A Nano-Rattle SnO2@carbon Composite Anode Material for High-Energy Li-ion Batteries by Melt Diffusion Impregnation
The huge volume expansion in Sn-based alloy anode materials (up to 360%) leads to a dramatic mechanical stress and breaking of particles, resulting in the loss of conductivity and thereby capacity fading.To overcome this issue, SnO2@C nano-rattle composites based on 2 nanoparticles in and on porous amorphous carbon Solid spoon spheres were synthesi