| 摘要 |
PURPOSE:To provide a cell having a stable cyclic life by press-fitting a plate-like Al to the side which contains a shear drop part of the plane-like Al punched out into a predetermined shape by means of shearing processing, followed by alloying Li and Al under the existence of an electrolyte in the cell so as to constitute a negative electrode. CONSTITUTION:A negative electrode can 6 is made of stainless steel, and a collector 7 made of a stainless steel mesh is spot-welded to its inner surface, followed by press-fitting Al 3 to the collector 7. This press-fitting is performed from the surface on the side containing a burr part 3b of the Al 3, accordingly the surface on the side containing the shear drop part 3a of the Al 3 is arranged on the side opposite to the press-fitted surface of the Al 3 to the collector 7. Li 2 is punched out of a plate of predetermined thickness into a disk shape of a predetermined diameter by means of a punching blade, and Li 2 is press- fitted to the surface on the side containing the shear drop part 3b of the Al 3. After assembling, the Li 2 and the Al 3 are electrochemically alloyed under the existence of an electrolyte so as to produce an Li-Al alloy, resulting in constituting a negative electrode 1. |
