Projecten per jaar
Samenvatting
This paper presents the development of a semi-empirical combined lifetime model for a Nickel Manganese Cobalt Oxide (NMC) cathode and a graphite anode based cell, considered as one of the most promising candidates for the automotive industry. The development of this model was based on a thorough understanding of the degradation behavior of a 20-A h NMC cell, based on the analysis of the results of an extensive test-matrix using 146 cells. This test-matrix was designed around four impact factors: temperature (25–45 °C), Depth-of-Discharge (100–20% DoD), middle State-of-Charge (80–20% Mid-SoC) and current rates (C/3 to 2C). Gathering sufficient data for a mathematical model requires a huge time-investment, and the measurements gathered over the course of 2.5 years offer a unique insight in the aging behavior of the NMC cells used in this study. Experimental results for cycling aging indicated that the capacity loss was strongly affected by the Depth-of-Discharge and temperature. For calendar aging, an initial increase in capacity was observed when stored at low State-of-Charges, due to electrochemical milling, while the deterioration of the capacity was affected most by high storage State-Of-Charges and storage temperatures. The developed combined lifetime model showed an error of less than 5% RMS compared to the measurement results after a Worldwide harmonized Light vehicles Test (WLTC) was applied for 18 months.
Originele taal-2 | English |
---|---|
Pagina's (van-tot) | 47 - 61 |
Aantal pagina's | 15 |
Tijdschrift | Applied Energy |
Volume | 200 |
DOI's | |
Status | Published - 3 mei 2017 |
Vingerafdruk
Duik in de onderzoeksthema's van 'Combined cycling and calendar capacity fade modeling of a Nickel-Manganese-Cobalt Oxide Cell with real-life profile validation'. Samen vormen ze een unieke vingerafdruk.Projecten
- 1 Afgelopen
-
IWT639: BATTLE: Batterij modellering van lithium chemie gebaseerd op een Eclectische benadering
Omar, N., Timmermans, J. P., Van Mierlo, J., Van Mierlo, J., Van Mierlo, J., Hubin, A., Schoukens, J., Van Den Bossche, P., de Hoog, J., Nikolian, A., Fleurbaey, K., Goutam, S., Jaguemont, J. & Gopalakrishnan, R.
1/01/14 → 31/12/17
Project: Fundamenteel
Onderzoekersoutput
- 180 Citaties
- 1 Article
-
A Combined Thermo-Electric Resistance Degradation model for Nickel Manganese Cobalt Oxide based Lithium-Ion cells
De Hoog, J., Jaguemont, J., Nikolian, A., Van Mierlo, J., Van Den Bossche, P. & Omar, N., 5 mei 2018, In: Applied Thermal Engineering. 135, blz. 54-65 12 blz.Onderzoeksoutput: Article › peer review
17 Citaten (Scopus)