Accelerated Lifetime Testing of High Power Lithium Titanate Oxide Batteries
| Autor: | Daniel-loan Stroe, Ana-Irina Stroe, Vaclav Knap, Remus Teodorescu, Maciej Swierczynski |
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| Rok vydání: | 2018 |
| Předmět: |
Battery (electricity)
Materials science Lithium Titanate Oxide 020209 energy Capacity Fade Oxide 02 engineering and technology Internal resistance Accelerated aging Lithium-ion battery Power (physics) Resistance Increase chemistry.chemical_compound chemistry Lithium-Ion Battery Accelerated lifetime testing 0202 electrical engineering electronic engineering information engineering Composite material Lithium titanate Accelerated Aging |
| Zdroj: | Stroe, A-I, Stroe, D-I, Knap, V, Maciej, S & Teodorescu, R 2018, Accelerated Lifetime Testing of High Power Lithium Titanate Oxide Batteries . in Proceedings of the 2018 IEEE Energy Conversion Congress and Exposition (ECCE) . IEEE Press, IEEE Energy Conversion Congress and Exposition, pp. 3857-3863, IEEE Energy Conversion Congress & Exposition ECCE 2018, Portland, Oregon, United States, 23/09/2018 . https://doi.org/10.1109/ECCE.2018.8557416 |
| DOI: | 10.1109/ecce.2018.8557416 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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