Patent ID: 7335447

Claim:
A graphite particle for use in a negative electrode of a lithium secondary battery, the graphite particle having: an aspect ratio of 5 or less; a specific surface area of 8 m 2 /g or less; a crystallite size in a thickness direction of the crystal of 500 Å or more and a size of crystallite in a direction of a plane of the crystal of 1,000 Å or less, both as measured by X ray broad angle diffraction; a pore volume of pores having a size falling in the range of 10 2 Å to 10 6 Å of 0.4 to 2.0 cc/g based on the weight of the graphite particle; and a pore volume of pores having a size falling in the range of 1×10 2 Å to 2×10 4 Å of 0.08 to 0.4 cc/g based on the weight of the graphite particle.