NOVELTY - A lithium secondary battery (10) has positive electrode with a positive-electrode active material layer on a positive-electrode collector and a negative electrode with a negative-electrode active material layer on negative-electrode collector. The negative-electrode active material of negative-electrode active material layer contains laminar graphite which is bend such that average number of bend per particles is more than 0 to 3 and average aspect ratio of 1.8 or more.    USE - Lithium secondary battery is used for driving power supply of motor in motor vehicle (all claimed) e.g. hybrid vehicle, plug-in hybrid vehicle, fuel-cell vehicle and electric vehicle.    ADVANTAGE - The lithium secondary battery has reduced internal resistance and excellent input-and-output characteristics.    DETAILED DESCRIPTION - A lithium secondary battery has positive electrode with a positive-electrode active material layer on a positive-electrode collector and a negative electrode with a negative-electrode active material layer on negative-electrode collector. The positive-electrode active material layer contains positive-electrode active material which reversibly occludes and releases lithium ion. The negative-electrode active material of negative-electrode active material layer contains laminar graphite which is bend such that average number of bend per particles is more than 0 to 3 and average aspect ratio of 1.8 or more. In the cross-section perpendicular to surface of negative-electrode collector, the negative-electrode active material is oriented such that angle formed by length of negative-electrode active material with respect to surface of negative-electrode collector is 0-30 degrees and ratio of number of negative-electrode active material having angle of 60-90 degrees and number of negative-electrode active material having angle of 0-30 degrees is 1 or more.    DESCRIPTION OF DRAWING(S) - The drawing shows the perspective view of the lithium secondary battery.    Lithium secondary battery (10)    Positive-electrode terminal (40)    Negative-electrode terminal (60)    Cover component (82)    Injection hole (86)