Stable crack growth in nanostructured Li-batteries
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 prese...
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| Veröffentlicht in: | Journal of power sources 2005-04, Vol.143 (1), p.203-211 |
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| container_title | Journal of power sources |
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| creator | Aifantis, K.E. Dempsey, J.P. |
| description | 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. |
| doi_str_mv | 10.1016/j.jpowsour.2004.11.037 |
| format | Article |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Cracking Direct energy conversion and energy accumulation Electrical engineering. Electrical power engineering Electrical power engineering Electrochemical conversion: primary and secondary batteries, fuel cells Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fracture mechanics Fuel cells Li-batteries |
| title | Stable crack growth in nanostructured Li-batteries |
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