Accelerated Lifetime Testing of High Power Lithium Titanate Oxide Batteries

Ana-Irina Stroe, Daniel-Ioan Stroe, Vaclav Knap, Swierczynski Maciej, Remus Teodorescu

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

4 Citationer (Scopus)
317 Downloads (Pure)

Abstrakt

This paper presents results obtained from extensive accelerated lifetime tests performed on a high power Lithium Titanate Oxide (LTO) battery cell. The tests were performed at elevated temperatures, with different C-rates, and for different cycle depths. The obtained results have shown a very good capacity retention and a reduced internal resistance increase (and subsequently reduced power capability decrease) even after more than 8000 cycles performed at 42.5°C. We found out that both the capacity and the internal resistance have been degrading faster when the LTO-based battery cells were cycled with a smaller C-rate (i.e., 1C) than with a higher C-rate (i.e., 3C). Moreover, based on the harvested aging results, we discovered that the capacity and not the internal resistance is the performance parameter of the tested LTO-based battery cells, which will limit their lifetime.
OriginalsprogEngelsk
TitelProceedings of the 2018 IEEE Energy Conversion Congress and Exposition (ECCE)
Antal sider7
ForlagIEEE Press
Publikationsdatosep. 2018
Sider3857-3863
ISBN (Elektronisk)978-1-4799-7312-5
DOI
StatusUdgivet - sep. 2018
BegivenhedIEEE Energy Conversion Congress & Exposition ECCE 2018 - Portland, USA
Varighed: 23 sep. 201827 sep. 2018
http://www.ieee-ecce.org/2018/

Konference

KonferenceIEEE Energy Conversion Congress & Exposition ECCE 2018
LandUSA
ByPortland
Periode23/09/201827/09/2018
Internetadresse
NavnIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

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