Concentration Gradient Core-Shell Li[Ni0.6Co0.15Mn0.25]O2 for
Rechargeable Lithium Batteries: Comparative Study of the Shell Morphologies
of Nanoparticles and Nanorods
The core–shell structure greatly suppressed the shuttle effect of the lithium–selenium battery and the robust carbon shells could remain unbroken even after 100 cycles and flexibly accommodate to the volume change of selenium cores.