Patent ID: 6723466
Filing Date: 2004-04-20
Classification: H01M,Y02E,Y02P

Abstract:
A storage battery which comprises:a rolled, laminated battery element made up of two groups of electrode materials composed of positive and negative electrode materials, laminated together through separators which separate the positive and negative electrode materials; a cylindrical hollow battery case enclosing therein the laminated battery element; a spindle arranged along a direction of an axis of the rolled, laminated battery element so that the spindle is fixedly connected to the laminated battery element; a first axial end of the spindle being constrained in the axial direction of the laminated battery element; a second axial end of the spindle being elastically supported; the battery case comprising a cylindrical hollow outer sheathing closed at one end and having an opening end, and a lid mounted on the outer sheathing to hermetically cover the opening end; the first axial end of the spindle being constrained in the axial direction by the closed end of the outer sheathing; and the second axial end of the spindle being elastically supported by the lid.