GRAPHITE MATERIAL FOR NEGATIVE ELECTRODE OF LITHIUM-ION RECHARGEABLE BATTERY, LITHIUM-ION RECHARGEABLE BATTERY USING SAME, AND METHOD FOR PRODUCING GRAPHITE MATERIAL FOR LITHIUM-ION RECHARGEABLE BATTERY

摘要

The present invention involves a graphite material for a negative electrode of a lithium-ion rechargeable battery, wherein Lc (112)/Lc (006), which is defined as the ratio between the spread of hexagonal carbon and lamination displacement, ranges from 0.08 to 0.11. Furthermore, a crystallite size (Lc (006)) calculated from a wide-angle X-ray diffraction line is 30 nm to 40 nm, and the average particle size is 3 mum to 20 mum.