{
  "abstract": "The electrochemical performance of composite cathodes in all-solid-state batteries is governed by local reaction and transport processes; however, directly linking cell-level electrochemical responses to individual activematerial particles and local microstructural features remains challenging. Here, we investigate a composite cathode in sulfide-based all-solid-state cells using correlative microscopy combining Kelvin probe force microscopy (KPFM) and scanning impedance microscopy (SIM). Following high-voltage degradation, KPFM revealed that some cathode active-material particles exhibited smaller changes in contact potential difference (CPD) between the charged and discharged states or deviations from the overall trend. Furthermore, a particle-by-particle correlation was observed between the charge–discharge CPD response and the corresponding low-frequency local AC voltage response measured by SIM. Analysis of the SIM spatial distributions using a transmission line model further provided a framework for interpreting changes in the relative contributions of electronic transport, ionic transport, and cathode active material/solid electrolyte interfacial impedance between the charged and discharged states and following high-voltage degradation. This approach provides a basis for linking particle-level reaction heterogeneity to local transport networks in composite cathodes.",
  "abstract_shown": true,
  "affiliations": [
    "National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31 Midorigaoka, Ikeda, Osaka, Japan, 563-8577"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Yuji Yamagishi",
      "orcid": "0000-0001-6269-2426"
    },
    {
      "affs": [
        0
      ],
      "name": "Zyun Siroma"
    },
    {
      "affs": [
        0
      ],
      "name": "Hirotada Gamo"
    },
    {
      "affs": [
        0
      ],
      "name": "Yusuke Morino"
    },
    {
      "affs": [
        0
      ],
      "name": "Naoya Ishida"
    },
    {
      "affs": [
        0
      ],
      "name": "Hikaru Sano"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4m69rqfnsvt8m.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv.15009947/v1",
  "fulltext_url": null,
  "id": "4m69rqfnsvt8m",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15009947/v1",
  "language": null,
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2208|Advanced Battery Materials and Technologies"
    ]
  ],
  "openalex": "W7220721574",
  "pdf_url": "https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15009947/v1",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-05",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/4m69rqfnsvt8m.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:22Z",
      "native_id": "10.26434/chemrxiv.15009947",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15009947/v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "source:chemrxiv",
      "subfield": "general"
    }
  ],
  "title": "Correlative Potential and Impedance Microscopy Reveals Particle-Level Degradation and Transport Heterogeneity in Solid-State Composite Cathodes",
  "title_text": "Correlative Potential and Impedance Microscopy Reveals Particle-Level Degradation and Transport Heterogeneity in Solid-State Composite Cathodes",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:22Z",
  "url": "https://research.draconitic.com/paper/4m69rqfnsvt8m",
  "venue": "ChemRxiv",
  "versions": []
}