Patent ID: 7651817
Filing Date: 2010-01-26
Classification: C01B,H01M,Y02E,Y02T

Abstract:
1. A process for producing a spherical carbon material, comprising: subjecting a spherical crosslinked vinyl resin to an oxidation treatment in an oxidizing gas atmosphere to obtain a spherical carbon precursor, and carbonizing the spherical carbon precursor at 1000-2000° C. in a non-oxidizing gas atmosphere; wherein the spherical crosslinked vinyl resin comprises a suspension polymerization product of a monomer mixture which comprises 10-80 wt. % of a styrene monomer and 10-90 wt. % of an acrylonitrile monomer, respectively based on the monomer mixture, and further contains a crosslinking agent in a proportion of at least 15 wt. % of the styrene monomer.