First-principles study of two-dimensional C-silicyne nanosheet as a promising anode material for rechargeable Li-ion batteries

Abstract

Li-ion batteries are one of the sustainable alternatives to meet the outgrowing energy demands of the increasing population. Finding a pertinent negative electrode is a keystone in improving the battery...

A nodal flexible-surface three-dimensional carbon network with potential applications as a lithium-ion battery anode material

“…It is evident from previous studies that negative frequencies, which are less than 10 cm À1 , can be ignored. [59][60][61][62][63] Furthermore, the highest phonon mode of the 3D COT network is found to be around 2161 cm À1 at the centre (G) of the tetragonal Brillouin zone, which greatly exceeds the highest phonon mode frequency of graphite (E1600 cm À1 ). These results clearly affirm the dynamical stability of the 3D COT network.…”