University of Chemical Technology, 45 Chengde Street, Jilin 132022, China",
    "Electronic Information School, Wuhan University, Wuhan 430072, China"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 11,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Qiao Su",
      "orcid": "0009-0006-5865-3444"
    },
    {
      "affs": [
        1
      ],
      "name": "Yan Sun",
      "orcid": "0000-0002-3882-131X"
    },
    {
      "affs": [
        2
      ],
      "name": "Jinfeng Li",
      "orcid": "0000-0003-1413-1506"
    },
    {
      "affs": [
        0
      ],
      "name": "Benteng Ma"
    },
    {
      "affs": [
        0
      ],
      "name": "Xiao Zhang"
    },
    {
      "affs": [
        0
      ],
      "name": "Haifeng Tian"
    },
    {
      "affs": [
        0
      ],
      "name": "Yuheng Ju"
    },
    {
      "affs": [
        0
      ],
      "name": "Gao Saiwen"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhigang Liu"
    },
    {
      "affs": [
        2
      ],
      "name": "T B Zhang",
      "orcid": "0000-0003-4913-6868"
    },
    {
      "affs": [
        0
      ],
      "name": "Lin Wu",
      "orcid": "0000-0001-5638-7863"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bkedbsxhzwsvn.bib",
  "cited_by": 17,
  "doi": "10.3390/molecules31101691",
  "fulltext_url": null,
  "id": "bkedbsxhzwsvn",
  "issns": [
    "1420-3049",
    "1433-1373"
  ],
  "landing_url": "https://doi.org/10.3390/molecules31101691",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2504|Dielectric materials and actuators"
    ]
  ],
  "openalex": "W7161571658",
  "pdf_url": "https://www.mdpi.com/1420-3049/31/10/1691/pdf?version=1779669142",
  "pmcid": "PMC13209518",
  "pmid": "42197244",
  "published": "2026-05-16",
  "publisher": "Multidisciplinary Digital Publishing Institute",
  "ris": "https://research.draconitic.com/paper/bkedbsxhzwsvn.ris",
  "sources": [
    {
      "first_seen": "2026-11-07T13:21:06Z",
      "native_id": "W7161571658",
      "source": "openalex",
      "url": "https://doi.org/10.3390/molecules31101691"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2504|Dielectric materials and actuators",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Supramolecular Engineering of a Homo[2]catenane Filler Enables Polymer Composites with Exceptional High-Temperature Capacitive Energy Storage",
  "title_text": "Supramolecular Engineering of a Homo[2]catenane Filler Enables Polymer Composites with Exceptional High-Temperature Capacitive Energy Storage",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T13:21:22Z",
  "url": "https://research.draconitic.com/paper/bkedbsxhzwsvn",
  "venue": "Molecules",
  "versions": []
}