| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery pack, attaining both a vibration-proofing property and a performance deterioration preventing property which can not be attained by a conventional structure, and capable of restraining the breakage of a terminal part and increase of resistance caused by vibration, as well as a complex battery pack and a vehicle. <P>SOLUTION: The battery pack 100 is composed of at least two unit batteries 10. Each unit battery 10 is enveloped by a polymer metal complex film, and respective current collectors of a positive electrode and a negative electrode of the unit battery are connected to a positive and a negative electrode tab 20. The tab 20 protrudes from a sealing part of the enveloping film, and a polymer layer is formed at the interface between the enveloping film and the tab 20. The difference of a width of the current collector and a width of the tab is smaller than the width of the tab, and the cross section of the tab is smaller than the cross section of a general welded part excluding the cross section of the tab at one side of the enveloping film where the tab protrudes. <P>COPYRIGHT: (C)2004,JPO |
