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Title: Geometric and Electrochemical Characteristics of LiNi 1/3 Mn 1/3 Co 1/3 O 2 Electrode with Different Calendering Conditions

Abstract

The impact of calendering process on the geometric characteristics and electrochemical performance of LiNi1/3Mn1/3Co1/3O2 (NMC) electrode was investigated in this study. The geometric properties of NMC electrodes with different calendering conditions, such as porosity, pore size distribution, particle size distribution, specific surface area and tortuosity were calculated from the computed tomography data of the electrodes. A synchrotron transmission X-ray microscopy tomography system at the Advanced Photon Source of the Argonne National Laboratory was employed to obtain the tomography data. The geometric and electrochemical analysis show that calendering can increase the electrochemically active area, which improves rate capability. However, more calendering will result in crushing of NMC particles, which can reduce the electrode capacity at relatively high C rates. This study shows that the optimum electrochemical performance of NMC electrode at 94:3:3 weight ratio of NMC:binder:carbon black can be achieved by calendering to 3.0 g/cm3 NMC density.

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
OSTI Identifier:
1393182
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Electrochimica Acta; Journal Volume: 232
Country of Publication:
United States
Language:
English
Subject:
Li ion battery; LiNi1/3Mn1/3Co1/3O2; Calendering; Transmission X-ray microscopy; Computed tomography

Citation Formats

Kang, Huixiao, Lim, Cheolwoong, Li, Tianyi, Fu, Yongzhu, Yan, Bo, Houston, Nicole, De Andrade, Vincent, De Carlo, Francesco, and Zhu, Likun. Geometric and Electrochemical Characteristics of LiNi 1/3 Mn 1/3 Co 1/3 O 2 Electrode with Different Calendering Conditions. United States: N. p., 2017. Web. doi:10.1016/j.electacta.2017.02.151.
Kang, Huixiao, Lim, Cheolwoong, Li, Tianyi, Fu, Yongzhu, Yan, Bo, Houston, Nicole, De Andrade, Vincent, De Carlo, Francesco, & Zhu, Likun. Geometric and Electrochemical Characteristics of LiNi 1/3 Mn 1/3 Co 1/3 O 2 Electrode with Different Calendering Conditions. United States. doi:10.1016/j.electacta.2017.02.151.
Kang, Huixiao, Lim, Cheolwoong, Li, Tianyi, Fu, Yongzhu, Yan, Bo, Houston, Nicole, De Andrade, Vincent, De Carlo, Francesco, and Zhu, Likun. Sat . "Geometric and Electrochemical Characteristics of LiNi 1/3 Mn 1/3 Co 1/3 O 2 Electrode with Different Calendering Conditions". United States. doi:10.1016/j.electacta.2017.02.151.
@article{osti_1393182,
title = {Geometric and Electrochemical Characteristics of LiNi 1/3 Mn 1/3 Co 1/3 O 2 Electrode with Different Calendering Conditions},
author = {Kang, Huixiao and Lim, Cheolwoong and Li, Tianyi and Fu, Yongzhu and Yan, Bo and Houston, Nicole and De Andrade, Vincent and De Carlo, Francesco and Zhu, Likun},
abstractNote = {The impact of calendering process on the geometric characteristics and electrochemical performance of LiNi1/3Mn1/3Co1/3O2 (NMC) electrode was investigated in this study. The geometric properties of NMC electrodes with different calendering conditions, such as porosity, pore size distribution, particle size distribution, specific surface area and tortuosity were calculated from the computed tomography data of the electrodes. A synchrotron transmission X-ray microscopy tomography system at the Advanced Photon Source of the Argonne National Laboratory was employed to obtain the tomography data. The geometric and electrochemical analysis show that calendering can increase the electrochemically active area, which improves rate capability. However, more calendering will result in crushing of NMC particles, which can reduce the electrode capacity at relatively high C rates. This study shows that the optimum electrochemical performance of NMC electrode at 94:3:3 weight ratio of NMC:binder:carbon black can be achieved by calendering to 3.0 g/cm3 NMC density.},
doi = {10.1016/j.electacta.2017.02.151},
journal = {Electrochimica Acta},
number = ,
volume = 232,
place = {United States},
year = {Sat Apr 01 00:00:00 EDT 2017},
month = {Sat Apr 01 00:00:00 EDT 2017}
}