TY - JOUR
T1 - Stable crack growth in nanostructured Li-batteries
AU - Aifantis, K. E.
AU - Dempsey, J. P.
N1 - Funding Information:
KEA is grateful to her advisor Professor John Willis for his encouragement and helpful remarks and to the National Science Foundation for its support through its Graduate Research Fellowship Program. Both authors would like to thank Professors Andrew Palmer and Stephen Hackney for their helpful discussions. J.P.D. would like to acknowledge the support of the US Army (by Grant DAAD 19-00-1-0479) and the National Science Foundation (by the OPP Grant 0338226).
PY - 2005/4/27
Y1 - 2005/4/27
N2 - The formation of damage, which results from the large volume expansion of the active sites during electrochemical cycling, in rechargeable Li-batteries, is modelled from a fracture mechanics viewpoint to facilitate the selection of the most effective electrode materials and configurations. The present study is a first step towards examining stable cracking in such high-energy storage devices, by considering three different configurations at the nanoscale, which are currently at an experimental stage. As a result, stability diagrams concerning crack growth are constructed and compared for the following cases: (a) the electrodes are thin films, (b) the Li-insertion sites in the anode are nanofibre-like inclusions, (c) the active sites in both electrodes are spherical.
AB - The formation of damage, which results from the large volume expansion of the active sites during electrochemical cycling, in rechargeable Li-batteries, is modelled from a fracture mechanics viewpoint to facilitate the selection of the most effective electrode materials and configurations. The present study is a first step towards examining stable cracking in such high-energy storage devices, by considering three different configurations at the nanoscale, which are currently at an experimental stage. As a result, stability diagrams concerning crack growth are constructed and compared for the following cases: (a) the electrodes are thin films, (b) the Li-insertion sites in the anode are nanofibre-like inclusions, (c) the active sites in both electrodes are spherical.
KW - Cracking
KW - Fracture mechanics
KW - Li-batteries
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U2 - 10.1016/j.jpowsour.2004.11.037
DO - 10.1016/j.jpowsour.2004.11.037
M3 - Article
AN - SCOPUS:17644381927
SN - 0378-7753
VL - 143
SP - 203
EP - 211
JO - Journal of Power Sources
JF - Journal of Power Sources
IS - 1-2
ER -