Patent ID: 7947396

Claim:
A negative electrode for a non-aqueous electrolyte secondary battery, which reversibly inserts/extracts lithium ions, the negative electrode comprising: a current collector in which a non-protruding portion and a protruding portion are formed at least on one surface thereof; and a columnar body which is formed by laminating n (n≧2) stages of columnar body portions which are obliquely erected on the protruding portion of the current collector and in which a content ratio of elements sequentially vary in a longitudinal direction of the current collector, and which has a configuration in which variation directions of content ratios of elements of odd-numbered stages of columnar body portions and even-numbered stages of columnar body portions are different from each other, wherein at least three surfaces of the protruding portion in a section of the longitudinal direction are covered by the columnar body portions.