| 摘要 |
PURPOSE:To make it possible to obtain a nonaqueous electrolyte cell with an excellent large current pulse property by attaching a negative electrode active substance and a negative electrode can closely with a pressing punch furnishing an uneven design on the pressing surface. CONSTITUTION:A negative electrode active substance and a negative electrode can 35 are attached closely with a pressing punch to which a design of projections 1 and recesses 2 is furnished at the pressing surface. As a result, not only the outer periphery of the lithium, but also the other parts are adhered closely. Since the projections 1 press the lithium 34 strongly, the adhesive force of the parts the projections 1 strike is strong in particular. And since the design of the projections 1 is cut here and there, the air escapes through the cuttings when the lithium 34 is pressed, and the center of the lithium 34 is also attached closely to the negative electrode can 35. A large current flow of the nonaqueous electrolyte cell can be realized consequently. |
