Nanomechanical Quantification of Elastic, Plastic, and Fracture Properties of LiCoO2

Young's elastic modulus, hardness, and fracture toughness (KIc) of individual grains are reported for polycrystalline LiCoO2, a metal oxide cathode used in lithium‐ion batteries, as measured via instrumented nanoindentation (indentations within circled locations; dashed line indicates grain bou...

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Bibliographic Details
Published in:Advanced energy materials 2012-08, Vol.2 (8), p.940-944
Main Authors: Qu, Meng, Woodford, William H., Maloney, John M., Carter, W. Craig, Chiang, Yet-Ming, Van Vliet, Krystyn J.
Format: Article
Language:English
Subjects:
fracture toughness
LiCoO2
lithium-ion batteries
metal oxide cathodes
nanoindentations
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Summary:Young's elastic modulus, hardness, and fracture toughness (KIc) of individual grains are reported for polycrystalline LiCoO2, a metal oxide cathode used in lithium‐ion batteries, as measured via instrumented nanoindentation (indentations within circled locations; dashed line indicates grain boundary). The wide range of KIc does not correlate strongly with grain orientation.
ISSN:1614-6832
1614-6840
DOI:10.1002/aenm.201200107