eprintid: 10194054
rev_number: 10
eprint_status: archive
userid: 699
dir: disk0/10/19/40/54
datestamp: 2024-07-02 06:09:00
lastmod: 2025-06-30 10:00:28
status_changed: 2024-07-02 06:09:00
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Galiounas, Elias
creators_name: Iacoviello, Francesco
creators_name: Mirza, Mateen
creators_name: Rasha, Lara
creators_name: Owen, Rhodri Ellis
creators_name: Robinson, James B
creators_name: Jervis, Rhodri
title: Investigations into the Dynamic Acoustic Response of Lithium-Ion Batteries During Lifetime Testing
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F43
keywords: Lithium ion batteries, Acoustic testing, Ultrasonic testing, Degradation, Chemomechanics, Acoustic sensitivity analysis
note: © The Author(s), 2024. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/
abstract: Techniques using acoustic waves to interrogate batteries are increasingly investigated in the literature due to the appeal of three main properties: they are non-destructive, relatively low cost and have acquisition rates enabling operando testing. Popular demonstrations attempt to extract degradation markers from acoustic data, by continuous monitoring, and to attribute them to degradation modes. This is founded on the premise that the speed of sound depends on mechanical properties, such as the density and stiffness. Nevertheless, additional sensitivities of an acoustic time-of-flight analysis are often neglected, leading to incomplete experiments that can overstate the capabilities of the technique. In this work, such sensitivities are quantified and the use of pulse tests instead of CCCV protocols is recommended to elucidate the concurrent dynamic evolution of temperature, voltage and acoustic signals. A degradation experiment is performed, with pulse sequences incorporated in periodic reference performance tests. Dynamic parameters are extracted from each pulse; specifically, the dynamic rise of the time-of-flight (ΔToFrise) and temperature (ΔTemprise) signals. Their evolution with degradation is traced and a statistical comparison of the main effects is performed. It is concluded that markers of degradation in the dynamic acoustic response are very subtle, masked by the effects of temperature.
date: 2024-07-12
date_type: published
publisher: The Electrochemical Society
official_url: https://doi.org/10.1149/1945-7111/ad5d21
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2291306
doi: 10.1149/1945-7111/ad5d21
lyricists_name: Robinson, James
lyricists_name: Jervis, John
lyricists_name: Owen, Rhodri
lyricists_id: ROBIN60
lyricists_id: JRJER29
lyricists_id: ROWEN61
actors_name: Robinson, James
actors_id: ROBIN60
actors_role: owner
full_text_status: public
publication: Journal of The Electrochemical Society
volume: 171
number: 7
article_number: 070514
issn: 0013-4651
citation:        Galiounas, Elias;    Iacoviello, Francesco;    Mirza, Mateen;    Rasha, Lara;    Owen, Rhodri Ellis;    Robinson, James B;    Jervis, Rhodri;      (2024)    Investigations into the Dynamic Acoustic Response of Lithium-Ion Batteries During Lifetime Testing.                   Journal of The Electrochemical Society , 171  (7)    , Article 070514.  10.1149/1945-7111/ad5d21 <https://doi.org/10.1149/1945-7111%2Fad5d21>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10194054/1/Galiounas%2Bet%2Bal_2024_J._Electrochem._Soc._10.1149_1945-7111_ad5d21.pdf