NOVELTY - The battery (1) has a negative electrode (A) and a positive electrode (C) with a negative electrode active material layer (12) and a positive electrode active material layer (16) formed by two negative electrode active material parts (12a) and positive electrode active material parts (16a), respectively. A separator (20) is provided between the electrodes. The two electrodes are integrated such that the negative parts are faced between the adjacent positive parts, where the negative active material parts do not interfere between the positive material parts.    USE - Separator-type lithium ion secondary battery for use in a mobile device such as laptop computer and cell phone and automobile.    ADVANTAGE - The two electrodes are integrated in a position that the linear first active material part is orthogonalized with the linear second active material part in approximately vertical view to surfaces of current collectors, so that the convex linear first active material part is not entered between the corresponding convex linear second active material parts even when the active material layers include concavo-convex structure of high aspect ratio, and force applied to the separator is most effectively and easily dispersed by contact sites of the linear first active material parts with the linear second active material parts to be maximum so as to effectively protect the separator from destroy and achieve the battery with large capacity and excellent charge-discharge performance.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for manufacturing a lithium ion secondary battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a vertical sectional view of a lithium ion secondary battery.    Negative electrode (A)    Positive electrode (C)    Separator-type lithium ion secondary battery (1)    Negative electrode current collector (10)    Negative electrode active material layer (12)    Negative electrode active material part (12a)    Positive electrode active material layer (16)    Positive electrode active material part (16a)    Positive electrode current collector (18)    Separator (20)