Anode material for lithium ion secondary battery, method of producing anode material for lithium ion secondary battery, anode for lithium ion secondary battery, and lithium ion secondary battery
Abstract:
An anode material for a lithium ion secondary battery including a carbon material satisfying the following (1) to (3), (6), and (7): (1) an average particle size (D50) is 22 μm or less, (2) D90/D10 of particle sizes is 2.2 or less, (3) a linseed oil absorption amount is 50 mL/100 g or less, (6) a portion of the carbon material with a sphericity of from 0.6 to 0.8 and a particle size of from 10 μm to 20 μm is 5% by number or more, and (7) a portion of the carbon material with the sphericity of 0.7 or less and a particle size of 10 μm or less is 0.3% by number or less.
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