Patent ID: 9382831
Filing Date: 2016-07-05
CPC Classification: B01J,C04B,F01N,Y02T

Claim Text:
1. A honeycomb structure comprising a tubular honeycomb structure section having porous partition walls to define and form a plurality of cells extending from one end surface to the other end surface to become through channels of a fluid, and an outer peripheral wall positioned in the outermost periphery; and a pair of electrode sections disposed on a side surface of the honeycomb structure section, wherein an electrical resistivity of the honeycomb structure section is from 1 to 200 Ωcm, each of the pair of electrode sections is formed into a band shape extending in a cell extending direction of the honeycomb structure section, and each of the pair of electrode sections is constituted of two or more electrode bodies laminated in a diametric direction in a cross section perpendicular to the cell extending direction of the honeycomb structure section, in the cross section perpendicular to the cell extending direction, the one electrode section in the pair of electrode sections is disposed on a side opposite to the other electrode section in the pair of electrode sections via the center of the honeycomb structure section, and when in the respective two or more electrode bodies constituting each of the electrode sections in the pair of electrode sections, the electrode body of each electrode section which is disposed closest to a side of the outer peripheral wall is a first electrode body, an area of the first electrode body of each electrode section in the side surface of the honeycomb structure section is larger than an area of the other electrode body in the two or more electrode bodies of each electrode section, and in at least one cross section perpendicular to the cell extending direction, a center angle of the first electrode body of each electrode section is larger than a center angle of the other electrode body in the two or more electrode bodies of each electrode section.