| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing an angular battery which avoids inferiority of storage and coming off of a negtive electrode active material in the case of storing high volumetrically an electrode group in a vessel. SOLUTION: A rectangular frame-shaped opening part 5 and a stepped part 6 of shape protruded inward, formed under the poening part 5, are provided, a positive/negative electrode 2, 3 is alternately interposed by interposing a separator 1 therebetween in an angular vessel 7 concurrently serving as a negative electrode terminal, a process, storing an electrode group 4 having a structure bending a negative electrode 3a in the outermost layer to the outside, is provided. |
