Carbon material for non-aqueous electrolyte secondary battery, negative electrode for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery, and manufacturing method for carbon material for non-aqueous electrolyte secondary battery

1. A carbon material for a non-aqueous electrolyte secondary battery comprising:

hybrid particles comprising graphite particles and carbon fine particles;

wherein

the carbon fine particles are uniformly present on the surface of the graphite particles and wherein a content of the carbon fine particles is 0.01 parts by mass to 20 parts by mass with respect to 100 parts by mass of the graphite particles,

a primary particle size of the carbon fine particles is from 3 nm to 500 nm, and

wherein a ratio of microscopic Raman R values measured for 30 hybrid particles selected at random by a microscopic Raman spectroscopy apparatus give a Raman R (90/10 ) value expressed by the following formula 2 of from 1 to 4.3;

Raman R (90/10) value=(Microscopic Raman R value of the particle whose microscopic Raman R value is the (total number of measured particles×0.9)th smallest microscopic Raman R value in the case where the microscopic Raman R values are arranged in an ascending order)/(Microscopic Raman R value of the particle whose microscopic Raman R value is the (total number of measured particles×0.1)th smallest microscopic Raman R value in the case where the microscopic Raman R values are arranged in an ascending order).  Formula 2:

2. The carbon material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein the hybrid particles further comprise amorphous carbon.

3. The carbon material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein the Raman R value of the hybrid particles is from 0.35 to 1.

4. The carbon material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein a BET specific surface area of the hybrid particles is 4.5 m 2 /g or more.

5. The carbon material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein the carbon material has a total pore volume of pores having a pore size of not larger than 200 nm as determined by a Hg porosimetry analysis of 0.04 mL/g or more.

6. A negative electrode for a non-aqueous electrolyte secondary battery comprising:

a current collector having a negative electrode active material on the current collector, wherein the negative electrode active material is the carbon material for a non-aqueous electrolyte secondary battery according to claim 1 .

7. A non-aqueous electrolyte secondary battery comprising a positive electrode and a negative electrode, which are able to absorb and release a metal ion, and an electrolyte solution, wherein the negative electrode is the negative electrode for a nor aqueous electrolyte secondary battery according to claim 6 .

8. A production method for a carbon material for a non-aqueous electrolyte secondary battery, according to claim 2 ,

the process comprising:

coating the carbon tine particles on to the graphite particles in a dry state, and

mixing the graphite particles coated with the carbon fine particles with an organic precursor of an amorphous carbon to obtain a mixture, and then

subjecting the mixture to a firing treatment.

9. The production method for a carbon material for a non-aqueous electrolyte secondary battery according to claim 8 , wherein an amount of oil absorption of the carbon tine particles is 330 mL/100 g or less.

10. The carbon material for a non-aqueous electrolyte secondary battery according to claim 1 , wherein the Raman R value of the hybrid particles is 0.8 or less.