| 摘要 |
Provided is a lithium ion secondary battery that promotes reactivity at the electrode collector side and that causes increased constant-output discharge performance. The lithium ion secondary battery (100) is provided with an electrode (1) having a bottom layer (5), which is formed from a first active material and a second active material having an electrical conductivity differing from that of the first active material, and a top layer (6), which is formed from the first active material and the second active material. The bottom layer (5) is formed by means of a first bottom layer forming slurry, which contains the first active material, and a second bottom layer forming slurry, which contains the second active material, being applied in alternating stripes on a collector (12), and the top layer is formed by means of a first top layer forming slurry, which contains the first active material, being applied overlaid upon the second bottom layer forming slurry, and a second top layer forming slurry, which contains the second active material, being applied overlaid upon the first bottom player forming slurry. |
