Patent ID: 9356309
Filing Date: 2016-05-31
CPC Classification: H01M,Y02E,Y02P

Claim Text:
1. A prismatic battery comprising: an outer can comprising an opening, a bottom, a first side wall, a second side wall, a third side wall, and a fourth side wall, the first side wall and the second side wall being disposed substantially in parallel to each other, the third side wall and the fourth side wall being disposed substantially in parallel to each other, each of the first, second, third and fourth side walls being disposed substantially in perpendicular to the bottom; a sealing plate sealing the opening of the outer can; a flat electrode assembly provided with a positive electrode substrate exposed portion laminated on one end thereof and a negative electrode substrate exposed portion laminated on the other end thereof, the flat electrode assembly being accommodated in the outer can; and a current collector which is connected with an outermost surface of at least one of the laminated positive electrode substrate exposed portion and the laminated negative electrode substrate exposed portion in a laminated direction; the current collector being provided with the body thereof and a rib extended in a direction substantially perpendicular to the body of the current collector, the rib being disposed substantially perpendicular to the first side wall of the outer can, wherein an insulation member is disposed between the rib and the first side wall of the outer can, the rib is formed with an easily bendable part in a region excluding a tip part of the rib, and the bendable part is provided with a thin-wall part, a groove part, an opening part, or a notch part which narrows the width of the rib.