{
  "abstract": "Binders, though typically only a few weight percent of a battery electrode, play an outsized role in determining cell performance and sustainability. Water-soluble green binders have emerged as eco-friendly alternatives that enable aqueous slurry processing and easier recyclability. In this work, we leverage biopolymer-based binders (CMC/SBR, Guar Gum and ι-carrageenan) in sodium-ion battery electrodes (Prussian white cathodes and hard carbon anodes) to demonstrate a new paradigm of sustainable electrode design. Our findings highlight that biopolymer binders (Guar Gum and ι-carrageenan) can effectively “glue” sodium-ion battery electrodes together forming a robust structural network and refine the composition of the passivation layer on electrode interface through the functional groups (hydroxyl, carboxyl, and sulfate bonding). By replacing conventional binders with these green alternatives, high-capacity retention and rate capability were achieved when paired with hard carbon electrodes, all with the added benefits of aqueous processability and sustainability.",
  "abstract_shown": true,
  "affiliations": [
    "School of Metallurgy and Materials",
    "University of Birmingham",
    "School of Chemistry",
    "Warwick Manufacturing Group (WMG), University of Warwick, Gibbet Hill Road, Coventry, UK, CV4 7AL",
    "Dept. of Physics, University of Warwick, Gibbet Hill Road, Coventry, UK, CV4 7AL"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 11,
  "authors": [
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Lin Chen"
    },
    {
      "affs": [
        3
      ],
      "name": "Faduma Maddar"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Tengfei Song"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Brij Kishore"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Subha Samanta"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Sam Hare"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Hiroto Kitaguchi"
    },
    {
      "affs": [
        4
      ],
      "name": "Marc Walker"
    },
    {
      "affs": [
        3
      ],
      "name": "Ivana Hasa"
    },
    {
      "affs": [
        2,
        1
      ],
      "name": "Peter Slater"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Emma Kendrick",
      "orcid": "0000-0002-4219-964X"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/f8c3dqhhqy8t5.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv.15010776/v1",
  "fulltext_url": null,
  "id": "f8c3dqhhqy8t5",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010776/v1",
  "language": null,
  "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",
      "2208|Advancements in Battery Materials"
    ]
  ],
  "openalex": "W7223135063",
  "pdf_url": "https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15010776/v1",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/f8c3dqhhqy8t5.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:24Z",
      "native_id": "10.26434/chemrxiv.15010776",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010776/v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "source:chemrxiv",
      "subfield": "general"
    }
  ],
  "title": "Functional-Group Effects in Biopolymer Binders for Sodium-Ion Battery Electrodes: Interfaces, Rheology, and Electrochemical Performance",
  "title_text": "Functional-Group Effects in Biopolymer Binders for Sodium-Ion Battery Electrodes: Interfaces, Rheology, and Electrochemical Performance",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:24Z",
  "url": "https://research.draconitic.com/paper/f8c3dqhhqy8t5",
  "venue": "ChemRxiv",
  "versions": []
}