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Title: Modeling and analysis of solvent removal during Li-ion battery electrode drying

Abstract

In this paper, we study the design aspects and process dynamics of solvent removal from Lithium-ion battery electrode coatings. For this, we use a continuum level mathematical model to describe the physical phenomenon of cathode drying involving coupled simultaneous heat and mass transfer with phase change. Our results indicate that around 90% of solvent is removed in less than half of the overall drying time. We study the effect of varying temperature and air velocity on the drying process. We show that the overall drying energy can be reduced by at least 50% by using a multi-zone drying process. Also, the peak solvent flux can be reduced by at least 40%. We further present the effect of using an aqueous solvent instead of N-Methyl-2-pyrrolidone (NMP) in electrode drying. Our results indicate that Water dries nearly 4.5 times faster as compared to NMP and requires nearly 10 times less overall drying energy per kg of solvent.

Authors:
ORCiD logo [1];  [1];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1431318
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 378; Journal Issue: C; Journal ID: ISSN 0378-7753
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Lithium-ion battery; NMP vs water solvent; electrode drying; mathematical modeling; Drying; Li-ion battery cathode; Heat and mass transfer

Citation Formats

Susarla, Naresh, Ahmed, Shabbir, and Dees, Dennis W. Modeling and analysis of solvent removal during Li-ion battery electrode drying. United States: N. p., 2018. Web. doi:10.1016/j.jpowsour.2018.01.007.
Susarla, Naresh, Ahmed, Shabbir, & Dees, Dennis W. Modeling and analysis of solvent removal during Li-ion battery electrode drying. United States. doi:10.1016/j.jpowsour.2018.01.007.
Susarla, Naresh, Ahmed, Shabbir, and Dees, Dennis W. Fri . "Modeling and analysis of solvent removal during Li-ion battery electrode drying". United States. doi:10.1016/j.jpowsour.2018.01.007.
@article{osti_1431318,
title = {Modeling and analysis of solvent removal during Li-ion battery electrode drying},
author = {Susarla, Naresh and Ahmed, Shabbir and Dees, Dennis W.},
abstractNote = {In this paper, we study the design aspects and process dynamics of solvent removal from Lithium-ion battery electrode coatings. For this, we use a continuum level mathematical model to describe the physical phenomenon of cathode drying involving coupled simultaneous heat and mass transfer with phase change. Our results indicate that around 90% of solvent is removed in less than half of the overall drying time. We study the effect of varying temperature and air velocity on the drying process. We show that the overall drying energy can be reduced by at least 50% by using a multi-zone drying process. Also, the peak solvent flux can be reduced by at least 40%. We further present the effect of using an aqueous solvent instead of N-Methyl-2-pyrrolidone (NMP) in electrode drying. Our results indicate that Water dries nearly 4.5 times faster as compared to NMP and requires nearly 10 times less overall drying energy per kg of solvent.},
doi = {10.1016/j.jpowsour.2018.01.007},
journal = {Journal of Power Sources},
number = C,
volume = 378,
place = {United States},
year = {Fri Jan 12 00:00:00 EST 2018},
month = {Fri Jan 12 00:00:00 EST 2018}
}

Journal Article:
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