Exotic nanoparticles of group IV monochalcogenides as anode materials for Li-Ion batteries

Enhancing the electrochemical performance of a micron-sized Ge anode through in situ surface composite flower-like Zn2GeO4 for Li-ion batteries

“…[4][5][6] Group IV elements (Si, Ge, and Sn), due to their high theoretical specic capacity, have attracted much attention. [7][8][9] In particular, Ge has received a lot of attention because of its high theoretical specic capacity of 1600 mA h g À1 , fast Li + diffusivity (400 times greater than Si), and excellent electric conductivity (100 times higher than Si). 10,11 However, Ge anodes show large volume changes of about 370% during charge/discharge cycles.…”