Electrically heatable honeycomb body

摘要

An electrically heatable honeycomb body (10) comprises a large number of passages (12) which are each defined by partition walls (11) made of an electroconductive material and which are substantially parallel to the direction of a gas flowing through the honeycomb body, and two ends which are the gas inlet and outlet sides of honeycomb body, wherein the heat generation of honeycomb body by electrification is controlled by adjusting the flow of electricity therein, e.g. by a slit (13). Those cells each constituted by a passage and partition walls, present in the vicinity of each region of current concentration are formed with a structure such that the stress caused by current concentration can be reduced. In this honeycomb body the stress caused by current concentration is reduced and thereby the rupture of its cells can be prevented. <IMAGE>