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

被引：77
作者：
Qu, Meng [1 ]
Woodford, William H. [1 ]
Maloney, John M. [1 ]
Carter, W. Craig [1 ]
Chiang, Yet-Ming [1 ]
Van Vliet, Krystyn J. [1 ]
机构：
[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA
来源：
ADVANCED ENERGY MATERIALS | 2012年 / 2卷 / 08期
关键词：
LiCoO2; metal oxide cathodes; lithium-ion batteries; nanoindentations; fracture toughness; LITHIUM-ION BATTERIES; ELECTRODE PARTICLES; INDENTATION CRACKS; ENERGY DENSITY; LI-ION; TOUGHNESS; INTERCALATION; LIXCOO2; DIFFUSION; MODEL;
D O I：
10.1002/aenm.201200107
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Young's elastic modulus, hardness , and fracture toughness (K ic ) of individual grains are reported for polycrystalline LiCoO 2, 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 K Ic does not correlate strongly with grain orientation. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：940 / 944
页数：5
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