Jump to main content
Jump to site search

Issue 12, 2019
Previous Article Next Article

Spatially resolved ultrasound diagnostics of Li-ion battery electrodes

Author affiliations

Abstract

The importance of reliable battery diagnostic systems has grown substantially in recent years as a result of the use of high power Li-ion battery packs in an increasingly diverse range of applications. Here, spatially resolved ultrasound acoustic measurements are used to analyse the condition of Li-ion electrodes. Ultrasonic measurements are performed on a commercial mobile phone battery over the full operating voltage window with the lithiation and delithiation of electrodes observed at 36 locations on the surface of the cell. X-ray computed tomography was performed on the cell to ascertain the internal architecture and features that enabled the architecture of the battery to be correlated with the acoustic signature. Analyses of the acoustic signals obtained suggest that the anode and cathode layers can be identified by examining the change in attenuation associated with the charging process. It is also seen that expansions of the electrode layers are inhibited by the presence of the anode current collecting tab in the battery which leads to spatial inhomogeneities in the expansion of the electrode layer examined within the cell.

Graphical abstract: Spatially resolved ultrasound diagnostics of Li-ion battery electrodes

Back to tab navigation

Publication details

The article was received on 16 Nov 2018, accepted on 18 Dec 2018 and first published on 18 Dec 2018


Article type: Paper
DOI: 10.1039/C8CP07098A
Phys. Chem. Chem. Phys., 2019,21, 6354-6361
  • Open access: Creative Commons BY license
  •   Request permissions

    Spatially resolved ultrasound diagnostics of Li-ion battery electrodes

    J. B. Robinson, M. Maier, G. Alster, T. Compton, D. J. L. Brett and P. R. Shearing, Phys. Chem. Chem. Phys., 2019, 21, 6354
    DOI: 10.1039/C8CP07098A

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements