Nanoscale Anodes of Silicon and Germanium for Lithium Batteries

Nanoscale Anodes of Silicon and Germanium for Lithium Batteries 

Brookhaven National Laboratory, Sustainable Energy Technologies Department, Upton, NY 11973, USA 

Nanomaterials for Lithium-ion Batteries Fundamentals and Applications Edited by Rachfd Yazami 

Due to the low voltage and high theoretical capacities, silicon and germanium are obvious candidates for the lithium anode. The Li-Si and Li-Ge phase diagrams are replete with alloy phases with high lithium content. A few of the possible Li-Si compositions are shown in the reaction below  

Similarly, germanium also exhibits a number of lithiated phases (see Ref 6 and references therein)  

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