Studies of the Electrochemical Behavior of LiNi0.80Co0.15Al0.05O2 Electrodes Coated with LiAlO2

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http://hdl.handle.net/10138/313147

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Srur-Lavi , O , Miikkulainen , V , Markovsky , B , Grinblat , J , Talianker , M , Fleger , Y , Cohen-Taguri , G , Mor , A , Tal-Yosef , Y & Aurbach , D 2017 , ' Studies of the Electrochemical Behavior of LiNi0.80Co0.15Al0.05O2 Electrodes Coated with LiAlO2 ' , Journal of the Electrochemical Society , vol. 164 , no. 13 , pp. A3266-A3275 . https://doi.org/10.1149/2.1631713jes

Title: Studies of the Electrochemical Behavior of LiNi0.80Co0.15Al0.05O2 Electrodes Coated with LiAlO2
Author: Srur-Lavi, Onit; Miikkulainen, Ville; Markovsky, Boris; Grinblat, Judith; Talianker, Michael; Fleger, Yafit; Cohen-Taguri, Gili; Mor, Albert; Tal-Yosef, Yosef; Aurbach, Doron
Contributor organization: Department of Chemistry
Date: 2017
Language: eng
Number of pages: 10
Belongs to series: Journal of the Electrochemical Society
ISSN: 0013-4651
DOI: https://doi.org/10.1149/2.1631713jes
URI: http://hdl.handle.net/10138/313147
Abstract: In this paper, we studied the influence of LiAlO2 coatings of 0.5, 1 and 2 nm thickness prepared by Atomic Layer Deposition onto LiNi0.8Co0.15Al0.05O2 electrodes, on their electrochemical behavior at 30 and 60 degrees C. It was demonstrated that upon cycling, 2 nm LiAlO2 coated electrodes displayed similar to 3 times lower capacity fading and lower voltage hysteresis comparing to bare electrodes. We established a correlation among the thickness of the LiAlO2 coating and parameters of the self-discharge processes at 30 and 60 degrees C. Significant results on the elevated temperature cycling and aging of bare and LiAlO2 coated electrodes at 4.3 V were obtained and analyzed for the first time. By analyzing of X-ray diffraction patterns of bare and 2 nm coated LiNi0.8Co0.15Al0.05O2 electrodes after cycling, we concluded that cycled materials preserved their original structure described by R-3m space group and no additional phases were detected. (c) The Author(s) 2017. Published by ECS. All rights reserved.
Subject: LITHIUM-ION BATTERIES
ATOMIC LAYER DEPOSITION
LINI0.8CO0.15AL0.05O2 CATHODE MATERIAL
STRUCTURAL-CHANGES
LI
PERFORMANCE
SURFACE
VOLTAGE
RICH
LINI0.6CO0.2MN0.2O2
114 Physical sciences
116 Chemical sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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