Patent ID: 6132898
Filing Date: 2000-10-17
Classification: H01M,Y02E,Y02P

Abstract:
An electricity generating element for a battery, the element comprising:a positive electrode;a negative electrode, at least one of said positive and negative electrodes comprising a three-dimensional porous body having an active material carried therein;a separator, said positive and negative electrodes being arranged so as to be adjacent to each other through said separator;a conductive plate which is arranged to abut on from 50% to 100% of an area of an electrode plate of said electrode comprising the three-dimensional porous body having the active material carried therein, said conductive plate having a projecting portion at one of end edge portions thereof which projects from an end portion of said electricity generating element;wherein said electricity generating element further comprises a coil in which said positive and negative electrodes are coiled through said separator and arranged helically to be adjacent to each other; andsaid conductive plate is arranged in a more inner circumferential side of the coil than said electrode on which said conductive plate abuts, and the coil start end of said conductive plate is displaced in a direction opposite the coil direction from the coil start end of said electrode on which said conductive plate abuts.