| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high capacity battery excellent in safety in attaining sure operation of a safety valve to rapidly discharge gas generated in the battery in a limited battery space for increasing the battery capacity and energy density. <P>SOLUTION: The battery is configured that the safety valve is formed in a lid plate of a battery can enclosing a laminate, current-carrying components such as external output terminals and the like of a positive electrode and a negative electrode and the safety valve are disposed on the same lid plate, the safety valve is disposed to cover at least a part of the center line of the lid plate between the pair of terminals of the positive electrode and the negative electrode, a distance from the centerline of the lid plate to a safety-valve-side end of the current-carrying component is less than a distance from the centerline of the lid plate to an outermost bore of the safety valve, and a projection area from an opening to a lid plate surface during safety valve operation does not overlap projection areas from the current-carrying components such as the external output terminals and the like of the positive electrode and the negative electrode to the lid plate surface. <P>COPYRIGHT: (C)2011,JPO&INPIT |
