IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v5y2014i1d10.1038_ncomms4217.html
   My bibliography  Save this article

Revealing lithium–silicide phase transformations in nano-structured silicon-based lithium ion batteries via in situ NMR spectroscopy

Author

Listed:
  • K. Ogata

    (University of Cambridge)

  • E. Salager

    (University of Cambridge
    Present address: CNRS, UPR3079 CEMHTI, 1D avenue de la recherche scientifique, 45071 Orléans Cedex 2, France)

  • C.J. Kerr

    (University of Cambridge)

  • A.E. Fraser

    (University of Cambridge)

  • C. Ducati

    (University of Cambridge)

  • A.J. Morris

    (Cavendish Laboratory, University of Cambridge)

  • S. Hofmann

    (University of Cambridge)

  • C.P. Grey

    (University of Cambridge
    Stony Brook University)

Abstract

Nano-structured silicon anodes are attractive alternatives to graphitic carbons in rechargeable Li-ion batteries, owing to their extremely high capacities. Despite their advantages, numerous issues remain to be addressed, the most basic being to understand the complex kinetics and thermodynamics that control the reactions and structural rearrangements. Elucidating this necessitates real-time in situ metrologies, which are highly challenging, if the whole electrode structure is studied at an atomistic level for multiple cycles under realistic cycling conditions. Here we report that Si nanowires grown on a conducting carbon-fibre support provide a robust model battery system that can be studied by 7Li in situ NMR spectroscopy. The method allows the (de)alloying reactions of the amorphous silicides to be followed in the 2nd cycle and beyond. In combination with density-functional theory calculations, the results provide insight into the amorphous and amorphous-to-crystalline lithium–silicide transformations, particularly those at low voltages, which are highly relevant to practical cycling strategies.

Suggested Citation

  • K. Ogata & E. Salager & C.J. Kerr & A.E. Fraser & C. Ducati & A.J. Morris & S. Hofmann & C.P. Grey, 2014. "Revealing lithium–silicide phase transformations in nano-structured silicon-based lithium ion batteries via in situ NMR spectroscopy," Nature Communications, Nature, vol. 5(1), pages 1-11, May.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4217
    DOI: 10.1038/ncomms4217
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms4217
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms4217?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Jack E. N. Swallow & Michael W. Fraser & Nis-Julian H. Kneusels & Jodie F. Charlton & Christopher G. Sole & Conor M. E. Phelan & Erik Björklund & Peter Bencok & Carlos Escudero & Virginia Pérez-Dieste, 2022. "Revealing solid electrolyte interphase formation through interface-sensitive Operando X-ray absorption spectroscopy," Nature Communications, Nature, vol. 13(1), pages 1-14, December.
    2. Lyu, Chao & Song, Yankong & Zheng, Jun & Luo, Weilin & Hinds, Gareth & Li, Junfu & Wang, Lixin, 2019. "In situ monitoring of lithium-ion battery degradation using an electrochemical model," Applied Energy, Elsevier, vol. 250(C), pages 685-696.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4217. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.