| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary battery aiming at space saving and manufacturing efficiency, capable of enhancing reliability, and a method for manufacturing the secondary battery. SOLUTION: Many number of positive electrode plates 20A and negative electrode plates 20B are laminated and housed in a case of a lithium secondary battery, and those many number of electrode plates 20A, 20B are split into a plural pairs of bundles 100, at every prescribed number, and the electrode plates 20A, 20B are joined to one sheet of belt-like current collector leads 22A, 22B at each bundle 100, and the current collector leads 22A, 22B are connected and fixed by welding to a positive electrode 30A and a negative electrode 30B respectively. It is preferable that a bolt 40 for fixing the leads 22A, 22B to the electrodes 30A, 30B is also fixed to the electrodes 30A, 30B by welding. COPYRIGHT: (C)2005,JPO&NCIPI |
