Patent ID: 9525170
Filing Date: 2016-12-20
CPC Classification: B82Y,H01M,Y02E,Y02T

Claim Text:
1. A negative active material, comprising: a plurality of non-carbonaceous nanoparticles capable of doping or undoping lithium; and a plurality of crystalline carbonaceous nano-sheets, each of the crystalline carbonaceous nano-sheets comprising a first amorphous carbonaceous coating layer substantially covering and contacting the surface of the crystalline carbonaceous nano-sheet, each of the non-carbonaceous nanoparticles comprising a second amorphous carbonaceous coating layer substantially covering and contacting the surface of the non-carbonaceous nanoparticle, wherein the surface of each crystalline carbonaceous nano-sheet is separated from the surface of each non-carbonaceous nanoparticle by the first and second amorphous carbonaceous coating layers.