Patent ID: 9716270
Date: 2017-07-25
CPC Classifications: H01M,Y02E

Claim:
1. An electrode material comprising: a mixture obtained by partially crushing a granulated body comprising a carbonaceous film formed on surface of electrode active material particles, the mixture comprising a partially-crushed granulated body, primary particles comprising the carbonaceous film formed on surfaces of the electrode active material particles, and agglomerated particles in which a plurality of the primary particles gather, wherein an average particle diameter of the electrode material is 0.3 μm to 4.5 μm, wherein an affinity value to N-methyl-2-pyrrolidone of the electrode material measured through pulse NMR is in a range of 5000 to 20000, wherein the carbonaceous film is substantially uniformly formed on the surfaces of the electrode active material particles, wherein a film thickness of the carbonaceous film is in a range of 0.1 nm to 10.0 nm, wherein a coating ratio of the carbonaceous film in the carbonaceous film coated electrode active material particles is 80% or more, wherein an amount of carbon in the electrode material is in a range of 0.8% by mass to 3% by mass, and wherein a ratio of discharge capacity (10 C/0.1 C) is 0.39 or more.