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Understanding the effect of coating-drying operating variables on electrode physical and electrochemical properties of lithium-ion batteries
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Roman Ramirez, Luis, Apachitei, Geanina, Faraji Niri, Mona, Lain, Mike J., Widanage, Widanalage Dhammika and Marco, James (2021) Understanding the effect of coating-drying operating variables on electrode physical and electrochemical properties of lithium-ion batteries. Journal of Power Sources, 516 . 230689. doi:10.1016/j.jpowsour.2021.230689 ISSN 0378-7753.
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Official URL: https://doi.org/10.1016/j.jpowsour.2021.230689
Abstract
The effect of coating and drying process variables (comma bar gap, web speed, coating ratio, drying temperature and drying air speed) on NMC622 cathode physical properties (thickness, mass loading and porosity) and electrochemical properties (gravimetric capacity, volumetric capacity and rate performance) is studied by a design of experiments approach. Electrochemical performance is assessed on half coin cells at C-rates from C/20 up to 10C. The statistical analysis of the data reveals that the cathode physical properties are mainly affected by comma bar gap and coating ratio. The electrochemical properties also show high correlations between comma bar gap and coating ratio for some C-rates. As a second evaluation, the relationship between the cathode half-cell physical characteristics with the electrochemical performance is studied through multiple linear regression analysis. A correlation mainly between coating weight and the electrochemical properties is found. Empirical linear models representing the relationship between the output and input variables are provided, showing correlation coefficients
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QC Physics Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TS Manufactures |
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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, Electrodes, Cathodes | ||||||||
Journal or Publication Title: | Journal of Power Sources | ||||||||
Publisher: | Elsevier | ||||||||
ISSN: | 0378-7753 | ||||||||
Official Date: | 31 December 2021 | ||||||||
Dates: |
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Volume: | 516 | ||||||||
Article Number: | 230689 | ||||||||
DOI: | 10.1016/j.jpowsour.2021.230689 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 2 November 2021 | ||||||||
Date of first compliant Open Access: | 30 October 2022 | ||||||||
RIOXX Funder/Project Grant: |
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