NOVELTY - The negative electrode (10) comprises a negative electrode active substance layer (30) that contains a negative electrode active substance (36) and is supported on a negative electrode collector (20). The negative electrode active substance layer comprises 1-50 vol.% of carbon nanowalls (32) that are formed on the negative electrode collector, and the negative electrode active substance is supported on or filled between the carbon nanowalls, is in the form of particles and films and covers surfaces of the carbon nanowalls. A lithium alloy is used as the negative electrode active substance.    USE - The negative electrode is useful for a lithium secondary battery, which is useful as a power source for a vehicle (all claimed) such as an automobile, and personal computers.    ADVANTAGE - The negative electrode has a high current collecting efficiency and energy density, and improves the capacity, performance, cycle characteristics and durability of the battery.    DETAILED DESCRIPTION - The negative electrode (10) comprises a negative electrode active substance layer (30) that contains a negative electrode active substance (36) and is supported on a negative electrode collector (20). The negative electrode active substance layer comprises 1-50 vol.% of carbon nanowalls (32) that are formed on the negative electrode collector, and the negative electrode active substance is supported on or filled between the carbon nanowalls, is in the form of particles and films and covers surfaces of the carbon nanowalls. A lithium alloy is used as the negative electrode active substance. The carbon nanowalls have a wall thickness of 3-50 nm. A distance between surfaces of the carbon nanowalls is 50-500 nm. INDEPENDENT CLAIMS are included for:    (1) a method for preparing a negative electrode for a lithium secondary battery; and    (2) a lithium secondary battery.    DESCRIPTION OF DRAWING(S) - The diagram shows a cross-sectional view of a negative electrode.    Negative electrode (10)    Negative electrode collector (20)    Negative electrode active substance layer (30)    Carbon nanowalls (32)    Negative electrode active substance. (36)