| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithium-ion secondary battery using an aluminum-laminated film, wherein the possibility of liquid leakage is reduced as much as possible even when such a battery is used for a product that is influenced by vibration. <P>SOLUTION: A positive electrode sheet 5d and a negative electrode sheet 6d are provided with corrugated plate-like bending parts 12d formed by thermal pressing. Motion of a laminated body is reduced by configuring a material held by bending-shaped holding parts 3d, 4d in a form to fit a laminated body stacked via a separator 7 to the bending parts 12d and electrolytic solution through vacuum sealing into an aluminum-laminated film 2. This ensures to configure a product in which scraping between the aluminum-laminated film and the laminated body is constrained, and the possibility of liquid leakage is reduced as much as possible. <P>COPYRIGHT: (C)2009,JPO&INPIT |
