Olk Shell Like Structure News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Magnesium hydride (MgH2) has been recognized as a promising anode material of lithium-ion batteries (LIBs) owing to its ultrahigh specific capacity. The low conductivity and the structural pulverization induced by large volume expansion, however, has long limited its practical lithium storage performance. Herein, a series of yolk-shell-like structures, composed of porous MgH2 nanoparticles (NPs) decorated with Mg-based composites through in-situ solid-gas reaction using MgH2 as both the reactant and the structural template, have been fabricated and uniformly dispersed on electronically conductive graphene. It could not only physically accommodate the volume change of MgH2 owing to the physical protection of Mg-based composites and the formation of void space inside MgH2 NPs, but also effectively facilitate the transportation of electrons throughout the whole electrode. Particularly, the uniform decoration of ultrathin Mg(BH4)2 as the shell with thermodynamically favorable intercalation ....

I Storage Performance , Agnesium Borohydride , Magnesium Hydride , Olk Shell Like Structure ,