A nanotwinned-alloy strategy enables fast sodium deposition dynamics

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{
  "updated": "2025-01-16T15:22:39.665949+00:00", 
  "metadata": {
    "version": 1, 
    "conceptrecid": "2512", 
    "_oai": {
      "id": "oai:materialscloud.org:2513"
    }, 
    "owner": 1606, 
    "contributors": [
      {
        "familyname": "Zou", 
        "affiliations": [
          "State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China"
        ], 
        "givennames": "Guodong"
      }, 
      {
        "familyname": "Wang", 
        "givennames": "Jinming", 
        "affiliations": [
          "State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China", 
          "Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore"
        ], 
        "email": "wangjinming1996@gmail.com"
      }, 
      {
        "familyname": "Sun", 
        "affiliations": [
          "State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China"
        ], 
        "givennames": "Yong"
      }, 
      {
        "familyname": "Yang", 
        "affiliations": [
          "State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China"
        ], 
        "givennames": "Weihao"
      }, 
      {
        "familyname": "Niu", 
        "affiliations": [
          "State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China"
        ], 
        "givennames": "Tingting"
      }, 
      {
        "familyname": "Li", 
        "affiliations": [
          "State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China"
        ], 
        "givennames": "Jinyu"
      }, 
      {
        "familyname": "Ren", 
        "affiliations": [
          "Laboratory of Spinal Cord Injury and Rehabilitation, Chengde Medical University, Chengde 067000, P.R.China"
        ], 
        "givennames": "Liqun"
      }, 
      {
        "familyname": "Seh", 
        "affiliations": [
          "Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore"
        ], 
        "givennames": "Zhi Wei"
      }, 
      {
        "familyname": "Peng", 
        "givennames": "Qiuming", 
        "affiliations": [
          "State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R. China"
        ], 
        "email": "pengqiuming@ysu.edu.cn"
      }
    ], 
    "edited_by": 576, 
    "title": "A nanotwinned-alloy strategy enables fast sodium deposition dynamics", 
    "status": "published", 
    "license_addendum": null, 
    "keywords": [
      "Sodium metal battery", 
      "Nanotwinned alloy", 
      "Dynamics"
    ], 
    "is_last": true, 
    "id": "2513", 
    "description": "Sodium (Na) metal batteries are considered promising solutions for next-generation electrochemical energy storage because of their low costs and high energy densities. However, the slow Na dynamics result in unfavourable Na deposition and dendrite growth, which compromise cycling performance. Here we propose a nanotwinned alloy strategy prepared by high-pressure solid solution followed by Joule-heating treatment to address sluggish Na dynamics, achieving homogeneous Na deposition. By employing cost-effective Al-Si alloys for validation, Si solubility of 10 wt.% is extended through a high-pressure solid solution, and nanotwinned-Si particles, with a volume fraction of 82.7%, are subsequently formed through Joule-heating treatment. The sodiophilic nanotwinned-Si sites exhibit a high diffusion rate, which reduces the nondimensional electrochemical Damk\u00f6hler number to far below 1, shifting the diffusion-controlled deposition behavior to reaction-controlled deposition. This transition facilitates spherical Na deposition and dendrite-free growth, allowing a symmetric cell to achieve stable Na plating/stripping over 5300 hours at 5 mA cm\u207b\u00b2 with a cumulative capacity of 13.25 Ah cm\u207b\u00b2. This strategy is also demonstrated in another CuAg system with nanotwinned Ag structures.The record contains data that support the findings described in the publication.", 
    "mcid": "2025.14", 
    "doi": "10.24435/materialscloud:r1-e1", 
    "publication_date": "Jan 16, 2025, 16:22:39", 
    "license": "Creative Commons Attribution 4.0 International", 
    "_files": [
      {
        "checksum": "md5:edc774ba906b931a3e9b9759cd2e0195", 
        "size": 5531433, 
        "description": "The initial and final configurations of Na deposition on Al, HPA-AlSi and HPJH-AlSi using molecular dynamics simulations.", 
        "key": "Molecular dynamics data.zip"
      }, 
      {
        "checksum": "md5:750f69aade1649c1fc14f5de509eb798", 
        "size": 39969, 
        "description": "This dataset contains data related to the optimized configurations for the diffusion pathway and calculated energy profile of Na along the diffusion path of Na on the Al, Si and nanotwin Si.  Moreover, it includes binding energies of different crystal facets of Al, Si and nanotwin Si with Na atoms.", 
        "key": "Density functional theory data.zip"
      }
    ], 
    "references": [
      {
        "type": "Journal reference", 
        "citation": "G.Zou, J. wang and Y. Sun et al, Nat. Commun.(2025)", 
        "doi": ""
      }
    ]
  }, 
  "id": "2513", 
  "created": "2024-12-22T08:59:19.569031+00:00", 
  "revision": 10
}