Lithium Incorporation into Silicon Single Crystals as a Model System for Anode Materials in Lithium-Ion Batteries
In the field of automotive transportation lithium-ion batteries with high charge/discharge rates and high power densities are required. These factors are dependent on the diffusion or interface controlled insertion of Li into solid hosts. It is necessary to understand the kinetic processes going on at the electrodes to optimize charging times and to increase the power densities. Within this proposal neutron reflectometry studies on the intercalation of Li into silicon single crystals during galvanostatic charging/discharging at room temperature are planned. We will monitor the formation and movement of the LixSi phase front by the produced changes in reflectivity of the electrode/electrolyte interface. The results will give important information on lithiation mechanism and kinetics, which is the first step in enhancing the properties of Lithium-ion batteries.
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SEIDLHOFER Beatrix-Kamelia; CUBITT Robert; HUEGER Erwin; JERLIU Bujar; SCHMIDT Harald and STEITZ Roland. (2014). Lithium Incorporation into Silicon Single Crystals as a Model System for Anode Materials in Lithium-Ion Batteries. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-04-81
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