{
  "abstract": "Electrides, ionic crystals in which excess electrons are delocalized within interstitial voids rather than bound to specific atomic sites, exhibit exotic physicochemical behaviors, yet their potential as electrochemical energy-storage hosts remains largely unexplored. Here, using comprehensive first-principles calculations, we demonstrate that the quasi-one-dimensional subnitride electride Ba$_3$N offers a compelling route to overcome the long-standing performance trade-offs in sodium-ion battery anodes. Spontaneous Na intercalation into the open interchain channels establishes thermodynamically stable phases, generating an exceptionally flat low-potential plateau that avoids the high-potential sloping losses of hard carbon while preserving an essential safety margin against dendrite formation. Crucially, the itinerant interstitial anionic electron sea dynamically flattens the potential landscape by suppressing site-specific orbital interactions, enabling ultrafast Na ion transport with an exceptionally low migration barrier. This work establishes a design paradigm for harnessing electride chemistry to achieve ultrafast battery electrodes.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.23391",
  "author_total": 2,
  "authors": [
    {
      "name": "Seulbi Kim"
    },
    {
      "name": "Bo Gyu Jang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/53wh06drn5rgb.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.23391",
  "fulltext_url": null,
  "id": "53wh06drn5rgb",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.23391",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "openalex",
      "2208|Advancements in Battery Materials"
    ]
  ],
  "openalex": "W7214004006",
  "pdf_url": "https://arxiv.org/pdf/2609.23391",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-20",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/53wh06drn5rgb.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:19Z",
      "native_id": "2609.23391",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.23391"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Ultralow-Barrier Ion Transport in the Subnitride Electride Ba$_3$N for High-Rate Sodium Storage",
  "title_text": "Ultralow-Barrier Ion Transport in the Subnitride Electride Ba_3N for High-Rate Sodium Storage",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:19Z",
  "url": "https://research.draconitic.com/paper/53wh06drn5rgb",
  "venue": "arXiv",
  "versions": []
}