Patent ID: 6162560
Filing Date: 2000-12-19
Classification: H01M,Y02E

Abstract:
A layer-built chemical cell device, comprising:a positive electrode including a current collecting material and an active material layer;a negative electrode including another current collecting material and another active material layer;an electrolyte introduced in a sealed space formed by fixing together the positive electrode and negative electrode;a separator layer interposed between the positive electrode and the negative electrode;wherein the active material layer of either the positive electrode or the negative electrode is formed by laminating a plurality of active material sub-layers containing one or more active materials, such an active material layer being deposited on a current collecting material so as to form either the positive electrode or the negative electrode, thereby forming a structure in which the plurality of active material sub-layers are interposed between the current collecting material and the separator layer;wherein each of the plurality of the active material sub-layers is formed by at least one active material, at least one electrically conductive material, and at least one binder, said at least one active material comprising at least one of an organic compound and an inorganic compound;wherein the number of active material sub-layers is variable depending upon a desired capacity of a chemical cell.