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Design of experiments for optimizing the calendering process in Li-ion battery manufacturing
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Hidalgo, M. F. V., Apachitei, G., Dogaru, D., Faraji-Niri, M., Lain, M., Copley, M. and Marco, James (2023) Design of experiments for optimizing the calendering process in Li-ion battery manufacturing. Journal of Power Sources, 573 . 233091. doi:10.1016/j.jpowsour.2023.233091 ISSN 0378-7753.
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Official URL: http://doi.org/10.1016/j.jpowsour.2023.233091
Abstract
Calendering is a key yet complex manufacturing process that has varied effects on the Li-ion battery cell performance. Finding the optimal compaction can require many experiments if using the traditional one-factor-at-a-time method, which would be both complex and resource intensive. Design of Experiments (DoE) coupled with modeling via multiple linear regression (MLR) are used in this study to better understand the complex process of electrode calendering. The factors studied in this report are rolling temperature, post-calendered porosity, and mass loading of NMC622 and their effect on the electrochemical performance. The exact combinations of these factors which will create an information-rich data set are prepared using DoE. MLR is then used to extract this information in the form of understanding how each factor (individually and in combination with other ones) affect the electrochemical performance of the cells. Via this approach, the physical and statistical significance of each factor is quantified. Furthermore, the models are used to determine which combinations of factors result in an optimal electrochemical performance. Overall, this study highlights the use of both DoE to highlight the most important regions in the design space to conduct experiments while MLR is used to model and understand the complex system (calendering).
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
Library of Congress Subject Headings (LCSH): | Lithium ion batteries, Lithium ion batteries -- Materials, Storage batteries -- Design and construction, Lithium cells, Electric batteries -- Materials, Energy storage -- Materials, Power electronics -- Materials | ||||||||
Journal or Publication Title: | Journal of Power Sources | ||||||||
Publisher: | Elsevier S.A. | ||||||||
ISSN: | 0378-7753 | ||||||||
Official Date: | 30 July 2023 | ||||||||
Dates: |
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Volume: | 573 | ||||||||
Article Number: | 233091 | ||||||||
DOI: | 10.1016/j.jpowsour.2023.233091 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 5 May 2023 | ||||||||
Date of first compliant Open Access: | 11 May 2023 | ||||||||
RIOXX Funder/Project Grant: |
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