{
  "abstract": "Understanding electrochemical phenomena at complex liquid-solid interfaces requires linking real-time structural dynamics with atomic-scale interfacial chemistry. Here, we integrate synchrotron X-ray fluorescence and diffraction with high-resolution cryogenic electron and ion multimodal microscopy to provide a mechanistic understanding of Pt-based alloying anodes across length scales. We directly observe the initial lithiation-driven formation of Li 2 Pt and its evolution to a stable LiPt intermetallic phase during extended cycling via a solid-solution type reaction mechanism. Simultaneously, the solid-electrolyte interphase transitions from an unstable carbonate-rich to a stable LiF-dominated composition, confirmed by cryogenic scanning transmission electron microscopy-electron energy loss spectroscopy. Crucially, cryogenic atom probe tomography reveals spatially distinct compositional regimes within the alloy anode: a lithium-flux-limited, heterogeneous interfacial zone and a diffusion-controlled, homogeneous LiPt alloy bulk. This nanoscale compositional gradient rationalizes the emergent solid-solution reaction mechanism and highlights how kinetic limitations and interface dynamics govern alloy formation and electrochemical stability. Our findings establish a correlative experimental framework that directly links structural dynamics with preserved near-atomic resolution interfacial chemistry, advancing the rational design of durable alloy electrodes for next-generation energy storage.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2511.16382",
  "author_total": 10,
  "authors": [
    {
      "name": "Neil Mulcahy"
    },
    {
      "name": "Syeda Ramin Jannat"
    },
    {
      "name": "Yaqi Li"
    },
    {
      "name": "Tigran Simonian"
    },
    {
      "name": "Mariana Palos"
    },
    {
      "name": "James Douglas"
    },
    {
      "name": "Jessica Walker"
    },
    {
      "name": "Baptiste Gault"
    },
    {
      "name": "Mary Ryan"
    },
    {
      "name": "Michele Shelly Conroy"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c3yc4n3qqpxzz.bib",
  "cited_by": 0,
  "doi": "10.1103/r3tc-hr17",
  "fulltext_url": null,
  "id": "c3yc4n3qqpxzz",
  "issns": [
    "2768-5608"
  ],
  "landing_url": "https://hal.science/hal-05762221v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.cond"
    ],
    [
      "hal",
      "2.phys.cond.cm-ms"
    ],
    [
      "openalex",
      "2208|Advancements in Battery Materials"
    ]
  ],
  "openalex": "W7164052558",
  "pdf_url": "https://hal.science/hal-05762221/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-12",
  "publisher": "American Physical Society",
  "ris": "https://research.draconitic.com/paper/c3yc4n3qqpxzz.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:40Z",
      "native_id": "hal-05762221",
      "source": "hal",
      "url": "https://hal.science/hal-05762221v1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "hal:1.phys.cond",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Quantifying Phase Transformations in Alloying Anodes via in-situ Liquid Cell Hard X-ray Spectroscopy and Cryogenic Microscopy",
  "title_text": "Quantifying Phase Transformations in Alloying Anodes via in-situ Liquid Cell Hard X-ray Spectroscopy and Cryogenic Microscopy",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:40Z",
  "url": "https://research.draconitic.com/paper/c3yc4n3qqpxzz",
  "venue": "PRX Energy",
  "versions": []
}