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Title: Layered oxide, graphite and silicon-graphite electrodes for Lithium-ion cells: Effect of electrolyte composition and cycling windows

Abstract

The electrochemical performance of cells with a Li 1.03(Ni 0.5Co 0.2Mn 0.3) 0.97O 2 (NCM523) positive electrode and a blended silicon-graphite (Si-Gr) negative electrode are investigated using various electrolyte compositions and voltage cycling windows. Voltage profiles of the blended Si-Gr electrode show a superposition of graphite potential plateaus on a sloped Si profile with a large potential hysteresis. The effect of this hysteresis is seen in the cell impedance versus voltage data, which are distinctly different for the charge and discharge cycles. We confirm that the addition of compounds, such as vinylene carbonate (VC) and fluoroethylene carbonate (FEC) to the baseline 1.2 M LiPF 6 in ethylene carbonate (EC): ethyl methyl carbonate (EMC) (3:7 w/w) electrolyte, improves cell capacity retention with higher retention seen at higher additive contents. We show that reducing the lower cutoff voltage (LCV) of full cells to 2.5 V increases the Si-Gr electrode potential to 1.12 V vs. Li/Li +; this relatively-high delithiation potential correlates with the lower capacity retention displayed by the cell. Hence, we show that raising the upper cutoff voltage (UCV) can increase cell energy density without significantly altering capacity retention over 100 charge discharge cycles.

Authors:
 [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)
OSTI Identifier:
1339644
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 164; Journal Issue: 1; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 25 ENERGY STORAGE; NCM523 oxide; silicon-graphite blends; cycling windows; electrolyte compositions; fluoroethylene carbonate; reference electrode; vinylene carbonate

Citation Formats

Klett, Matilda, Gilbert, James A., Pupek, Krzysztof Z., Trask, Stephen E., and Abraham, Daniel P. Layered oxide, graphite and silicon-graphite electrodes for Lithium-ion cells: Effect of electrolyte composition and cycling windows. United States: N. p., 2016. Web. doi:10.1149/2.0131701jes.
Klett, Matilda, Gilbert, James A., Pupek, Krzysztof Z., Trask, Stephen E., & Abraham, Daniel P. Layered oxide, graphite and silicon-graphite electrodes for Lithium-ion cells: Effect of electrolyte composition and cycling windows. United States. https://doi.org/10.1149/2.0131701jes
Klett, Matilda, Gilbert, James A., Pupek, Krzysztof Z., Trask, Stephen E., and Abraham, Daniel P. Fri . "Layered oxide, graphite and silicon-graphite electrodes for Lithium-ion cells: Effect of electrolyte composition and cycling windows". United States. https://doi.org/10.1149/2.0131701jes. https://www.osti.gov/servlets/purl/1339644.
@article{osti_1339644,
title = {Layered oxide, graphite and silicon-graphite electrodes for Lithium-ion cells: Effect of electrolyte composition and cycling windows},
author = {Klett, Matilda and Gilbert, James A. and Pupek, Krzysztof Z. and Trask, Stephen E. and Abraham, Daniel P.},
abstractNote = {The electrochemical performance of cells with a Li1.03(Ni0.5Co0.2Mn0.3)0.97O2 (NCM523) positive electrode and a blended silicon-graphite (Si-Gr) negative electrode are investigated using various electrolyte compositions and voltage cycling windows. Voltage profiles of the blended Si-Gr electrode show a superposition of graphite potential plateaus on a sloped Si profile with a large potential hysteresis. The effect of this hysteresis is seen in the cell impedance versus voltage data, which are distinctly different for the charge and discharge cycles. We confirm that the addition of compounds, such as vinylene carbonate (VC) and fluoroethylene carbonate (FEC) to the baseline 1.2 M LiPF6 in ethylene carbonate (EC): ethyl methyl carbonate (EMC) (3:7 w/w) electrolyte, improves cell capacity retention with higher retention seen at higher additive contents. We show that reducing the lower cutoff voltage (LCV) of full cells to 2.5 V increases the Si-Gr electrode potential to 1.12 V vs. Li/Li+; this relatively-high delithiation potential correlates with the lower capacity retention displayed by the cell. Hence, we show that raising the upper cutoff voltage (UCV) can increase cell energy density without significantly altering capacity retention over 100 charge discharge cycles.},
doi = {10.1149/2.0131701jes},
url = {https://www.osti.gov/biblio/1339644}, journal = {Journal of the Electrochemical Society},
issn = {0013-4651},
number = 1,
volume = 164,
place = {United States},
year = {2016},
month = {10}
}

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Cited by: 11 works
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Works referenced in this record:

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    Works referencing / citing this record:

    Differentiating the Degradation Phenomena in Silicon-Graphite Electrodes for Lithium-Ion Batteries
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    Capacity fade in high energy silicon-graphite electrodes for lithium-ion batteries
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    Flexible Three-Dimensional Heterostructured ZnO-Co 3 O 4 on Carbon Cloth as Free-Standing Anode with Outstanding Li/Na Storage Performance
    journal, January 2018


    Graphit‐ und‐Silicium‐Anoden für Lithiumionen‐ Hochenergiebatterien
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    Fast Charging of Li-Ion Cells: Part II. Nonlinear Contributions to Cell and Electrode Polarization
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    Assessment of Li-Inventory in Cycled Si-Graphite Anodes Using LiFePO 4 as a Diagnostic Cathode
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    Analysis of Degradation of Si/Carbon||LiNi 0.5 Mn 0.3 Co 0.2 O 2 Full Cells: Effect of Prelithiation
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    Morphological Changes of Silicon Nanoparticles and the Influence of Cutoff Potentials in Silicon-Graphite Electrodes
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    Communication—Effect of Lower Cutoff Voltage on the 1 st Cycle Performance of Silicon Electrodes
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    Interfacially Induced Cascading Failure in Graphite‐Silicon Composite Anodes
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    Crosslinked Chitosan Networks as Binders for Silicon/Graphite Composite Electrodes in Li-Ion Batteries
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    Integration of Graphite and Silicon Anodes for the Commercialization of High‐Energy Lithium‐Ion Batteries
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    Quantifying lithium concentration gradients in the graphite electrode of Li-ion cells using operando energy dispersive X-ray diffraction
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    Lithium Oxalate as Capacity and Cycle-Life Enhancer in LNMO/Graphite and LNMO/SiG Full Cells
    journal, January 2018