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

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0341811jes· OSTI ID:1474566
 [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

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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1474566
Journal Information:
Journal of the Electrochemical Society, Vol. 165, Issue 11; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 43 works
Citation information provided by
Web of Science

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Cited By (5)

Moisture Adsorption Behavior in Anodes for Li‐Ion Batteries journal May 2019
A novel biomimetic dandelion structure-inspired carbon nanotube coating with sulfur as a lithium–sulfur battery cathode journal February 2019
Elucidation of Separator Effect on Energy Density of Li-Ion Batteries journal January 2019
Effects of Ultraviolet Light Treatment in Ambient Air on Lithium-Ion Battery Graphite and PVDF Binder journal January 2019
The Influence of Polyvinylidene Fluoride (PVDF) Binder Properties on LiNi 0.33 Co 0.33 Mn 0.33 O 2 (NMC) Electrodes Made by a Dry-Powder-Coating Process journal January 2019

Figures / Tables (10)


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