Patent ID: 8501047
Filing Date: 2013-08-06
Classification: C01B,H01M,Y02E

Abstract:
1. A mixed carbon material comprising carbon material A which has cores of graphite powder having carbon adhered to or coated on the surface of the cores, and carbon material B which is graphite powder, wherein the carbon which is adhered to or coated on the surface of the cores of carbon material A is turbostratic carbon, the compressibility which is expressed by the compressed density defined below is 1.60-1.78 g/cm said compressed density being the density (g/cm the average particle diameter of carbon material B is less than or equal to the average particle diameter of carbon material A, and the mixing ratio of carbon material A to carbon material B (carbon material A/carbon material B) is from 1 to 9 parts of carbon material A to 1 part of carbon material B as a mass ratio.