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Structural and electrochemical investigation of Zn-doped LiCoO2 powders

Structural and electrochemical investigation of Zn-doped LiCoO2 powders A commercial cathode material (LiCoO2) was modified by doping with Zn to improve its performance in lithium battery. The structure and morphology of the doped cathode material were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM). The synthesized samples were characterized using X-ray photoelectron spectra (XPS), used to investigate the elementary states on the system. The electrical conductivity variations of doped powders were measured in the temperature range between 30 and 150 °C. The 3 mol% Zn-doped LiCoO2 sample shows the highest reversibility capacity (178 mA h g−1) after 30 cycles in the voltage window 3.0–4.5 V. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Structural and electrochemical investigation of Zn-doped LiCoO2 powders

Ionics , Volume 18 (2) – Sep 25, 2011

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References (34)

Publisher
Springer Journals
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Chemistry; Condensed Matter Physics; Renewable and Green Energy; Optical and Electronic Materials; Electrochemistry
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/s11581-011-0607-6
Publisher site
See Article on Publisher Site

Abstract

A commercial cathode material (LiCoO2) was modified by doping with Zn to improve its performance in lithium battery. The structure and morphology of the doped cathode material were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM). The synthesized samples were characterized using X-ray photoelectron spectra (XPS), used to investigate the elementary states on the system. The electrical conductivity variations of doped powders were measured in the temperature range between 30 and 150 °C. The 3 mol% Zn-doped LiCoO2 sample shows the highest reversibility capacity (178 mA h g−1) after 30 cycles in the voltage window 3.0–4.5 V.

Journal

IonicsSpringer Journals

Published: Sep 25, 2011

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