Non-aqueous electrolyte secondary battery and process for producing positive electrode for use in non-aqueous electrolyte secondary battery

A non-aqueous electrolyte secondary battery comprising:

• a positive electrode formed of a graphite powder, where a Lc (112) which is the size of crystallite in a c axis direction which is calculated from a (112) diffraction line of a graphite crystal and determined by a powder X-ray diffraction method is from 4 nm to 30 nm, and a charge capacity at the first cycle which is calculated on the basis of a total weight of a graphite material filled in the battery is 20 to 50 (mAh/g);
• and
• a negative electrode formed of a material capable of absorption/desorption of a lithium metal and lithium,
• wherein said positive electrode and said negative electrode are placed to oppose each other in an electrolyte containing lithium salt;
• and
• wherein the graphite powder of said positive electrode has an intensity ratio I(004)/I(006) of 15 or less, which is the ratio of an intensity I (004) of a diffraction line corresponding to a (004) surface to an intensity I (006) of a diffraction line corresponding to a (006) surface which is determined by an X-ray wide angle diffraction method.