| 摘要 |
PROBLEM TO BE SOLVED: To provide a winding type cell with a group of electrodes which can be easily fixed inside a cell case, enabled to endure the severe vibration.shock added for long time. SOLUTION: Protrusion parts 6 having a contracted diameter part 1a with a contracted outer diameter, and a top end part 1b with elastically deformable top end, are formed at both end of an axis core 1 which is contacting with an electrode column 4, and a ring-shaped axis core ring part 7, contacting with the electrode column 4, deformable by compression, is inserted in and fitted to the contracted diameter part 1a. The relation of the coefficient of thermal expansion of the electrode column 4, the axis core 1, and the axis core ring part 7 is; electrode column 4 < axis core 1 < axis core ring part 7, and the compression elastic modulus of the axis core ring part 7 is smaller than that of the axis core 1. |
