Carbonaceous materials surface-modified with nanoparticles and methods for their preparation

摘要

The present invention relates to a novel surface-modified carbonaceous material to which nanoparticles are attached on the surface. The carbonaceous material is, for example, natural or synthetic graphite, and the nanoparticles are in the form of a plasma polymer produced, for example, in a plasma reactor. The present invention also relates to a method for producing the carbonaceous substance and a use thereof as a cathode active material of a lithium ion battery. The deposition of nanoparticles on the surface of the carbonaceous material has been found to result in a significant improvement in its flow properties and to increase the apparent and / or tap density of the resulting material.