Jump to main content
Jump to site search


Virtual unrolling of spirally-wound lithium-ion cells for correlative degradation studies and predictive fault detection

Author affiliations

Abstract

A spirally-wound LG 18650 MJ1 lithium-ion battery was imaged in 3D before and after 1061 cycles using X-ray computed tomography. The battery's capacity had faded to 79% of its initial value and some of that fade was attributed to delamination in the innermost region of the ‘jelly-roll’ structure. A method for virtually unrolling the jelly-roll and analysing it in different coordinates is presented. The method allows efficient comparison of the position and shape of the electrodes at different times and highlights imperfections present in the jelly-roll before cycling which were shown to nucleate the delamination of the electrode.

Graphical abstract: Virtual unrolling of spirally-wound lithium-ion cells for correlative degradation studies and predictive fault detection

Back to tab navigation

Supplementary files

Publication details

The article was received on 12 Jul 2019, accepted on 15 Aug 2019 and first published on 19 Aug 2019


Article type: Communication
DOI: 10.1039/C9SE00500E
Sustainable Energy Fuels, 2019, Advance Article
  • Open access: Creative Commons BY license
  •   Request permissions

    Virtual unrolling of spirally-wound lithium-ion cells for correlative degradation studies and predictive fault detection

    M. D. R. Kok, J. B. Robinson, J. S. Weaving, A. Jnawali, M. Pham, F. Iacoviello, D. J. L. Brett and P. R. Shearing, Sustainable Energy Fuels, 2019, Advance Article , DOI: 10.1039/C9SE00500E

    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