Graphite-containing composition, negative electrode for a lithium secondary battery, and lithium secondary battery

A graphite-containing composition that is prepared by mixing a graphite powder and a binder, and solidifying and shaping the mixture into a sheet with a density of 1.5 to 2.0 g/cm3,

• wherein the graphite has an intensity ratio I(110)/I(002) of 0.5 or more, wherein I(002) is an X-ray diffraction peak intensity I(002) at a (002) plane and I(110) is an X-ray diffraction peak intensity I(110) at a (110) plane when the sheet plane is measured by X-ray diffraction.

A method of preparing a graphite-containing composition comprising dispersing a graphite powder and a binder in a solvent to prepare a paste, coating the paste on a substrate, aligning the (002) plane of the graphite particles in the same direction with a magnetic field, eliminating the solvent from the composition, and solidifying and shaping the graphite powder with a binder.

A method of preparing a graphite-containing composition containing a graphite, comprising mixing at least a graphite powder and a binder to form a mixture, and solidifying and shaping the mixture in a magnetic field to align the (002) plane of graphite particles in the same direction.

A negative electrode for a lithium secondary battery prepared by mixing a graphite powder and a binder, and solidifying and shaping the mixture into a sheet with a density of 1.5 to 2.0 g/cm3, wherein the graphite has an intensity ratio I(110)/I(002) of 0.5 or more wherein I(002) is an X-ray diffraction peak intensity I(002) at a (002) plane and I(110) is an X-ray diffraction peak intensity I(110) at a (110) plane, as measured by X-ray diffraction.

A method of preparing a lithium secondary battery comprising a positive electrode and a negative electrode, comprising:

• preparing a negative electrode by pressing a mixture of at least a graphite powder containing graphite particles and a binder in a magnetic field, molding the mixture, and aligning the (002) plane of the graphite particles in the same direction;
• and
• positioning a positive electrode toward the (002) plane of the graphite particles in the negative electrode.