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Title: Electrochemical Modeling and Performance of a Lithium- and Manganese-Rich Layered Transition-Metal Oxide Positive Electrode

Abstract

The impedance of a lithium- and manganese-rich layered transition-metal oxide (MR-NMC) positive electrode, specifically Li 1.2Ni 0.15Mn 0.55Co 0.1O 2, is compared to two other transition-metal layered oxide materials, specifically LiNi 0.8Co 0.15Al 0.05O 2 (NCA) and Li 1.05(Ni 1/3Co 1/3Mn 1/3) 0.95O 2 (NMC). A more detailed electrochemical impedance spectroscopy (EIS) study is conducted on the LMR-NMC electrode, which includes a range of states-of-charge (SOCs) for both current directions (i.e. charge and discharge) and two relaxation times (i.e. hours and one hundred hours) before the EIS sweep. The LMR-NMC electrode EIS studies are supported by half-cell constant current and galvanostatic intermittent titration technique (GITT) studies. Two types of electrochemical models are utilized to examine the results. The first type is a lithium ion cell electrochemical model for intercalation active material electrodes that includes a complex active material/electrolyte interfacial structure. In conclusion, the other is a lithium ion half-cell electrochemical model that focuses on the unique composite structure of the bulk LMR-NMC materials.

Authors:
 [1];  [1];  [1];  [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), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1392636
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of the Electrochemical Society; Journal Volume: 162; Journal Issue: 4
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; battery; cathode; electrochemical; lithium; modeling; oxide

Citation Formats

Dees, Dennis W., Abraham, Daniel P., Lu, Wenquan, Gallagher, Kevin G., Bettge, Martin, and Jansen, Andrew N. Electrochemical Modeling and Performance of a Lithium- and Manganese-Rich Layered Transition-Metal Oxide Positive Electrode. United States: N. p., 2015. Web. doi:10.1149/2.0231504jes.
Dees, Dennis W., Abraham, Daniel P., Lu, Wenquan, Gallagher, Kevin G., Bettge, Martin, & Jansen, Andrew N. Electrochemical Modeling and Performance of a Lithium- and Manganese-Rich Layered Transition-Metal Oxide Positive Electrode. United States. doi:10.1149/2.0231504jes.
Dees, Dennis W., Abraham, Daniel P., Lu, Wenquan, Gallagher, Kevin G., Bettge, Martin, and Jansen, Andrew N. Wed . "Electrochemical Modeling and Performance of a Lithium- and Manganese-Rich Layered Transition-Metal Oxide Positive Electrode". United States. doi:10.1149/2.0231504jes. https://www.osti.gov/servlets/purl/1392636.
@article{osti_1392636,
title = {Electrochemical Modeling and Performance of a Lithium- and Manganese-Rich Layered Transition-Metal Oxide Positive Electrode},
author = {Dees, Dennis W. and Abraham, Daniel P. and Lu, Wenquan and Gallagher, Kevin G. and Bettge, Martin and Jansen, Andrew N.},
abstractNote = {The impedance of a lithium- and manganese-rich layered transition-metal oxide (MR-NMC) positive electrode, specifically Li1.2Ni0.15Mn0.55Co0.1O2, is compared to two other transition-metal layered oxide materials, specifically LiNi0.8Co0.15Al0.05O2 (NCA) and Li1.05(Ni1/3Co1/3Mn1/3)0.95O2 (NMC). A more detailed electrochemical impedance spectroscopy (EIS) study is conducted on the LMR-NMC electrode, which includes a range of states-of-charge (SOCs) for both current directions (i.e. charge and discharge) and two relaxation times (i.e. hours and one hundred hours) before the EIS sweep. The LMR-NMC electrode EIS studies are supported by half-cell constant current and galvanostatic intermittent titration technique (GITT) studies. Two types of electrochemical models are utilized to examine the results. The first type is a lithium ion cell electrochemical model for intercalation active material electrodes that includes a complex active material/electrolyte interfacial structure. In conclusion, the other is a lithium ion half-cell electrochemical model that focuses on the unique composite structure of the bulk LMR-NMC materials.},
doi = {10.1149/2.0231504jes},
journal = {Journal of the Electrochemical Society},
number = 4,
volume = 162,
place = {United States},
year = {Wed Jan 21 00:00:00 EST 2015},
month = {Wed Jan 21 00:00:00 EST 2015}
}