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Title: Effects of the particle properties on electrochemical performance of nanocrystalline LiAl0.1Cu0.1Mn1.8O4 cathode materials prepared by ultrasonic spray pyrolysis

Abstract

LiAl0.1Cu0.1Mn1.8O4 particles were prepared by the ultrasonic spray pyrolysis using nitrate salts at 800 °C in air atmosphere. The effects of ultrasonic frequency (120 kHz and 2.4 MHz) of the atomizer on the particle properties were investigated by X-ray diffraction, scanning and transmission electron microscopy, and energy dispersive spectroscopy. In addition, cyclic voltammetry and galvanostatic tests were performed to study the influence of the particle structure on the electrochemical behavior in Li-ion battery half-cell. Particle characterization studies reveal that the LiAl0.1Cu0.1Mn1.8O4 particles have a nanocrystalline spinel structure. The secondary particles have a spherical morphology and the average particle size of the samples decreases with increase in frequency from 3.5 μm to 770 nm. Both samples have porous and partly hollow structure. The initial discharge capacities of LiAl0.1Cu0.1Mn1.8O4 particles produced using 120 kHz and 2.4 MHz atomizers are 82 and 75 mAh·g-1, respectively, between 3.0 and 4.8 V at 0.1C rate. Discharge capacities at the 4 V potential region drop to 85% of the initial values for both samples after 110 cycles. Although the micron-sized LiAl0.1Cu0.1Mn1.8O4 particles exhibit higher capacity at 0.1C than the finer particles, the cathode prepared from the submicron particles has a better rate capability with a retention of the discharge capacity that is 3 times higher at 4Cmore » rate.« less

Authors:
 [1];  [2];  [2]
  1. Istanbul Technical Univ., Istanbul (Turkey). Dept. of Metallurgical & Materials Engineering; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Storage and Distributed Resources Division
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Storage and Distributed Resources Division
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1532248
Alternate Identifier(s):
OSTI ID: 1397970
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Electroanalytical Chemistry
Additional Journal Information:
Journal Volume: 792; Journal Issue: C; Journal ID: ISSN 1572-6657
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Ebin, Burçak, Doeff, Marca, and Battaglia, Vincent. Effects of the particle properties on electrochemical performance of nanocrystalline LiAl0.1Cu0.1Mn1.8O4 cathode materials prepared by ultrasonic spray pyrolysis. United States: N. p., 2017. Web. doi:10.1016/j.jelechem.2017.03.031.
Ebin, Burçak, Doeff, Marca, & Battaglia, Vincent. Effects of the particle properties on electrochemical performance of nanocrystalline LiAl0.1Cu0.1Mn1.8O4 cathode materials prepared by ultrasonic spray pyrolysis. United States. https://doi.org/10.1016/j.jelechem.2017.03.031
Ebin, Burçak, Doeff, Marca, and Battaglia, Vincent. 2017. "Effects of the particle properties on electrochemical performance of nanocrystalline LiAl0.1Cu0.1Mn1.8O4 cathode materials prepared by ultrasonic spray pyrolysis". United States. https://doi.org/10.1016/j.jelechem.2017.03.031. https://www.osti.gov/servlets/purl/1532248.
@article{osti_1532248,
title = {Effects of the particle properties on electrochemical performance of nanocrystalline LiAl0.1Cu0.1Mn1.8O4 cathode materials prepared by ultrasonic spray pyrolysis},
author = {Ebin, Burçak and Doeff, Marca and Battaglia, Vincent},
abstractNote = {LiAl0.1Cu0.1Mn1.8O4 particles were prepared by the ultrasonic spray pyrolysis using nitrate salts at 800 °C in air atmosphere. The effects of ultrasonic frequency (120 kHz and 2.4 MHz) of the atomizer on the particle properties were investigated by X-ray diffraction, scanning and transmission electron microscopy, and energy dispersive spectroscopy. In addition, cyclic voltammetry and galvanostatic tests were performed to study the influence of the particle structure on the electrochemical behavior in Li-ion battery half-cell. Particle characterization studies reveal that the LiAl0.1Cu0.1Mn1.8O4 particles have a nanocrystalline spinel structure. The secondary particles have a spherical morphology and the average particle size of the samples decreases with increase in frequency from 3.5 μm to 770 nm. Both samples have porous and partly hollow structure. The initial discharge capacities of LiAl0.1Cu0.1Mn1.8O4 particles produced using 120 kHz and 2.4 MHz atomizers are 82 and 75 mAh·g-1, respectively, between 3.0 and 4.8 V at 0.1C rate. Discharge capacities at the 4 V potential region drop to 85% of the initial values for both samples after 110 cycles. Although the micron-sized LiAl0.1Cu0.1Mn1.8O4 particles exhibit higher capacity at 0.1C than the finer particles, the cathode prepared from the submicron particles has a better rate capability with a retention of the discharge capacity that is 3 times higher at 4C rate.},
doi = {10.1016/j.jelechem.2017.03.031},
url = {https://www.osti.gov/biblio/1532248}, journal = {Journal of Electroanalytical Chemistry},
issn = {1572-6657},
number = C,
volume = 792,
place = {United States},
year = {Sat Mar 18 00:00:00 EDT 2017},
month = {Sat Mar 18 00:00:00 EDT 2017}
}

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