Multilayer graphene spheres generated from anthracite and semi-coke as anode materials for lithium-ion batteries

Synthetic graphite, similar to the natural one, has been widely used as anode materials for lithium-ion batteries, but it is still challenging to find a cost-effective and environmentally friendly procedure to graphitize abundant coal based carbonaceous materials. Herein, we describe a scalable graphitization strategy to convert anthracite and semi-coke into open-shell hollow multilayer graphene spheres using nickel as catalyst at relatively low...