Nickel-Foam-Supported Reticular CoO-Li2O Composite Anode Materials for Lithium Ion Batteries

Although considered to be the inactive component, Li2O plays three important roles in the carbon‐free CoO–Li2O composite films (see SEM image) that have now been prepared: It prohibits CoO particle growth during synthesis, it oxidizes Co2+ to Co3+, and it acts as a structural buffer. The composite f...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2005-11, Vol.44 (43), p.7085-7089
Main Authors: Yu, Yan, Chen, Chun-Hua, Shui, Jiang-Lan, Xie, Song
Format: Article
Language:English
Subjects:
batteries
cobalt
composites
electrodeposition
lithium
Online Access:Get full text
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Summary:Although considered to be the inactive component, Li2O plays three important roles in the carbon‐free CoO–Li2O composite films (see SEM image) that have now been prepared: It prohibits CoO particle growth during synthesis, it oxidizes Co2+ to Co3+, and it acts as a structural buffer. The composite films, supported on a conducting nickel‐foam substrate, were prepared by the electrostatic spray deposition technique. They display large initial discharge capacities and low first‐cycle capacity losses.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200501905