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Title: Characterization of Surface Free Energy of Composite Electrodes for Lithium-Ion Batteries

Abstract

One critical step in lithium-ion battery manufacturing process is the electrolyte wetting step, which usually takes up to several days at elevated temperatures, posing a distinctive bottleneck in the manufacturing process especially for large-size cells. The electrode wettability depends on both the surface tension of electrolyte and the surface free energy of electrodes. This work reports a systematic study on the characterization of surface free energy of battery electrodes and the correlation between surface free energy and electrode processing. It shows that, when switching manufacturing from conventional solvent based processing to aqueous processing, the polar component of surface free energy increases 74.1% for NMC532 electrodes and 48.2% for A12 graphite electrodes. The results provide valuable guidance for electrode processing to optimize the electrolyte wetting process, helping lower processing costs and enable higher product quality and throughput.

Authors:
 [1];  [2];  [3];  [4];  [5]; ORCiD logo [2];  [6]; ORCiD logo [6]
  1. Binghamton Univ., NY (United States). Dept. of Mechanical Engineering
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Energy and Transportation Science Division
  3. Univ. of Science and Technology Beijing, Beijing (China)
  4. Beijing Eastern-Dataphy Instruments Co. Ltd (EDIC), Beijing (China)
  5. Binghamton Univ., NY (United States). Materials Science and Engineering Program
  6. Binghamton Univ., NY (United States). Dept. of Mechanical Engineering; Binghamton Univ., NY (United States). Materials Science and Engineering Program
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1474566
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 165; Journal Issue: 11; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; electrode; lithium-ion battery; wetting

Citation Formats

Davoodabadi, Ali, Li, Jianlin, Liang, Yongfeng, Wang, Robert, Zhou, Hui, Wood, David L., Singler, Timothy J., and Jin, Congrui. Characterization of Surface Free Energy of Composite Electrodes for Lithium-Ion Batteries. United States: N. p., 2018. Web. doi:10.1149/2.0341811jes.
Davoodabadi, Ali, Li, Jianlin, Liang, Yongfeng, Wang, Robert, Zhou, Hui, Wood, David L., Singler, Timothy J., & Jin, Congrui. Characterization of Surface Free Energy of Composite Electrodes for Lithium-Ion Batteries. United States. doi:10.1149/2.0341811jes.
Davoodabadi, Ali, Li, Jianlin, Liang, Yongfeng, Wang, Robert, Zhou, Hui, Wood, David L., Singler, Timothy J., and Jin, Congrui. Mon . "Characterization of Surface Free Energy of Composite Electrodes for Lithium-Ion Batteries". United States. doi:10.1149/2.0341811jes. https://www.osti.gov/servlets/purl/1474566.
@article{osti_1474566,
title = {Characterization of Surface Free Energy of Composite Electrodes for Lithium-Ion Batteries},
author = {Davoodabadi, Ali and Li, Jianlin and Liang, Yongfeng and Wang, Robert and Zhou, Hui and Wood, David L. and Singler, Timothy J. and Jin, Congrui},
abstractNote = {One critical step in lithium-ion battery manufacturing process is the electrolyte wetting step, which usually takes up to several days at elevated temperatures, posing a distinctive bottleneck in the manufacturing process especially for large-size cells. The electrode wettability depends on both the surface tension of electrolyte and the surface free energy of electrodes. This work reports a systematic study on the characterization of surface free energy of battery electrodes and the correlation between surface free energy and electrode processing. It shows that, when switching manufacturing from conventional solvent based processing to aqueous processing, the polar component of surface free energy increases 74.1% for NMC532 electrodes and 48.2% for A12 graphite electrodes. The results provide valuable guidance for electrode processing to optimize the electrolyte wetting process, helping lower processing costs and enable higher product quality and throughput.},
doi = {10.1149/2.0341811jes},
journal = {Journal of the Electrochemical Society},
number = 11,
volume = 165,
place = {United States},
year = {2018},
month = {1}
}

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Cited by: 4 works
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Figures / Tables:

Table I. Table I.: Four types of electrodes fabricated for this study.

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